吉林大学学报(工学版) ›› 2010, Vol. 40 ›› Issue (03): 729-0734.

• paper • Previous Articles     Next Articles

Multi-objective optimization of rocker-bogie suspension parameters of  lunar rover for energy-saving passing obstacle

LI Suo-jun,GAO Hai-bo,DENG Zong-quan   

  1. School of Mechanical and Electrical Engineering, Harbin Institute of Technology, Harbin 150080, China
  • Received:2008-05-08 Online:2010-05-01 Published:2010-05-01

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Abstract:

In order to meet the requirements of the lunar rover for energy saving and light weight, taking the energy consumption of driving motors as the objective function, the parameters of rocker-bogie suspension were optimized for rover passing obstacle condition. A parametric model was built for the rocker-bogie suspension, the conditions for rover-passing obstacle were analyzed, and a mathematical model was established for the multi-objective optimization of the suspension parameters. The maximum-minimum method was adopted to unify the multi-objective function to a single-objective function. The optimization analysis was performed by the sequential quadratic programing algorithm to obtain the optimal values of the suspension parameters. The results showed that the energy consumptions of motors during rover passing obstacle reduce significantly.

Key words: mechanical design, suspension parameter, multi-objective optimization, lunar rover, rocker-bogie suspension

CLC Number: 

  • TE132
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