吉林大学学报(工学版) ›› 2012, Vol. 42 ›› Issue (01): 1-6.

• paper • Previous Articles     Next Articles

Virtual tuning of shock absorber characteristics based on vehicle dynamic performances

GUO Kong-hui, GUO Yao-hua   

  1. State Key Laboratory of Automobile Simulation and Control, Jilin University, Changchun 130022, China
  • Received:2010-10-12 Online:2012-01-01 Published:2012-01-01

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Abstract:

To optimize the damping characteristics of the vehicle, a dynamic model with lumped parameters was built for the shock absorber to reflect physical effects of its valve systems and it was embedded in an E-Class vehicle model of CarsimTM using the S-Function. Taking the vehicle dynamic performances as the optimization objectives, the front and rear axle damping characteristics of the vehicle were tuned using the non-dominated sorting genetic algorithm(NSGA-Ⅱ)under frequency sweep conditions. The computation results show that vehicle dynamic performances concerned are grealty improved after virtual tuning of the shock absorber.

Key words: vehicle engineering, shock absorber dynamic model, non-dominated sorting genetic algorithm(NSGA-II), virtual tuning, vehicle dynamics

CLC Number: 

  • U461


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