Abstract
In order to minimize weight while satisfying guidelines for stiffness, optimization of the structural topology of the rocker-bogie suspension design was carried out based on the variable density method. Simplifications of load and boundary conditions for the rocker-bogie were required. Quasi-static analysis of three kinds of limit loading was established, selected under various loading cases. Taking the least flexibility as the objective function, under the constraint condition of volume fraction, optimization of structural topology was accomplished using Hyperworks software. According to the results of the optimization designed with the volume fraction 0.2, after considering geometry trafficability requirements of the exploration rover and manufacturability of suspension and the manufacturability of the suspension, the structural design of the rocker-bogie suspension was finalized. The results of finite element analysis indicated that both the stiffness and the intensity satisfied all requirements. This proved that the structural design of the suspension was reasonable.
| Original language | English |
|---|---|
| Pages (from-to) | 749-754 |
| Number of pages | 6 |
| Journal | Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University |
| Volume | 31 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jun 2010 |
Keywords
- Exploration rover
- Rocker-bogie suspension
- Topology optimization
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