---
_id: '8919'
abstract:
- lang: eng
  text: the vibration amplitudes of bladed disk assemblies can be reduced significantly
    by means of friction damping devices such as shrouds, damping wires and interblade
    Friction dampers. in practice, interblade Friction dampers are applied in rotating
    arrangements with various geometries showing curved or flat surfaces like so-called
    wedge-shaped dampers. this paper is focusing on a computation method to predict
    the dynamical behaviour of turbine blades with Friction dampers including both,
    curved and wedge-shaped dampers with hertzian and non-herutian contact conditions,
    respectively. the presented computation method uses a 3d contact model to calculate
    the contact forces, including normal and tangential stiffnesses, roughness and
    microslip effects. the relative displacements in the contact area can be expressed
    by means of 6 dof of the blade platforms and 6 rigid body dof of the damper including
    translational and rotational displacements. the relative displacement of the Friction
    damper with respect to the adjacent blades can be derived from the contact kinematics
    of the blade-damper-blade system and the equations of motion of the Friction damper.
    thus, the model can be applied to investigate spatial motions of the bladed disk
    assembly including bending and torsional vibrations. a comparison of different
    Friction damper designs with respect to an optimal damper geometry and damper
    mass is presented. the advantages and disadvantages of each design will be discussed.
    experimental results are shown to validate the developed computation method.
author:
- first_name: Lars
  full_name: Panning, Lars
  last_name: Panning
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
- first_name: Karl
  full_name: Popp, Karl
  last_name: Popp
citation:
  ama: 'Panning L, Sextro W, Popp K. Optimization of Interblade Friction Damper. In:
    <i>International Gas Turbine \&#38; Aeroengine Congress \&#38; Exhibition, ASME</i>.
    Munich, Germany; 2000:1-8.'
  apa: Panning, L., Sextro, W., &#38; Popp, K. (2000). Optimization of Interblade
    Friction Damper. In <i>International Gas Turbine \&#38; Aeroengine Congress \&#38;
    Exhibition, ASME</i> (pp. 1–8). Munich, Germany.
  bibtex: '@inproceedings{Panning_Sextro_Popp_2000, place={Munich, Germany}, title={Optimization
    of Interblade Friction Damper}, booktitle={International Gas Turbine \&#38; Aeroengine
    Congress \&#38; Exhibition, ASME}, author={Panning, Lars and Sextro, Walter and
    Popp, Karl}, year={2000}, pages={1–8} }'
  chicago: Panning, Lars, Walter Sextro, and Karl Popp. “Optimization of Interblade
    Friction Damper.” In <i>International Gas Turbine \&#38; Aeroengine Congress \&#38;
    Exhibition, ASME</i>, 1–8. Munich, Germany, 2000.
  ieee: L. Panning, W. Sextro, and K. Popp, “Optimization of Interblade Friction Damper,”
    in <i>International Gas Turbine \&#38; Aeroengine Congress \&#38; Exhibition,
    ASME</i>, 2000, pp. 1–8.
  mla: Panning, Lars, et al. “Optimization of Interblade Friction Damper.” <i>International
    Gas Turbine \&#38; Aeroengine Congress \&#38; Exhibition, ASME</i>, 2000, pp.
    1–8.
  short: 'L. Panning, W. Sextro, K. Popp, in: International Gas Turbine \&#38; Aeroengine
    Congress \&#38; Exhibition, ASME, Munich, Germany, 2000, pp. 1–8.'
date_created: 2019-04-15T09:59:46Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
language:
- iso: eng
page: 1-8
place: Munich, Germany
publication: International Gas Turbine \& Aeroengine Congress \& Exhibition, ASME
status: public
title: Optimization of Interblade Friction Damper
type: conference
user_id: '55222'
year: '2000'
...
---
_id: '8920'
author:
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: 'Sextro W. The Calculation of the Forced Response of Shrouded Blades with Friction
    Contacts and Its Experimental Verification. In: <i>International Gas Turbine \&#38;
    Aeroengine Congress \&#38; Exhibition, ASME</i>. Munich, Germany; 2000:1-8.'
  apa: Sextro, W. (2000). The Calculation of the Forced Response of Shrouded Blades
    with Friction Contacts and Its Experimental Verification. In <i>International
    Gas Turbine \&#38; Aeroengine Congress \&#38; Exhibition, ASME</i> (pp. 1–8).
    Munich, Germany.
  bibtex: '@inproceedings{Sextro_2000, place={Munich, Germany}, title={The Calculation
    of the Forced Response of Shrouded Blades with Friction Contacts and Its Experimental
    Verification}, booktitle={International Gas Turbine \&#38; Aeroengine Congress
    \&#38; Exhibition, ASME}, author={Sextro, Walter}, year={2000}, pages={1–8} }'
  chicago: Sextro, Walter. “The Calculation of the Forced Response of Shrouded Blades
    with Friction Contacts and Its Experimental Verification.” In <i>International
    Gas Turbine \&#38; Aeroengine Congress \&#38; Exhibition, ASME</i>, 1–8. Munich,
    Germany, 2000.
  ieee: W. Sextro, “The Calculation of the Forced Response of Shrouded Blades with
    Friction Contacts and Its Experimental Verification,” in <i>International Gas
    Turbine \&#38; Aeroengine Congress \&#38; Exhibition, ASME</i>, 2000, pp. 1–8.
  mla: Sextro, Walter. “The Calculation of the Forced Response of Shrouded Blades
    with Friction Contacts and Its Experimental Verification.” <i>International Gas
    Turbine \&#38; Aeroengine Congress \&#38; Exhibition, ASME</i>, 2000, pp. 1–8.
  short: 'W. Sextro, in: International Gas Turbine \&#38; Aeroengine Congress \&#38;
    Exhibition, ASME, Munich, Germany, 2000, pp. 1–8.'
date_created: 2019-04-15T10:02:28Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
language:
- iso: eng
page: 1-8
place: Munich, Germany
publication: International Gas Turbine \& Aeroengine Congress \& Exhibition, ASME
status: public
title: The Calculation of the Forced Response of Shrouded Blades with Friction Contacts
  and Its Experimental Verification
type: conference
user_id: '55222'
year: '2000'
...
---
_id: '8909'
author:
- first_name: Karl
  full_name: Popp, Karl
  last_name: Popp
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: 'Popp K, Sextro W. Schwingungsanalyse von vorgespannten Schaufeln mit Deckplatten
    im Schaufelkranz. In: <i>Forschungsvereinigung Verbrennungskraftmaschinen (FW)
    -Lnformationstagung Turbinen</i>. Heidelberg; 1999:21-38.'
  apa: Popp, K., &#38; Sextro, W. (1999). Schwingungsanalyse von vorgespannten Schaufeln
    mit Deckplatten im Schaufelkranz. In <i>Forschungsvereinigung Verbrennungskraftmaschinen
    (FW) -lnformationstagung Turbinen</i> (pp. 21–38). Heidelberg.
  bibtex: '@inproceedings{Popp_Sextro_1999, place={Heidelberg}, title={Schwingungsanalyse
    von vorgespannten Schaufeln mit Deckplatten im Schaufelkranz}, number={504}, booktitle={Forschungsvereinigung
    Verbrennungskraftmaschinen (FW) -lnformationstagung Turbinen}, author={Popp, Karl
    and Sextro, Walter}, year={1999}, pages={21–38} }'
  chicago: Popp, Karl, and Walter Sextro. “Schwingungsanalyse von Vorgespannten Schaufeln
    Mit Deckplatten Im Schaufelkranz.” In <i>Forschungsvereinigung Verbrennungskraftmaschinen
    (FW) -Lnformationstagung Turbinen</i>, 21–38. Heidelberg, 1999.
  ieee: K. Popp and W. Sextro, “Schwingungsanalyse von vorgespannten Schaufeln mit
    Deckplatten im Schaufelkranz,” in <i>Forschungsvereinigung Verbrennungskraftmaschinen
    (FW) -lnformationstagung Turbinen</i>, 1999, no. 504, pp. 21–38.
  mla: Popp, Karl, and Walter Sextro. “Schwingungsanalyse von Vorgespannten Schaufeln
    Mit Deckplatten Im Schaufelkranz.” <i>Forschungsvereinigung Verbrennungskraftmaschinen
    (FW) -Lnformationstagung Turbinen</i>, no. 504, 1999, pp. 21–38.
  short: 'K. Popp, W. Sextro, in: Forschungsvereinigung Verbrennungskraftmaschinen
    (FW) -Lnformationstagung Turbinen, Heidelberg, 1999, pp. 21–38.'
date_created: 2019-04-15T09:33:43Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
issue: '504'
language:
- iso: eng
page: 21-38
place: Heidelberg
publication: Forschungsvereinigung Verbrennungskraftmaschinen (FW) -lnformationstagung
  Turbinen
status: public
title: Schwingungsanalyse von vorgespannten Schaufeln mit Deckplatten im Schaufelkranz
type: conference
user_id: '55222'
year: '1999'
...
---
_id: '8910'
author:
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: 'Sextro W. Experimental verification of a non-Hertzian contact model. In: <i>International
    Conference on Computational Methods in Contact Mechanics</i>. ; 1999:181-190.'
  apa: Sextro, W. (1999). Experimental verification of a non-Hertzian contact model.
    In <i>International conference on computational methods in contact mechanics</i>
    (pp. 181–190).
  bibtex: '@inproceedings{Sextro_1999, title={Experimental verification of a non-Hertzian
    contact model}, booktitle={International conference on computational methods in
    contact mechanics}, author={Sextro, Walter}, year={1999}, pages={181–190} }'
  chicago: Sextro, Walter. “Experimental Verification of a Non-Hertzian Contact Model.”
    In <i>International Conference on Computational Methods in Contact Mechanics</i>,
    181–90, 1999.
  ieee: W. Sextro, “Experimental verification of a non-Hertzian contact model,” in
    <i>International conference on computational methods in contact mechanics</i>,
    1999, pp. 181–190.
  mla: Sextro, Walter. “Experimental Verification of a Non-Hertzian Contact Model.”
    <i>International Conference on Computational Methods in Contact Mechanics</i>,
    1999, pp. 181–90.
  short: 'W. Sextro, in: International Conference on Computational Methods in Contact
    Mechanics, 1999, pp. 181–190.'
date_created: 2019-04-15T09:35:39Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
language:
- iso: eng
page: 181-190
publication: International conference on computational methods in contact mechanics
status: public
title: Experimental verification of a non-Hertzian contact model
type: conference
user_id: '55222'
year: '1999'
...
---
_id: '8911'
author:
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: 'Sextro W. Forced Vibration of Elastic Structures with Friction Contacts. In:
    <i>ASME Design Engineering Technical Conferences</i>. Las Vegas, Nevada, USA;
    1999:1-10.'
  apa: Sextro, W. (1999). Forced Vibration of Elastic Structures with Friction Contacts.
    In <i>ASME Design Engineering Technical Conferences</i> (pp. 1–10). Las Vegas,
    Nevada, USA.
  bibtex: '@inproceedings{Sextro_1999, place={Las Vegas, Nevada, USA}, title={Forced
    Vibration of Elastic Structures with Friction Contacts}, number={DETC99/VIB-8180},
    booktitle={ASME Design Engineering Technical Conferences}, author={Sextro, Walter},
    year={1999}, pages={1–10} }'
  chicago: Sextro, Walter. “Forced Vibration of Elastic Structures with Friction Contacts.”
    In <i>ASME Design Engineering Technical Conferences</i>, 1–10. Las Vegas, Nevada,
    USA, 1999.
  ieee: W. Sextro, “Forced Vibration of Elastic Structures with Friction Contacts,”
    in <i>ASME Design Engineering Technical Conferences</i>, 1999, no. DETC99/VIB-8180,
    pp. 1–10.
  mla: Sextro, Walter. “Forced Vibration of Elastic Structures with Friction Contacts.”
    <i>ASME Design Engineering Technical Conferences</i>, no. DETC99/VIB-8180, 1999,
    pp. 1–10.
  short: 'W. Sextro, in: ASME Design Engineering Technical Conferences, Las Vegas,
    Nevada, USA, 1999, pp. 1–10.'
date_created: 2019-04-15T09:37:12Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
issue: DETC99/VIB-8180
language:
- iso: eng
page: 1-10
place: Las Vegas, Nevada, USA
publication: ASME Design Engineering Technical Conferences
status: public
title: Forced Vibration of Elastic Structures with Friction Contacts
type: conference
user_id: '55222'
year: '1999'
...
---
_id: '8912'
author:
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
- first_name: Karl
  full_name: Popp, Karl
  last_name: Popp
citation:
  ama: Sextro W, Popp K. Ein ebenes Reibkontaktmodell zur Berechnung von Schaufelschwingungen
    mit Reibelementen. <i>Zeitschrift für angewandte Mathematik und Mechanik (ZAMM)</i>.
    1999;79:311-312.
  apa: Sextro, W., &#38; Popp, K. (1999). Ein ebenes Reibkontaktmodell zur Berechnung
    von Schaufelschwingungen mit Reibelementen. <i>Zeitschrift Für Angewandte Mathematik
    Und Mechanik (ZAMM)</i>, <i>79</i>, 311–312.
  bibtex: '@article{Sextro_Popp_1999, title={Ein ebenes Reibkontaktmodell zur Berechnung
    von Schaufelschwingungen mit Reibelementen}, volume={79}, journal={Zeitschrift
    für angewandte Mathematik und Mechanik (ZAMM)}, author={Sextro, Walter and Popp,
    Karl}, year={1999}, pages={311–312} }'
  chicago: 'Sextro, Walter, and Karl Popp. “Ein Ebenes Reibkontaktmodell Zur Berechnung
    von Schaufelschwingungen Mit Reibelementen.” <i>Zeitschrift Für Angewandte Mathematik
    Und Mechanik (ZAMM)</i> 79 (1999): 311–12.'
  ieee: W. Sextro and K. Popp, “Ein ebenes Reibkontaktmodell zur Berechnung von Schaufelschwingungen
    mit Reibelementen,” <i>Zeitschrift für angewandte Mathematik und Mechanik (ZAMM)</i>,
    vol. 79, pp. 311–312, 1999.
  mla: Sextro, Walter, and Karl Popp. “Ein Ebenes Reibkontaktmodell Zur Berechnung
    von Schaufelschwingungen Mit Reibelementen.” <i>Zeitschrift Für Angewandte Mathematik
    Und Mechanik (ZAMM)</i>, vol. 79, 1999, pp. 311–12.
  short: W. Sextro, K. Popp, Zeitschrift Für Angewandte Mathematik Und Mechanik (ZAMM)
    79 (1999) 311–312.
date_created: 2019-04-15T09:39:17Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
intvolume: '        79'
language:
- iso: eng
page: 311-312
publication: Zeitschrift für angewandte Mathematik und Mechanik (ZAMM)
status: public
title: Ein ebenes Reibkontaktmodell zur Berechnung von Schaufelschwingungen mit Reibelementen
type: journal_article
user_id: '55222'
volume: 79
year: '1999'
...
---
_id: '8913'
author:
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
- first_name: Karl
  full_name: Popp, Karl
  last_name: Popp
citation:
  ama: 'Sextro W, Popp K. Schwingungsanalyse von vorgespannten Schaufeln mit Deckplatten
    im Schaufelkranz. In: <i>Forschungsvereinigung Verbrennungskraftmaschinen (FW)</i>.
    Frankfurt am Main, Germany; 1999:56.'
  apa: Sextro, W., &#38; Popp, K. (1999). Schwingungsanalyse von vorgespannten Schaufeln
    mit Deckplatten im Schaufelkranz. In <i>Forschungsvereinigung Verbrennungskraftmaschinen
    (FW)</i> (p. 56). Frankfurt am Main, Germany.
  bibtex: '@inproceedings{Sextro_Popp_1999, place={Frankfurt am Main, Germany}, title={Schwingungsanalyse
    von vorgespannten Schaufeln mit Deckplatten im Schaufelkranz}, number={686}, booktitle={Forschungsvereinigung
    Verbrennungskraftmaschinen (FW)}, author={Sextro, Walter and Popp, Karl}, year={1999},
    pages={56} }'
  chicago: Sextro, Walter, and Karl Popp. “Schwingungsanalyse von Vorgespannten Schaufeln
    Mit Deckplatten Im Schaufelkranz.” In <i>Forschungsvereinigung Verbrennungskraftmaschinen
    (FW)</i>, 56. Frankfurt am Main, Germany, 1999.
  ieee: W. Sextro and K. Popp, “Schwingungsanalyse von vorgespannten Schaufeln mit
    Deckplatten im Schaufelkranz,” in <i>Forschungsvereinigung Verbrennungskraftmaschinen
    (FW)</i>, 1999, no. 686, p. 56.
  mla: Sextro, Walter, and Karl Popp. “Schwingungsanalyse von Vorgespannten Schaufeln
    Mit Deckplatten Im Schaufelkranz.” <i>Forschungsvereinigung Verbrennungskraftmaschinen
    (FW)</i>, no. 686, 1999, p. 56.
  short: 'W. Sextro, K. Popp, in: Forschungsvereinigung Verbrennungskraftmaschinen
    (FW), Frankfurt am Main, Germany, 1999, p. 56.'
date_created: 2019-04-15T09:40:32Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
issue: '686'
language:
- iso: eng
page: '56'
place: Frankfurt am Main, Germany
publication: Forschungsvereinigung Verbrennungskraftmaschinen (FW)
status: public
title: Schwingungsanalyse von vorgespannten Schaufeln mit Deckplatten im Schaufelkranz
type: conference
user_id: '55222'
year: '1999'
...
---
_id: '8907'
author:
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
- first_name: Karl
  full_name: Popp, Karl
  last_name: Popp
- first_name: I
  full_name: Wolter, I
  last_name: Wolter
citation:
  ama: 'Sextro W, Popp K, Wolter I. Vibrational Behaviour of Tuned and Detuned Bladed
    Disks with Friction Dampers. In: <i>International Congress on Combustion Engines,
    Proceedings of the 22nd CIMAC</i>. Vol 1. Kopenhagen, D{\"a}nemark; 1998:257-270.'
  apa: Sextro, W., Popp, K., &#38; Wolter, I. (1998). Vibrational Behaviour of Tuned
    and Detuned Bladed Disks with Friction Dampers. In <i>International Congress on
    Combustion Engines, Proceedings of the 22nd CIMAC</i> (Vol. 1, pp. 257–270). Kopenhagen,
    D{\"a}nemark.
  bibtex: '@inproceedings{Sextro_Popp_Wolter_1998, place={Kopenhagen, D{\"a}nemark},
    title={Vibrational Behaviour of Tuned and Detuned Bladed Disks with Friction Dampers},
    volume={1}, booktitle={International Congress on Combustion Engines, Proceedings
    of the 22nd CIMAC}, author={Sextro, Walter and Popp, Karl and Wolter, I}, year={1998},
    pages={257–270} }'
  chicago: Sextro, Walter, Karl Popp, and I Wolter. “Vibrational Behaviour of Tuned
    and Detuned Bladed Disks with Friction Dampers.” In <i>International Congress
    on Combustion Engines, Proceedings of the 22nd CIMAC</i>, 1:257–70. Kopenhagen,
    D{\"a}nemark, 1998.
  ieee: W. Sextro, K. Popp, and I. Wolter, “Vibrational Behaviour of Tuned and Detuned
    Bladed Disks with Friction Dampers,” in <i>International Congress on Combustion
    Engines, Proceedings of the 22nd CIMAC</i>, 1998, vol. 1, pp. 257–270.
  mla: Sextro, Walter, et al. “Vibrational Behaviour of Tuned and Detuned Bladed Disks
    with Friction Dampers.” <i>International Congress on Combustion Engines, Proceedings
    of the 22nd CIMAC</i>, vol. 1, 1998, pp. 257–70.
  short: 'W. Sextro, K. Popp, I. Wolter, in: International Congress on Combustion
    Engines, Proceedings of the 22nd CIMAC, Kopenhagen, D{\"a}nemark, 1998, pp. 257–270.'
date_created: 2019-04-15T09:29:15Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
intvolume: '         1'
language:
- iso: eng
page: 257-270
place: Kopenhagen, D{\"a}nemark
publication: International Congress on Combustion Engines, Proceedings of the 22nd
  CIMAC
status: public
title: Vibrational Behaviour of Tuned and Detuned Bladed Disks with Friction Dampers
type: conference
user_id: '55222'
volume: 1
year: '1998'
...
---
_id: '8908'
author:
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
- first_name: Karl
  full_name: Popp, Karl
  last_name: Popp
- first_name: I
  full_name: Wolter, I
  last_name: Wolter
citation:
  ama: 'Sextro W, Popp K, Wolter I. Three-Dimensional Vibration of Bladed Disk Assemblies
    with Friction Dampers. In: <i>The 7th International Symposium on Transport Phenomena
    and Dynamics of Rotating Machinery, Proceedings of ISROMAC-7</i>. Vol B. Honolulu,
    Hawaii, USA; 1998:621-630.'
  apa: Sextro, W., Popp, K., &#38; Wolter, I. (1998). Three-Dimensional Vibration
    of Bladed Disk Assemblies with Friction Dampers. In <i>The 7th International Symposium
    on Transport Phenomena and Dynamics of Rotating Machinery, Proceedings of ISROMAC-7</i>
    (Vol. B, pp. 621–630). Honolulu, Hawaii, USA.
  bibtex: '@inproceedings{Sextro_Popp_Wolter_1998, place={Honolulu, Hawaii, USA},
    title={Three-Dimensional Vibration of Bladed Disk Assemblies with Friction Dampers},
    volume={B}, booktitle={The 7th International Symposium on Transport Phenomena
    and Dynamics of Rotating Machinery, Proceedings of ISROMAC-7}, author={Sextro,
    Walter and Popp, Karl and Wolter, I}, year={1998}, pages={621–630} }'
  chicago: Sextro, Walter, Karl Popp, and I Wolter. “Three-Dimensional Vibration of
    Bladed Disk Assemblies with Friction Dampers.” In <i>The 7th International Symposium
    on Transport Phenomena and Dynamics of Rotating Machinery, Proceedings of ISROMAC-7</i>,
    B:621–30. Honolulu, Hawaii, USA, 1998.
  ieee: W. Sextro, K. Popp, and I. Wolter, “Three-Dimensional Vibration of Bladed
    Disk Assemblies with Friction Dampers,” in <i>The 7th International Symposium
    on Transport Phenomena and Dynamics of Rotating Machinery, Proceedings of ISROMAC-7</i>,
    1998, vol. B, pp. 621–630.
  mla: Sextro, Walter, et al. “Three-Dimensional Vibration of Bladed Disk Assemblies
    with Friction Dampers.” <i>The 7th International Symposium on Transport Phenomena
    and Dynamics of Rotating Machinery, Proceedings of ISROMAC-7</i>, vol. B, 1998,
    pp. 621–30.
  short: 'W. Sextro, K. Popp, I. Wolter, in: The 7th International Symposium on Transport
    Phenomena and Dynamics of Rotating Machinery, Proceedings of ISROMAC-7, Honolulu,
    Hawaii, USA, 1998, pp. 621–630.'
date_created: 2019-04-15T09:31:37Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
language:
- iso: eng
page: 621-630
place: Honolulu, Hawaii, USA
publication: The 7th International Symposium on Transport Phenomena and Dynamics of
  Rotating Machinery, Proceedings of ISROMAC-7
status: public
title: Three-Dimensional Vibration of Bladed Disk Assemblies with Friction Dampers
type: conference
user_id: '55222'
volume: B
year: '1998'
...
---
_id: '8902'
author:
- first_name: Karl
  full_name: Popp, Karl
  last_name: Popp
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: 'Popp K, Sextro W. Schwingungsverhalten von verstimmten Beschaufelungen mit
    Reibelementen. In: <i>Forschungsvereinigung Verbrennungskraftmaschinen (FW) -Lnformationstagung
    Turbinen</i>. Frankfurt am Main, Germany; 1997:131-142.'
  apa: Popp, K., &#38; Sextro, W. (1997). Schwingungsverhalten von verstimmten Beschaufelungen
    mit Reibelementen. In <i>Forschungsvereinigung Verbrennungskraftmaschinen (FW)
    -lnformationstagung Turbinen</i> (pp. 131–142). Frankfurt am Main, Germany.
  bibtex: '@inproceedings{Popp_Sextro_1997, place={Frankfurt am Main, Germany}, title={Schwingungsverhalten
    von verstimmten Beschaufelungen mit Reibelementen}, number={496}, booktitle={Forschungsvereinigung
    Verbrennungskraftmaschinen (FW) -lnformationstagung Turbinen}, author={Popp, Karl
    and Sextro, Walter}, year={1997}, pages={131–142} }'
  chicago: Popp, Karl, and Walter Sextro. “Schwingungsverhalten von Verstimmten Beschaufelungen
    Mit Reibelementen.” In <i>Forschungsvereinigung Verbrennungskraftmaschinen (FW)
    -Lnformationstagung Turbinen</i>, 131–42. Frankfurt am Main, Germany, 1997.
  ieee: K. Popp and W. Sextro, “Schwingungsverhalten von verstimmten Beschaufelungen
    mit Reibelementen,” in <i>Forschungsvereinigung Verbrennungskraftmaschinen (FW)
    -lnformationstagung Turbinen</i>, 1997, no. 496, pp. 131–142.
  mla: Popp, Karl, and Walter Sextro. “Schwingungsverhalten von Verstimmten Beschaufelungen
    Mit Reibelementen.” <i>Forschungsvereinigung Verbrennungskraftmaschinen (FW) -Lnformationstagung
    Turbinen</i>, no. 496, 1997, pp. 131–42.
  short: 'K. Popp, W. Sextro, in: Forschungsvereinigung Verbrennungskraftmaschinen
    (FW) -Lnformationstagung Turbinen, Frankfurt am Main, Germany, 1997, pp. 131–142.'
date_created: 2019-04-15T09:20:58Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
issue: '496'
language:
- iso: eng
page: 131-142
place: Frankfurt am Main, Germany
publication: Forschungsvereinigung Verbrennungskraftmaschinen (FW) -lnformationstagung
  Turbinen
status: public
title: Schwingungsverhalten von verstimmten Beschaufelungen mit Reibelementen
type: conference
user_id: '55222'
year: '1997'
...
---
_id: '8903'
author:
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: 'Sextro W. Schwingungsverhalten von Schaufelkränzen mit Reibelementen bei Frequenzverstimmung.
    In: <i>VDI-Reihe</i>. Vol 11. VDI-Verlag, Düsseldorf; 1997.'
  apa: Sextro, W. (1997). Schwingungsverhalten von Schaufelkränzen mit Reibelementen
    bei Frequenzverstimmung. In <i>VDI-Reihe</i> (Vol. 11). VDI-Verlag, Düsseldorf.
  bibtex: '@inproceedings{Sextro_1997, title={Schwingungsverhalten von Schaufelkränzen
    mit Reibelementen bei Frequenzverstimmung}, volume={11}, number={245}, booktitle={VDI-Reihe},
    publisher={VDI-Verlag, Düsseldorf}, author={Sextro, Walter}, year={1997} }'
  chicago: Sextro, Walter. “Schwingungsverhalten von Schaufelkränzen Mit Reibelementen
    Bei Frequenzverstimmung.” In <i>VDI-Reihe</i>, Vol. 11. VDI-Verlag, Düsseldorf,
    1997.
  ieee: W. Sextro, “Schwingungsverhalten von Schaufelkränzen mit Reibelementen bei
    Frequenzverstimmung,” in <i>VDI-Reihe</i>, 1997, vol. 11, no. 245.
  mla: Sextro, Walter. “Schwingungsverhalten von Schaufelkränzen Mit Reibelementen
    Bei Frequenzverstimmung.” <i>VDI-Reihe</i>, vol. 11, no. 245, VDI-Verlag, Düsseldorf,
    1997.
  short: 'W. Sextro, in: VDI-Reihe, VDI-Verlag, Düsseldorf, 1997.'
date_created: 2019-04-15T09:22:43Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
intvolume: '        11'
issue: '245'
language:
- iso: eng
publication: VDI-Reihe
publisher: VDI-Verlag, Düsseldorf
status: public
title: Schwingungsverhalten von Schaufelkränzen mit Reibelementen bei Frequenzverstimmung
type: conference
user_id: '55222'
volume: 11
year: '1997'
...
---
_id: '8904'
author:
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
- first_name: Karl
  full_name: Popp, Karl
  last_name: Popp
- first_name: Ivo
  full_name: Wolter, Ivo
  last_name: Wolter
citation:
  ama: 'Sextro W, Popp K, Wolter I. Improved reliability of bladed disks due to friction
    dampers. In: <i>The 1997 International Gas Turbine \&#38; Aeroengine Congress
    \&#38; Exposition</i>. ; 1997.'
  apa: Sextro, W., Popp, K., &#38; Wolter, I. (1997). Improved reliability of bladed
    disks due to friction dampers. In <i>The 1997 International Gas Turbine \&#38;
    Aeroengine Congress \&#38; Exposition</i>.
  bibtex: '@inproceedings{Sextro_Popp_Wolter_1997, title={Improved reliability of
    bladed disks due to friction dampers}, booktitle={The 1997 International Gas Turbine
    \&#38; Aeroengine Congress \&#38; Exposition}, author={Sextro, Walter and Popp,
    Karl and Wolter, Ivo}, year={1997} }'
  chicago: Sextro, Walter, Karl Popp, and Ivo Wolter. “Improved Reliability of Bladed
    Disks Due to Friction Dampers.” In <i>The 1997 International Gas Turbine \&#38;
    Aeroengine Congress \&#38; Exposition</i>, 1997.
  ieee: W. Sextro, K. Popp, and I. Wolter, “Improved reliability of bladed disks due
    to friction dampers,” in <i>The 1997 International Gas Turbine \&#38; Aeroengine
    Congress \&#38; Exposition</i>, 1997.
  mla: Sextro, Walter, et al. “Improved Reliability of Bladed Disks Due to Friction
    Dampers.” <i>The 1997 International Gas Turbine \&#38; Aeroengine Congress \&#38;
    Exposition</i>, 1997.
  short: 'W. Sextro, K. Popp, I. Wolter, in: The 1997 International Gas Turbine \&#38;
    Aeroengine Congress \&#38; Exposition, 1997.'
date_created: 2019-04-15T09:24:22Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
language:
- iso: eng
publication: The 1997 International Gas Turbine \& Aeroengine Congress \& Exposition
status: public
title: Improved reliability of bladed disks due to friction dampers
type: conference
user_id: '55222'
year: '1997'
...
---
_id: '8896'
author:
- first_name: Karl
  full_name: Popp, Karl
  last_name: Popp
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: 'Popp K, Sextro W. Schwingungsverhalten eines Schaufelkranzes mit Reibelementen
    bei Frequenzverstimmung. In: <i>Forschungsvereinigung Verbrennungskraftmaschinen
    (FW) - Lnformationstagung Turbinen</i>. Frankfurt am Main, Germany; 1996:53-76.'
  apa: Popp, K., &#38; Sextro, W. (1996). Schwingungsverhalten eines Schaufelkranzes
    mit Reibelementen bei Frequenzverstimmung. In <i>Forschungsvereinigung Verbrennungskraftmaschinen
    (FW) - lnformationstagung Turbinen</i> (pp. 53–76). Frankfurt am Main, Germany.
  bibtex: '@inproceedings{Popp_Sextro_1996, place={Frankfurt am Main, Germany}, title={Schwingungsverhalten
    eines Schaufelkranzes mit Reibelementen bei Frequenzverstimmung}, number={490},
    booktitle={Forschungsvereinigung Verbrennungskraftmaschinen (FW) - lnformationstagung
    Turbinen}, author={Popp, Karl and Sextro, Walter}, year={1996}, pages={53–76}
    }'
  chicago: Popp, Karl, and Walter Sextro. “Schwingungsverhalten Eines Schaufelkranzes
    Mit Reibelementen Bei Frequenzverstimmung.” In <i>Forschungsvereinigung Verbrennungskraftmaschinen
    (FW) - Lnformationstagung Turbinen</i>, 53–76. Frankfurt am Main, Germany, 1996.
  ieee: K. Popp and W. Sextro, “Schwingungsverhalten eines Schaufelkranzes mit Reibelementen
    bei Frequenzverstimmung,” in <i>Forschungsvereinigung Verbrennungskraftmaschinen
    (FW) - lnformationstagung Turbinen</i>, 1996, no. 490, pp. 53–76.
  mla: Popp, Karl, and Walter Sextro. “Schwingungsverhalten Eines Schaufelkranzes
    Mit Reibelementen Bei Frequenzverstimmung.” <i>Forschungsvereinigung Verbrennungskraftmaschinen
    (FW) - Lnformationstagung Turbinen</i>, no. 490, 1996, pp. 53–76.
  short: 'K. Popp, W. Sextro, in: Forschungsvereinigung Verbrennungskraftmaschinen
    (FW) - Lnformationstagung Turbinen, Frankfurt am Main, Germany, 1996, pp. 53–76.'
date_created: 2019-04-15T08:57:05Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
issue: '490'
language:
- iso: eng
page: 53-76
place: Frankfurt am Main, Germany
publication: Forschungsvereinigung Verbrennungskraftmaschinen (FW) - lnformationstagung
  Turbinen
status: public
title: Schwingungsverhalten eines Schaufelkranzes mit Reibelementen bei Frequenzverstimmung
type: conference
user_id: '55222'
year: '1996'
...
---
_id: '8897'
author:
- first_name: Karl
  full_name: Popp, Karl
  last_name: Popp
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: 'Popp K, Sextro W. Dynamical Behaviour of a Bladed Disk with Friction Dampers.
    In: <i>The 2nd European Nonlinear Oscillation Conference - Proceedings of EUROMECH</i>.
    Vol 1. Prag; 1996:157-183.'
  apa: Popp, K., &#38; Sextro, W. (1996). Dynamical Behaviour of a Bladed Disk with
    Friction Dampers. In <i>The 2nd European Nonlinear Oscillation Conference - Proceedings
    of EUROMECH</i> (Vol. 1, pp. 157–183). Prag.
  bibtex: '@inproceedings{Popp_Sextro_1996, place={Prag}, title={Dynamical Behaviour
    of a Bladed Disk with Friction Dampers}, volume={1}, number={518}, booktitle={The
    2nd European Nonlinear Oscillation Conference - Proceedings of EUROMECH}, author={Popp,
    Karl and Sextro, Walter}, year={1996}, pages={157–183} }'
  chicago: Popp, Karl, and Walter Sextro. “Dynamical Behaviour of a Bladed Disk with
    Friction Dampers.” In <i>The 2nd European Nonlinear Oscillation Conference - Proceedings
    of EUROMECH</i>, 1:157–83. Prag, 1996.
  ieee: K. Popp and W. Sextro, “Dynamical Behaviour of a Bladed Disk with Friction
    Dampers,” in <i>The 2nd European Nonlinear Oscillation Conference - Proceedings
    of EUROMECH</i>, 1996, vol. 1, no. 518, pp. 157–183.
  mla: Popp, Karl, and Walter Sextro. “Dynamical Behaviour of a Bladed Disk with Friction
    Dampers.” <i>The 2nd European Nonlinear Oscillation Conference - Proceedings of
    EUROMECH</i>, vol. 1, no. 518, 1996, pp. 157–83.
  short: 'K. Popp, W. Sextro, in: The 2nd European Nonlinear Oscillation Conference
    - Proceedings of EUROMECH, Prag, 1996, pp. 157–183.'
date_created: 2019-04-15T08:59:40Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
intvolume: '         1'
issue: '518'
language:
- iso: eng
page: 157-183
place: Prag
publication: The 2nd European Nonlinear Oscillation Conference - Proceedings of EUROMECH
status: public
title: Dynamical Behaviour of a Bladed Disk with Friction Dampers
type: conference
user_id: '55222'
volume: 1
year: '1996'
...
---
_id: '8895'
author:
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
- first_name: B
  full_name: Schmalhorst, B
  last_name: Schmalhorst
citation:
  ama: Sextro W, Schmalhorst B. Static Behaviour of Drill Strings in Curved Boreholes.
    <i>Zeitschrift für angewandte Mathematik und Mechanik (ZAMM)</i>. 1993;73:255-257.
  apa: Sextro, W., &#38; Schmalhorst, B. (1993). Static Behaviour of Drill Strings
    in Curved Boreholes. <i>Zeitschrift Für Angewandte Mathematik Und Mechanik (ZAMM)</i>,
    <i>73</i>, 255–257.
  bibtex: '@article{Sextro_Schmalhorst_1993, title={Static Behaviour of Drill Strings
    in Curved Boreholes}, volume={73}, journal={Zeitschrift für angewandte Mathematik
    und Mechanik (ZAMM)}, author={Sextro, Walter and Schmalhorst, B}, year={1993},
    pages={255–257} }'
  chicago: 'Sextro, Walter, and B Schmalhorst. “Static Behaviour of Drill Strings
    in Curved Boreholes.” <i>Zeitschrift Für Angewandte Mathematik Und Mechanik (ZAMM)</i>
    73 (1993): 255–57.'
  ieee: W. Sextro and B. Schmalhorst, “Static Behaviour of Drill Strings in Curved
    Boreholes,” <i>Zeitschrift für angewandte Mathematik und Mechanik (ZAMM)</i>,
    vol. 73, pp. 255–257, 1993.
  mla: Sextro, Walter, and B. Schmalhorst. “Static Behaviour of Drill Strings in Curved
    Boreholes.” <i>Zeitschrift Für Angewandte Mathematik Und Mechanik (ZAMM)</i>,
    vol. 73, 1993, pp. 255–57.
  short: W. Sextro, B. Schmalhorst, Zeitschrift Für Angewandte Mathematik Und Mechanik
    (ZAMM) 73 (1993) 255–257.
date_created: 2019-04-15T07:59:49Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
intvolume: '        73'
language:
- iso: eng
page: 255-257
publication: Zeitschrift für angewandte Mathematik und Mechanik (ZAMM)
status: public
title: Static Behaviour of Drill Strings in Curved Boreholes
type: journal_article
user_id: '55222'
volume: 73
year: '1993'
...
---
_id: '8894'
abstract:
- lang: eng
  text: Dry friction is a main factor of self-sustained oscillations in dynamic systems.
    The mathematical modelling of dry friction forces result in strong nonlinear equations
    of motion. The bifurcation behaviour of a deterministic system has been investigated
    by the bifurcation theory. The stability of stationary solutions has been analyzed
    by the eigenvalues of the Jacobian. Period doublings and Hopf-bifurcations as
    well as turning points could be determined with the program package BIFPACK. Phase
    plane plots of periodic and chaotic motions have been shown for a better understanding
    of the bifurcation diagrams. Both, unstable branches and stable coexisting solutions
    have been calculated. Several jumping effects, which are typical for nonlinear
    systems, have been found.
author:
- first_name: Peter
  full_name: Stelter, Peter
  last_name: Stelter
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: 'Stelter P, Sextro W. Bifurcations in Dynamic Systems with Dry Friction. In:
    Seydel R, Schneider FW, Küpper T, Troger H, eds. <i>Bifurcation and Chaos: Analysis,
    Algorithms, Applications</i>. Vol 97. International Series of Numerical Mathematics
    / Internationale Schriftenreihe zur Numerischen Mathematik / S{\’e}rie Internationale
    d’Analyse Num{\’e}rique. Birkhäuser Basel; 1991:343-347. doi:<a href="https://doi.org/10.1007/978-3-0348-7004-7_44">10.1007/978-3-0348-7004-7_44</a>'
  apa: 'Stelter, P., &#38; Sextro, W. (1991). Bifurcations in Dynamic Systems with
    Dry Friction. In R. Seydel, F. W. Schneider, T. Küpper, &#38; H. Troger (Eds.),
    <i>Bifurcation and Chaos: Analysis, Algorithms, Applications</i> (Vol. 97, pp.
    343–347). Birkhäuser Basel. <a href="https://doi.org/10.1007/978-3-0348-7004-7_44">https://doi.org/10.1007/978-3-0348-7004-7_44</a>'
  bibtex: '@inbook{Stelter_Sextro_1991, series={International Series of Numerical
    Mathematics / Internationale Schriftenreihe zur Numerischen Mathematik / S{\’e}rie
    Internationale d’Analyse Num{\’e}rique}, title={Bifurcations in Dynamic Systems
    with Dry Friction}, volume={97}, DOI={<a href="https://doi.org/10.1007/978-3-0348-7004-7_44">10.1007/978-3-0348-7004-7_44</a>},
    booktitle={Bifurcation and Chaos: Analysis, Algorithms, Applications}, publisher={Birkhäuser
    Basel}, author={Stelter, Peter and Sextro, Walter}, editor={Seydel, R. and Schneider,
    F.W. and Küpper, T. and Troger, H.Editors}, year={1991}, pages={343–347}, collection={International
    Series of Numerical Mathematics / Internationale Schriftenreihe zur Numerischen
    Mathematik / S{\’e}rie Internationale d’Analyse Num{\’e}rique} }'
  chicago: 'Stelter, Peter, and Walter Sextro. “Bifurcations in Dynamic Systems with
    Dry Friction.” In <i>Bifurcation and Chaos: Analysis, Algorithms, Applications</i>,
    edited by R. Seydel, F.W. Schneider, T. Küpper, and H. Troger, 97:343–47. International
    Series of Numerical Mathematics / Internationale Schriftenreihe Zur Numerischen
    Mathematik / S{\’e}rie Internationale d’Analyse Num{\’e}rique. Birkhäuser Basel,
    1991. <a href="https://doi.org/10.1007/978-3-0348-7004-7_44">https://doi.org/10.1007/978-3-0348-7004-7_44</a>.'
  ieee: 'P. Stelter and W. Sextro, “Bifurcations in Dynamic Systems with Dry Friction,”
    in <i>Bifurcation and Chaos: Analysis, Algorithms, Applications</i>, vol. 97,
    R. Seydel, F. W. Schneider, T. Küpper, and H. Troger, Eds. Birkhäuser Basel, 1991,
    pp. 343–347.'
  mla: 'Stelter, Peter, and Walter Sextro. “Bifurcations in Dynamic Systems with Dry
    Friction.” <i>Bifurcation and Chaos: Analysis, Algorithms, Applications</i>, edited
    by R. Seydel et al., vol. 97, Birkhäuser Basel, 1991, pp. 343–47, doi:<a href="https://doi.org/10.1007/978-3-0348-7004-7_44">10.1007/978-3-0348-7004-7_44</a>.'
  short: 'P. Stelter, W. Sextro, in: R. Seydel, F.W. Schneider, T. Küpper, H. Troger
    (Eds.), Bifurcation and Chaos: Analysis, Algorithms, Applications, Birkhäuser
    Basel, 1991, pp. 343–347.'
date_created: 2019-04-15T07:55:30Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
doi: 10.1007/978-3-0348-7004-7_44
editor:
- first_name: R.
  full_name: Seydel, R.
  last_name: Seydel
- first_name: F.W.
  full_name: Schneider, F.W.
  last_name: Schneider
- first_name: T.
  full_name: Küpper, T.
  last_name: Küpper
- first_name: H.
  full_name: Troger, H.
  last_name: Troger
intvolume: '        97'
language:
- iso: eng
page: 343-347
publication: 'Bifurcation and Chaos: Analysis, Algorithms, Applications'
publication_identifier:
  isbn:
  - 978-3-0348-7006-1
publisher: Birkhäuser Basel
series_title: International Series of Numerical Mathematics / Internationale Schriftenreihe
  zur Numerischen Mathematik / S{\'e}rie Internationale d'Analyse Num{\'e}rique
status: public
title: Bifurcations in Dynamic Systems with Dry Friction
type: book_chapter
user_id: '55222'
volume: 97
year: '1991'
...