经8次迭代，使初始不可行方案变成了重量减轻的可行方案，优化后的结果对于车身结构优化设计研究有参考作用。
After 8 iterations a feasible design scheme has been obtained from the initial infeasible one. The optimum result will be a reference for the optimization of the automobile body structures.
系统工程师可以使用结果来决定最优的系统结构和规格，或者执行研究以作出更优化的设计决定。
Systems engineers can use the results to determine the most optimum system architecture and specification or perform trade studies to make better informed design decisions.
本文对大型结构优化设计的深入研究和应用提供了有价值的参考。
The research in this thesis provides the valuable reference for the further research and application of big structural optimization design.
应用推荐