The Cut Beam Benchmark System: Developing Measurement Techniques for Nonlinear Damping and Stiffness in Frictional Interfaces

Abstract : This chapter deals with the damping caused by friction in joints. A new test bench is presented and justified by comparisons made with devices described in the literature. The purpose of this academic bench is to measure the damping induced by partial slip and friction in a planar joint. A new method for the so-called stopped-sine excitation was developed. It allows more precise monitoring of the evolution of the vibration frequency and damping of nonlinear modes, and it allows uncoupling normal static and dynamic tangential forces. This method is associated with piezoelectric exciters for greater efficiency when stopping excitation. A large number of experimental results are presented and discussed, which are used to characterize the damping induced by micro-sliding in the bonds.
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Submitted on : Tuesday, September 19, 2017 - 10:38:20 AM
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Jean-Luc Dion, Nicolas Peyret, Gaël Chevallier. The Cut Beam Benchmark System: Developing Measurement Techniques for Nonlinear Damping and Stiffness in Frictional Interfaces. The Mechanics of Jointed Structures, Springer, Cham, pp.73-89, 2018, ⟨10.1007/978-3-319-56818-8_7⟩. ⟨hal-01589829⟩

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