Analysis of the Forced Vibration of Two Bolted Half-Pipes with Extended Friction Contacts

The present paper deals with the forced vibration analysis of a test structure. The test structure consists of two parts, an upper and a lower half pipe, joint in two bolted flanges which represent the extended friction contacts. Depending on the clamping loads different normal pressure distributions can be established in the contact interfaces. Since the test structure is loaded with a harmonic external force relative displacements occur in the contact interface. This leads to microslip effects affecting the dynamic behaviour. The experimental validation of the calculation method accounting for these effects is shown by comparing measured and calculated frequency response functions (FRF). ({\^A}{\copyright} 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)