Design of a Test Setup for Measuring Dynamic Stiffness of Vibration Isolators

Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

In this paper, design efforts to develop a custom test setup for measuring dynamic stiffness of vibration isolators are presented. The setup is designed to conduct dynamic stiffness measurements for various static preload values and over a certain (target) frequency range. Direct Method has been selected among the methods defined by standards found in the literature. In order to investigate the effect of basic design parameters of the test setup on its overall performance, an equivalent eight degree of freedom lumped parameter model of the test setup is used which takes into account the basic dimensions and materials used for main structural components of the proposed setup design as well as the inertial characteristics of the isolators. Using the equivalent model, virtual tests are performed and the accuracy of the test setup is studied for various testing scenarios. A major work that is conducted as part of this work is to come up with a procedure that will enable tuning of the setup parameters such that the percent error on measured dynamic stiffness of various types of isolators are minimized for the case when various levels of error are present in measured displacement and force amplitudes.

Keywords

Dynamic stiffness measurement Error analysis Vibration isolator Virtual test Complex stiffness measurement 

References

  1. 1.
    Rivin EI (2003) Passive vibration isolation. New York, ASME PressGoogle Scholar
  2. 2.
    ISO 10846-2, Acoustics and vibration – laboratory measurement of vibro-acoustic transfer properties of resilient elements, Part 2: Direct method for determination of the dynamic stiffness of resilient supports for translatory motionGoogle Scholar
  3. 3.
    Dickens JD, Norwood CJ (1997) Design of a test facility for vibration isolator characterization. Acoust Aust 25(1):23–28Google Scholar
  4. 4.
    ISO 10846-1, Acoustics and vibration – laboratory measurement of vibro-acoustic transfer properties of resilient elements, Part 1: Principles and guidelinesGoogle Scholar
  5. 5.
    ISO 10846-3, Acoustics and vibration – laboratory measurement of vibro-acoustic transfer properties of resilient elements, Part 3: Indirect method for determination of the dynamic stiffness of resilient supports for translatory motionGoogle Scholar
  6. 6.
    ISO 10846-5, Acoustics and vibration – laboratory measurement of vibro-acoustic transfer properties of resilient elements, Part 5: Driving point method for determination of the low-frequency transfer stiffness of resilient supports for translatory motionGoogle Scholar
  7. 7.
    Jones David IG (2001) Handbook of viscoelastic vibration damping, 7.8.1 frequency domain response. John Wiley & Sons Inc, 432 Elizabeth Ave, Somerset, NJ, 08817, pp 247–255Google Scholar

Copyright information

© The Society for Experimental Mechanics 2014

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringMiddle East Technical UniversityAnkaraTurkey

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