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Three dimensional modeling and dynamic analysis of four-wheel-steering vehicles

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Abstract

The paper presents a nonlinear dynamic model of 9 degrees of freedom for four-wheel-steering vehicles. Compared with those in previous studies, this model includes the pitch and roll of the vehicle body, the motion of 4 wheels in the accelerating or braking process, the nonlinear coupling of vehicle body and unsprung part, as well as the air drag and wind effect. As a result, the model can be used for the analysis of various maneuvers of the four-wheel-steering vehicles. In addition, the previous models can be considered as a special case of this model. The paper gives some case studies for the dynamic performance of a four-wheel-steering vehicle under step input and saw-tooth input of steering angle applied on the front wheels, respectively.

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Authors and Affiliations

  1. Institute of Vibration Engineering Research, Nanjing University of Aeronautics and Astronautics, 210016, Nanjing, China

    Hu Haiyan

  2. Department of Mechanics, South China University of Science and Technology, 510641, Guangzhou, China

    Han Qiang

Authors
  1. Hu Haiyan
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  2. Han Qiang
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Additional information

The project supported by the National Natural Science Foundation of China (59625511)

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Haiyan, H., Qiang, H. Three dimensional modeling and dynamic analysis of four-wheel-steering vehicles. Acta Mech Sinica 19, 79–88 (2003). https://doi.org/10.1007/BF02487456

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  • DOI: https://doi.org/10.1007/BF02487456

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