Identification of Forces Transmitted onto Car Body Through Rubber Bushings in Suspension System Under Driving Conditions

Paper #:
  • 1999-01-1841

Published:
  • 1999-05-17
Citation:
Chae, C., Lee, J., Kim, K., Lim, J. et al., "Identification of Forces Transmitted onto Car Body Through Rubber Bushings in Suspension System Under Driving Conditions," SAE Technical Paper 1999-01-1841, 1999, https://doi.org/10.4271/1999-01-1841.
Pages:
11
Abstract:
This paper presents a study on using rubber bushing as a sensor for the identification of forces transmitted onto the car body. The method starts from the idea that the transmission forces can be related to the deformation of the rubber bushing multiplied by its stiffness. Deformation of the rubber bushing is estimated from relative vibrations across the bushing. Simple theories are presented to deal with modeling of the rubber bushing and processing of the vibration mesurements on the link and car body to identify the transmission forces. Then, validity of the proposed approach is shown by applications to a suspension system under several driving conditions.
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