Construction and Study of Multi-DOF Automobile Dynamic Model

Author(s): 
Y. J. Zheng†, Y. Feng†,S. Joshi‡

Affiliation(s): 
†Zhejiang Technical Institue of Economic, Hangzhou, 310018, China, 
‡Department of Crop Physiology, University of Agricultural Sciences GKVK, Bengaluru, India

Cite this paper
Y. J. Zheng, Y. Feng, S. Joshi, “Construction and Study of Multi-DOF Automobile Dynamic Model”, Journal of Mechanical Engineering Research and Developments, vol. 39, no. 1, pp. 187-196, 2016. DOI: 10.7508/jmerd.2016.01.026

ABSTRACT: As the demand of people to vehicle performance is becoming more and more higher, the study to vehicle dynamics has been developed rapidly, and the derivation of vehicle model is becoming more and more mature in various conditions. The main content of this paper is to derive seventeen DOF vehicle model. The derived differential equation is the multi-state variable chemosynthesis differential equations, if use the ordinary solving method is time consuming, which can not meet the requirements of real-time simulation. This paper uses the iterative solution method, that is first according to the dynamic equation and initial conditions to solve the state variable derivation, namely the acceleration, then according to the time step to solve the displacement (angular displacement) and velocity (angular velocity), and then substitute the displacement and velocity of the last time step to the differential equation to solve the next step length acceleration, so iterative calculations to solve the vehicle motion status of the entire simulation time. Due to it is not solve differential equations and there are some simple operations, so the solution rate is high and can achieve the requirements of real-time simulation.

Keywords : Automobile; Vehicle model; Simulation; Experiment

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