---
_id: '9519'
abstract:
- lang: eng
  text: 'Several positioning tasks demand translatory drive instead of rotary motion.
    To achieve drives that are capable e.g. to drive the sunroof of a car or to lift
    a car''s window, multiple miniaturized motors can be combined. But in this case
    many other questions arise: the electromechanical behavior of the individual motors
    differs slightly, the motor characteristics are strongly dependent on the driving
    parameters and the driven load, many applications need some extra power for special
    cases like overcoming higher forces periodically. Thus, the bundle of motors has
    to act well organized and controlled to get an optimized drive that is not oversized
    and costly.'
author:
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Maik
  full_name: Mracek, Maik
  last_name: Mracek
- first_name: Jörg
  full_name: Wallaschek, Jörg
  last_name: Wallaschek
- first_name: Piotr
  full_name: Vasiljev, Piotr
  last_name: Vasiljev
citation:
  ama: 'Hemsel T, Mracek M, Wallaschek J, Vasiljev P. A novel approach for high power
    ultrasonic linear motors. In: <i>Ultrasonics Symposium, 2004 IEEE</i>. Vol 2.
    ; 2004:1161-1164. doi:<a href="https://doi.org/10.1109/ULTSYM.2004.1417988">10.1109/ULTSYM.2004.1417988</a>'
  apa: Hemsel, T., Mracek, M., Wallaschek, J., &#38; Vasiljev, P. (2004). A novel
    approach for high power ultrasonic linear motors. In <i>Ultrasonics Symposium,
    2004 IEEE</i> (Vol. 2, pp. 1161–1164). <a href="https://doi.org/10.1109/ULTSYM.2004.1417988">https://doi.org/10.1109/ULTSYM.2004.1417988</a>
  bibtex: '@inproceedings{Hemsel_Mracek_Wallaschek_Vasiljev_2004, title={A novel approach
    for high power ultrasonic linear motors}, volume={2}, DOI={<a href="https://doi.org/10.1109/ULTSYM.2004.1417988">10.1109/ULTSYM.2004.1417988</a>},
    number={Vol.2}, booktitle={Ultrasonics Symposium, 2004 IEEE}, author={Hemsel,
    Tobias and Mracek, Maik and Wallaschek, Jörg and Vasiljev, Piotr}, year={2004},
    pages={1161–1164} }'
  chicago: Hemsel, Tobias, Maik Mracek, Jörg Wallaschek, and Piotr Vasiljev. “A Novel
    Approach for High Power Ultrasonic Linear Motors.” In <i>Ultrasonics Symposium,
    2004 IEEE</i>, 2:1161–64, 2004. <a href="https://doi.org/10.1109/ULTSYM.2004.1417988">https://doi.org/10.1109/ULTSYM.2004.1417988</a>.
  ieee: T. Hemsel, M. Mracek, J. Wallaschek, and P. Vasiljev, “A novel approach for
    high power ultrasonic linear motors,” in <i>Ultrasonics Symposium, 2004 IEEE</i>,
    2004, vol. 2, no. Vol.2, pp. 1161–1164.
  mla: Hemsel, Tobias, et al. “A Novel Approach for High Power Ultrasonic Linear Motors.”
    <i>Ultrasonics Symposium, 2004 IEEE</i>, vol. 2, no. Vol.2, 2004, pp. 1161–64,
    doi:<a href="https://doi.org/10.1109/ULTSYM.2004.1417988">10.1109/ULTSYM.2004.1417988</a>.
  short: 'T. Hemsel, M. Mracek, J. Wallaschek, P. Vasiljev, in: Ultrasonics Symposium,
    2004 IEEE, 2004, pp. 1161–1164.'
date_created: 2019-04-29T08:12:06Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1109/ULTSYM.2004.1417988
intvolume: '         2'
issue: Vol.2
keyword:
- drives
- electromechanical effects
- linear motors
- ultrasonic motors
- car sunroof
- car window
- electromechanical behavior
- high power ultrasonic linear motors
- multiple miniaturized motors
- positioning tasks
- translatory drive
- Costs
- Electromagnetic forces
- Frequency
- Laboratories
- Manufacturing
- Mechatronics
- Micromotors
- Ultrasonic imaging
- Vibrations
- Voltage
language:
- iso: eng
page: 1161-1164
publication: Ultrasonics Symposium, 2004 IEEE
publication_identifier:
  issn:
  - 1051-0117
quality_controlled: '1'
status: public
title: A novel approach for high power ultrasonic linear motors
type: conference
user_id: '55222'
volume: 2
year: '2004'
...
---
_id: '8926'
abstract:
- lang: eng
  text: Piezoelectric transformers are well known since the publication of some patent
    applications at the end of the 1950s. But until today their only business use
    lies in the field of backlighting systems for LCDs. Due to key features as light-weight,
    flatness, high step-up at low volume and high efficiency piezoelectric transformers
    should be usable in a much broader range of applications. This contribution returns
    to mind their operating principle, shows how to model and to develop such devices
    as well as give some aspects for development trends that will lead to further
    applications.
author:
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Walter
  full_name: Littmann, Walter
  last_name: Littmann
- first_name: Jörg
  full_name: Wallaschek, Jörg
  last_name: Wallaschek
citation:
  ama: 'Hemsel T, Littmann W, Wallaschek J. Piezoelectric transformers - state of
    the art and development trends. In: <i>Ultrasonics Symposium, 2002. Proceedings.
    2002 IEEE</i>. Vol 1. ; 2002:645-648. doi:<a href="https://doi.org/10.1109/ULTSYM.2002.1193485">10.1109/ULTSYM.2002.1193485</a>'
  apa: Hemsel, T., Littmann, W., &#38; Wallaschek, J. (2002). Piezoelectric transformers
    - state of the art and development trends. In <i>Ultrasonics Symposium, 2002.
    Proceedings. 2002 IEEE</i> (Vol. 1, pp. 645–648). <a href="https://doi.org/10.1109/ULTSYM.2002.1193485">https://doi.org/10.1109/ULTSYM.2002.1193485</a>
  bibtex: '@inproceedings{Hemsel_Littmann_Wallaschek_2002, title={Piezoelectric transformers
    - state of the art and development trends}, volume={1}, DOI={<a href="https://doi.org/10.1109/ULTSYM.2002.1193485">10.1109/ULTSYM.2002.1193485</a>},
    number={vol.1}, booktitle={Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE},
    author={Hemsel, Tobias and Littmann, Walter and Wallaschek, Jörg}, year={2002},
    pages={645–648} }'
  chicago: Hemsel, Tobias, Walter Littmann, and Jörg Wallaschek. “Piezoelectric Transformers
    - State of the Art and Development Trends.” In <i>Ultrasonics Symposium, 2002.
    Proceedings. 2002 IEEE</i>, 1:645–48, 2002. <a href="https://doi.org/10.1109/ULTSYM.2002.1193485">https://doi.org/10.1109/ULTSYM.2002.1193485</a>.
  ieee: T. Hemsel, W. Littmann, and J. Wallaschek, “Piezoelectric transformers - state
    of the art and development trends,” in <i>Ultrasonics Symposium, 2002. Proceedings.
    2002 IEEE</i>, 2002, vol. 1, no. vol.1, pp. 645–648.
  mla: Hemsel, Tobias, et al. “Piezoelectric Transformers - State of the Art and Development
    Trends.” <i>Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE</i>, vol. 1, no.
    vol.1, 2002, pp. 645–48, doi:<a href="https://doi.org/10.1109/ULTSYM.2002.1193485">10.1109/ULTSYM.2002.1193485</a>.
  short: 'T. Hemsel, W. Littmann, J. Wallaschek, in: Ultrasonics Symposium, 2002.
    Proceedings. 2002 IEEE, 2002, pp. 645–648.'
date_created: 2019-04-15T10:18:15Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
doi: 10.1109/ULTSYM.2002.1193485
intvolume: '         1'
issue: vol.1
keyword:
- piezoelectric devices
- reviews
- transformers
- backlighting systems
- flatness
- high efficiency piezoelectric transformers
- high step-up
- light-weight
- low volume
- operating principle
- piezoelectric transformers
- Circuits
- Costs
- Electromagnetic devices
- Electromagnetic fields
- Mechanical energy
- Piezoelectric materials
- Power electronics
- Switching frequency
- Transformers
- Vibrations
language:
- iso: eng
page: 645-648
publication: Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE
publication_identifier:
  issn:
  - 1051-0117
status: public
title: Piezoelectric transformers - state of the art and development trends
type: conference
user_id: '55222'
volume: 1
year: '2002'
...
---
_id: '39521'
abstract:
- lang: eng
  text: Investigates the integration of an interactive constraint solver into an existing
    2D real-time animation environment in order to achieve a better observability,
    traceability and stability of the individual graphical objects. We present two
    approaches for assigning constraints to the objects. The first approach assigns
    constraints to the objects when they are created, keeping them stable during their
    entire life-time. The second approach dynamically changes constraints before the
    computation of each frame. The investigation is based on our practical experience
    with the complete visual programming language Pictorial Janus and the parallel
    constraint solver Parcon.
author:
- first_name: P.
  full_name: Griebel, P.
  last_name: Griebel
- first_name: Georg
  full_name: Lehrenfeld, Georg
  last_name: Lehrenfeld
- first_name: Wolfgang
  full_name: Müller, Wolfgang
  id: '16243'
  last_name: Müller
- first_name: C.
  full_name: Tahedl, C.
  last_name: Tahedl
- first_name: H.
  full_name: Uhr, H.
  last_name: Uhr
citation:
  ama: 'Griebel P, Lehrenfeld G, Müller W, Tahedl C, Uhr H. Integrating a Constraint
    Solver into a Real-Time Animation Environment. In: <i>Proceedings of the 1996
    IEEE Symposium on Visual Languages</i>. ; 1996. doi:<a href="https://doi.org/10.1109/VL.1996.545262">10.1109/VL.1996.545262</a>'
  apa: Griebel, P., Lehrenfeld, G., Müller, W., Tahedl, C., &#38; Uhr, H. (1996).
    Integrating a Constraint Solver into a Real-Time Animation Environment. <i>Proceedings
    of the 1996 IEEE Symposium on Visual Languages</i>. <a href="https://doi.org/10.1109/VL.1996.545262">https://doi.org/10.1109/VL.1996.545262</a>
  bibtex: '@inproceedings{Griebel_Lehrenfeld_Müller_Tahedl_Uhr_1996, place={Boulder
    CO}, title={Integrating a Constraint Solver into a Real-Time Animation Environment},
    DOI={<a href="https://doi.org/10.1109/VL.1996.545262">10.1109/VL.1996.545262</a>},
    booktitle={Proceedings of the 1996 IEEE Symposium on Visual Languages}, author={Griebel,
    P. and Lehrenfeld, Georg and Müller, Wolfgang and Tahedl, C. and Uhr, H.}, year={1996}
    }'
  chicago: Griebel, P., Georg Lehrenfeld, Wolfgang Müller, C. Tahedl, and H. Uhr.
    “Integrating a Constraint Solver into a Real-Time Animation Environment.” In <i>Proceedings
    of the 1996 IEEE Symposium on Visual Languages</i>. Boulder CO, 1996. <a href="https://doi.org/10.1109/VL.1996.545262">https://doi.org/10.1109/VL.1996.545262</a>.
  ieee: 'P. Griebel, G. Lehrenfeld, W. Müller, C. Tahedl, and H. Uhr, “Integrating
    a Constraint Solver into a Real-Time Animation Environment,” 1996, doi: <a href="https://doi.org/10.1109/VL.1996.545262">10.1109/VL.1996.545262</a>.'
  mla: Griebel, P., et al. “Integrating a Constraint Solver into a Real-Time Animation
    Environment.” <i>Proceedings of the 1996 IEEE Symposium on Visual Languages</i>,
    1996, doi:<a href="https://doi.org/10.1109/VL.1996.545262">10.1109/VL.1996.545262</a>.
  short: 'P. Griebel, G. Lehrenfeld, W. Müller, C. Tahedl, H. Uhr, in: Proceedings
    of the 1996 IEEE Symposium on Visual Languages, Boulder CO, 1996.'
date_created: 2023-01-24T11:56:25Z
date_updated: 2023-01-24T11:56:30Z
department:
- _id: '672'
doi: 10.1109/VL.1996.545262
keyword:
- Animation
- Layout
- Computer languages
- Visualization
- Observability
- Stability
- Runtime
- Costs
- Graphics
- Hardware
language:
- iso: eng
place: Boulder CO
publication: Proceedings of the 1996 IEEE Symposium on Visual Languages
publication_identifier:
  isbn:
  - 0-8186-7508-X
status: public
title: Integrating a Constraint Solver into a Real-Time Animation Environment
type: conference
user_id: '5786'
year: '1996'
...
---
_id: '39526'
abstract:
- lang: eng
  text: The main goal of the article is to evaluate the suitability of visual programming
    languages, i.e., Pictorial Janus (K. Kahn and V. Saraswat, 1990), for the modeling
    of complex systems and their control strategies. These systems can be seen as
    networks of communicating objects. Objects select strategies for suitable actions
    based on incoming messages. Our field of investigation is in computer integrated
    manufacturing considering the example of a car manufacturing cell. This color
    sorting assembly buffer (CSAB) schedules jobs in queues. The jobs represent car
    bodies scheduled in feeder lines for the enameling. Feeder lines collect raw bodies
    to blocks. Blocks are bodies which are to be enameled by the same color. This
    organization decreases the cost of expensive change-over-times when changing colors
    at the enamelling. Blocks of bodies are dislocated from the queue and enameled
    successively. Contradictory system goals, such as minimizing color changes and
    preserving the sequence of incoming jobs, have to be regarded by appropriate control
    strategies. Due to the complexity of this (NP complete) problem and to real time
    requirements for online control there are no optimal strategies on hand. Consequently,
    suitable heuristics have to be developed. Often they are designed applying a trial-and-error
    method. A modeling framework has to support the rapid prototyping of these systems
    as well as an expressive end user oriented representation. Both are essential
    requirements since end users need other visualization techniques than experienced
    designers due to their different knowledge and interests.
author:
- first_name: Christian
  full_name: Geiger, Christian
  last_name: Geiger
- first_name: R.
  full_name: Hunstock, R.
  last_name: Hunstock
- first_name: Georg
  full_name: Lehrenfeld, Georg
  last_name: Lehrenfeld
- first_name: Wolfgang
  full_name: Müller, Wolfgang
  id: '16243'
  last_name: Müller
- first_name: 'J. '
  full_name: 'Quintanilla, J. '
  last_name: Quintanilla
- first_name: 'C. '
  full_name: 'Tahedl, C. '
  last_name: Tahedl
- first_name: A.
  full_name: Weber, A.
  last_name: Weber
citation:
  ama: 'Geiger C, Hunstock R, Lehrenfeld G, et al. Visual Modeling and 3D-Representation
    with a Complete Visual Programming Language --- A Case Study in Manufacturing.
    In: <i>Proceedings of the 1996 IEEE Symposium on Visual Languages</i>. ; 1996.
    doi:<a href="https://doi.org/10.1109/VL.1996.545302">10.1109/VL.1996.545302</a>'
  apa: Geiger, C., Hunstock, R., Lehrenfeld, G., Müller, W., Quintanilla, J., Tahedl,
    C., &#38; Weber, A. (1996). Visual Modeling and 3D-Representation with a Complete
    Visual Programming Language --- A Case Study in Manufacturing. <i>Proceedings
    of the 1996 IEEE Symposium on Visual Languages</i>. <a href="https://doi.org/10.1109/VL.1996.545302">https://doi.org/10.1109/VL.1996.545302</a>
  bibtex: '@inproceedings{Geiger_Hunstock_Lehrenfeld_Müller_Quintanilla_Tahedl_Weber_1996,
    place={Boulder, CO, USA}, title={Visual Modeling and 3D-Representation with a
    Complete Visual Programming Language --- A Case Study in Manufacturing}, DOI={<a
    href="https://doi.org/10.1109/VL.1996.545302">10.1109/VL.1996.545302</a>}, booktitle={Proceedings
    of the 1996 IEEE Symposium on Visual Languages}, author={Geiger, Christian and
    Hunstock, R. and Lehrenfeld, Georg and Müller, Wolfgang and Quintanilla, J.  and
    Tahedl, C.  and Weber, A.}, year={1996} }'
  chicago: Geiger, Christian, R. Hunstock, Georg Lehrenfeld, Wolfgang Müller, J.  Quintanilla,
    C.  Tahedl, and A. Weber. “Visual Modeling and 3D-Representation with a Complete
    Visual Programming Language --- A Case Study in Manufacturing.” In <i>Proceedings
    of the 1996 IEEE Symposium on Visual Languages</i>. Boulder, CO, USA, 1996. <a
    href="https://doi.org/10.1109/VL.1996.545302">https://doi.org/10.1109/VL.1996.545302</a>.
  ieee: 'C. Geiger <i>et al.</i>, “Visual Modeling and 3D-Representation with a Complete
    Visual Programming Language --- A Case Study in Manufacturing,” 1996, doi: <a
    href="https://doi.org/10.1109/VL.1996.545302">10.1109/VL.1996.545302</a>.'
  mla: Geiger, Christian, et al. “Visual Modeling and 3D-Representation with a Complete
    Visual Programming Language --- A Case Study in Manufacturing.” <i>Proceedings
    of the 1996 IEEE Symposium on Visual Languages</i>, 1996, doi:<a href="https://doi.org/10.1109/VL.1996.545302">10.1109/VL.1996.545302</a>.
  short: 'C. Geiger, R. Hunstock, G. Lehrenfeld, W. Müller, J. Quintanilla, C. Tahedl,
    A. Weber, in: Proceedings of the 1996 IEEE Symposium on Visual Languages, Boulder,
    CO, USA, 1996.'
date_created: 2023-01-24T11:58:56Z
date_updated: 2023-01-24T11:59:01Z
department:
- _id: '672'
doi: 10.1109/VL.1996.545302
keyword:
- Computer integrated manufacturing
- Job shop scheduling
- Processor scheduling
- Computer languages
- Control system synthesis
- Computer aided manufacturing
- Sorting
- Assembly
- Costs
- Control systems
language:
- iso: eng
place: Boulder, CO, USA
publication: Proceedings of the 1996 IEEE Symposium on Visual Languages
publication_identifier:
  isbn:
  - 0-8186-7508-X
status: public
title: Visual Modeling and 3D-Representation with a Complete Visual Programming Language
  --- A Case Study in Manufacturing
type: conference
user_id: '5786'
year: '1996'
...