Discontinuous compliance nonlinearities in the hydraulic engine mount

  • He S
  • Singh R
  • 4


    Mendeley users who have this article in their library.
  • 12


    Citations of this article.


In this article, we identify and quantify discontinuous compliance nonlinearities of hydraulic engine mounts. First, asymmetric nonlinearities are identified in transient step-up and step-down responses by using a quasi-linear mount model with parameters that are estimated from measured dynamic stiffness data. Second, an improved multistaged top chamber compliance model is developed which confirms the existence of highly nonlinear region(s) during the step transitions as well as during the decaying transients. Third, new semi-analytical solutions for both step-up and step-down responses have been successfully constructed by using a linear time-varying system formulation that incorporates time-varying compliance. Fourth, a mean displacement-dependent model is proposed for the bottom chamber compliance. It clearly explains the stiffening effect in measurements under higher mean loads. Finally, competing quasi-linear, linear time-varying and nonlinear formulations are comparatively evaluated for step and realistic excitations. Transient measurements confirm the validity of models, as well as their applicability and limitations. © 2007 Elsevier Ltd. All rights reserved.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free