| SIMULATION STUDY ON VEHICLE RIDE COMFORT BASED ON FINITE
ELEMENT MODEL AND PSEUDO-EXCITATION METHOD |
| Wenzhu Wang 1, Jie Li 2, Gang Liu 1, Jun Wei 3, Zhenwei Zhang 4 |
1School of Mechatronics Engineering, Shenyang Aerospace University
2State Key Laboratory of Automotive Simulation and Control, Jilin University
3Project Management Department, Geely Automotive R&D Technology Center
4Chongqing Changan Automobile Co., Ltd. |
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| ABSTRACT |
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This research aims to develop a new vehicle ride comfort simulation technology. The basic principle of
pseudo-excitation method (PEM) is summarized, and the specific method of PEM is proposed to solve the finite element
model (FEM) of vehicle. Taking a simple 7-degree-of-freedom (DOF) car spatial model as an example, the traditional and
new methods are compared. Simulation results show that they are completely consistent, thereby verifying the effectiveness
of the new method. At the same time, through the simulation process, the new method is simpler and more efficient without
deducing complex mathematical formulas and software programming. Finally, the ride comfort simulation of a car’s complex
FEM is performed. FEM can consider the parts of the vehicle as elastic bodies and closer to the real vehicle. The PEM
transforms random vibration analysis into simple harmonic vibration analysis, which improves the efficiency of the solution
greatly. Therefore, the combination of the FEM and the PEM cannot only solve the problem of model accuracy but also the
problem of solving efficiency, which has strong practical engineering application value. |
| Key Words:
Ride comfort, Finite element model, Pseudo-excitation method, Harmonic response analysis |
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Corresponding Author.
Jie Li , Email. 
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