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	Dynamic analysis and design calculation methods for powertrain mounting systems
	Shangguan, W. -B. ; Zhao, Y.
	2010-05-06 ; 2010-05-06
关键词	automotive powertrain mounting systems hydraulic engine mounts motion and vibration control of a powertrain analysis and calculation methods ENGINE MOUNTS OPTIMIZATION Engineering, Mechanical Transportation Science & Technology
中文摘要	A method for dynamic analysis and design calculation of a Powertrain Mounting System (PMS) including Hydraulic Engine Mounts (HEM) is developed with the aim of controlling powertrain motion and reducing low-frequency vibration in pitch and bounce modes. Here the pitch mode of the powertrain is defined as the mode rotating around the crankshaft of an engine for a transversely mounted powertrain. The powertrain is modeled as a rigid body connected to rigid ground by rubber mounts and/or HEMs. A mount is simplified as a three-dimensional spring with damping elements in its Local Coordinate System (LCS). The relation between force and displacement of each mount in its LCS is usually nonlinear and is simplified as piecewise linear in five ranges in this paper. An equation for estimating displacements of the powertrain center of gravity (C.G.) under static or quasi-static load is developed using Newton's second law, and an iterative algorithm is presented to calculate the displacements. Also an equation for analyzing the dynamic response of the powertrain under ground and engine shake excitations is derived using Newton's second law. Formulae for calculating reaction forces and displacements at each mount are presented. A generic PMS with four rubber mounts or two rubber mounts and two HEMs are used to validate the dynamic analysis and design calculation methods. Calculated displacements of the powertrain C.G. under static or quasi-static loads show that a powertrain motion can meet the displacement limits by properly selecting the stiffness and coordinates of the tuning points of each mount in its LCS using the calculation methods developed in this paper. Simulation results of the dynamic responses of a powertrain C.G and the reaction forces at mounts demonstrate that resonance peaks can be reduced effectively with HEMs designed on the basis of the proposed methods.
语种	英语 ; 英语
出版者	KOREAN SOC AUTOMOTIVE ENGINEERS ; SEOUL ; TEHERAN OFFICE BLDG #809, 707-38 YEOKSAM-DONG, GANGNAM-GU, SEOUL 135-080, SOUTH KOREA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/9241]
专题	清华大学
推荐引用方式 GB/T 7714	Shangguan, W. -B.,Zhao, Y.. Dynamic analysis and design calculation methods for powertrain mounting systems[J],2010, 2010.
APA	Shangguan, W. -B.,&Zhao, Y..(2010).Dynamic analysis and design calculation methods for powertrain mounting systems..
MLA	Shangguan, W. -B.,et al."Dynamic analysis and design calculation methods for powertrain mounting systems".(2010).

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