Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Dynamic modeling of passive hydraulic engine mounts
Submission Author:
Flávio Yukio Watanabe , SP
Co-Authors:
Flávio Yukio Watanabe, Guilherme Oliveira Miguel
Presenter: Guilherme Oliveira Miguel
doi://10.26678/ABCM.COBEM2017.COB17-1981
Abstract
Hydraulic engine mounts are used in the automotive industry and are designed to support the weight of the engine and to isolate engine and chassis from the high frequency vibration caused by engine disturbance forces and low frequency vibration caused by road irregularities. This paper concerns linear and nonlinear modeling of three types of passive hydraulic engine mounts with different flow passage mechanisms. The linear model of a floatingdecoupler and inertia track hydraulic mount is presented and compared with a simple nonlinear decoupler model. The dynamic models and behavior of these supporting and damping systems are compared in time and frequency responses. Numerical models were implemented in Matlab/Simulink utilizing lumped parameters. The results show the complexity involving the modeling of such systems and some hysteresis behavior presented in nonlinear systems.
Keywords
hydraulic engine mounts, Vehicle Dynamics, linear modeling, nonlinear modeling
