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A Simple, Cost Effective, Method of Evaluating Bump Steer and Brake Steer, and Achieving Correlation with ADAMS Analysis
Technical Paper
2008-01-0227
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper proposes a cost effective method, with simple techniques, to evaluate Bump Steer and Brake Steer on a rigid axle vehicle under dynamic conditions. A relationship between calculated values, measured values and a subjective assessment of the vehicle lateral deviation is established. An array, of inter-relationship of the parameters such as offset of steering arm, draglink length, front spring stiffness, height of spring hanger bracket is done. Percentage of influence of the parameter change on the performance of the vehicle is evaluated and standard statistical analysis is used to arrive at inter-relationship of various parameters and ranking of their influence on lateral deviation of the vehicle under braking is established, there by resulting in reduction in iterative process. The results obtained display a good correlation with ADAMS Analysis to the tune of 90% and are in agreement with subjective assessment.
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Authors
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Citation
Upadhyay, V., Gopalakrishna, K., and Kshirsagar, A., "A Simple, Cost Effective, Method of Evaluating Bump Steer and Brake Steer, and Achieving Correlation with ADAMS Analysis," SAE Technical Paper 2008-01-0227, 2008, https://doi.org/10.4271/2008-01-0227.Also In
References
- Durstine John W. et. al. “The Truck Steering System From Hand Wheel to Road Wheel” SAE Technical Paper SP-374 Truck Operators, Ford Motors Jan 1973
- MSC-Adams 2003 R1 Help Manual