Title: Robustness of mount systems for idle NVH, Part II: pendulum mounts

Authors: Mohammad Sirafi, Yin-Ping Chang, Mohamad S. Qatu

Addresses: Oakland University, Rochester Hills, MI, USA. ' Oakland University, Rochester Hills, MI, USA. ' Ford Motor Co, Dearborn, MI, USA

Abstract: The pendulum mounting strategy in east-west powerplant configurations is based on two major mounts, one at the engine side and the other at the transmission side and one or two roll-restrictors. This system is used in many of today|s vehicles, particularly those with lighter powertrains. This paper discusses the variability of the modal decoupling strategy as a function of variations of the powertrain pendulum mount stiffness, location and inertia properties. In addition, this paper discusses impact of mass and inertia variations. A six degrees of freedom model is used in the analysis. Detailed design of experiment studies are described.

Keywords: robustness; idle NVH; powertrain; mount design; engine configurations; pendulum mounts; modal separation; mount location; mount inertia; mount stiffness; design of experiments; DOE; vehicle vibration; vehicle noise; harshness; mass.

DOI: 10.1504/IJVNV.2006.012783

International Journal of Vehicle Noise and Vibration, 2006 Vol.2 No.4, pp.334 - 340

Published online: 14 Mar 2007 *

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