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Reduction of Noise and Vibration in Vehicles by an Appropriate Engine Mount System and Active Absorbers
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English
Abstract
The ride and noise behavior of a vehicle is significantly affected by vibration transferred from the engine to the chassis through the engine mounts. In this paper conception and design strategies for engine mount systems based upon calculation and experimental methods are discussed. Analyses for static and dynamic engine loads and for idle shake vibrations are presented. The finite element analysis is applied to optimize a mount's rubber spring geometry. Furthermore, the role of the transfer path analysis in the optimization of an engine mount system is illustrated. Passive and semi-active engine mounts that significantly improve the isolation of the idle shake vibration will be discussed. Finally, fully active vibration absorbers which can be applied to solve noise problems, even at a late stage of a new car development program will be presented.
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Authors
Citation
Müller, M., Eckel, H., Leibach, M., and Bors, W., "Reduction of Noise and Vibration in Vehicles by an Appropriate Engine Mount System and Active Absorbers," SAE Technical Paper 960185, 1996, https://doi.org/10.4271/960185.Also In
Advances in Component Designs for Noise and Vibration Control
Number: SP-1147; Published: 1996-02-01
Number: SP-1147; Published: 1996-02-01
References
- Müller M. Siebler T.W. “Methods for the Reduction of Noise and Vibration in Vehicles Using an Appropiate Engine Mount System” SAE-paper 942414E 1994
- Müller M. Weltin U. “Vibration compensation with Active Engine Mounts” Düsseldorf, Germany May 6-7 1993
- Müller M. Siebler T.W. Gärtner H. “Simulation of Vibrating Vehicle Structures as Part of the Design Process of Engine Mount Systems and Vibration Absorbers” SAE-paper 1995
- Mitschke M. “Vehicle Dynamic, Volume B” 2 Springer Verlag Berlin Germany 1984
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- Hornberger K. Guth W. “Numerical Computations for Lifetime Analysis of Elastomeric Components in the Automotive Industry” VDI report 1153 Numerical Analysis in Automotive Engineering VDI Verlag Düsseldorf, Germany 1984
- Müller M. Weltin U. Law D. Roberts M.M. Siebler T.W. “The Effect of Engine Mounts on the Noise and Vibration Behavior of Vehicles” SAE-paper 940607 1994
- van der Linden P.J.G. Fun J.K. “Using Mechanical-Acoustic Reciprocity for Diagnosis of Structure Borne Sound in Vehicles” SAE-paper 931340 1993
- Weltin U. Müller M. “Conception, Design and Experiment Based Optimization of Vehicle Engine Mountings” Soundengineering - developments in vehicle acoustics tailored to customer needs Vo Quang-Hue expert Verlag Renningen Malmsheim, Germany 3-8169-1177-3 1994