An Improved Design Method for Automotive Powertrain Rubber Mounts

Abstract:

The objective of the powertrain mount design is to find the geometry which meets the desired stiffness and damping requirements. For the conventional rubber mount, which is composed of a rubber element bonded into a metal bracket, its stiffness can be predicted using FEA but the damping is evaluated by physical testing. This paper introduces a design method at which the damping coefficient of the rubber mount is to be predicted theoretically based on the assumption that the phase angle for a rubber compound is constant. Absence of physical test in this proposed new design process, the development time from concept to production is reduced.

• Periodical: Advanced Materials Research (Volume 853)
• Pages: 520-525
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.853.520
• Online since: December 2013
• Authors: Min Lu*
• Keywords: Dynamic Stiffness, Engine Mount

References

[1] P.B. Lindley, Engineering Design with Natural Rubber, The Malaysian Rubber Producers' Research Association, (1992).

[2] R. Paige, FEA in the Design Process of Rubber Bushings, 2002 ABAQUS Users' Conference.

[3] W.T. Thomson, Theory of Vibration with Applications, 3rd Edition, Princice Hall, (1972).