Browse Publications Technical Papers 2004-01-1548
2004-03-08

Non-Linear Analysis of Tunable Compression Bushing for Stabilizer Bars 2004-01-1548

Stabilizer bars in a suspension system are supported with bushings by a frame structure. To prevent the axial movement of the stabilizer bar within the bushing, several new stabilizer bar-bushing systems have been developed. The new systems introduce permanent compressive force between the bar and the bushing thereby preventing the relative movement of the bar within the bushing. This mechanical bond between the bar and the bushing can eliminate features such as grippy flats, collars etc. In addition, by controlling the compression parameters, the properties of the bushing such as bushing rates can be tuned and hence can be used to improve the ride and handling performance of the vehicle. In this paper, nonlinear CAE tools are used to evaluate one such compressively loaded bushing system. Computational difficulties associated with modeling such a system are discussed. Effects of the compression parameters such as compression length and the compression depth on bushing rates are discussed. Compression parameters are shown to be effective in tuning the bushing rates of the system.

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