Adopting the triangle elements to fill the design region, the difficulty to divide irregular design domain by rectangular elements is overcome.
采用三角形单元进行有限元的分析，克服矩形单元对不规则区域划分单元的局限性。
We focus on the inverted triangle truss structure in practical engineering, while a rectangular truss structure is designed as a comparison. Both of these two kinds are all analyzed.
在结构优化设计中，针对实际工程的倒三角形桁架结构，同时又设计了矩形桁架结构作为对比，对这两种桁架进行结构优化。
We focus on the inverted triangle truss structure in practical engineering, while a rectangular truss structure is designed as a comparison. Both of these two kinds are all analyzed.
在结构优化设计中，针对实际工程的倒三角形桁架结构，同时又设计了矩形桁架结构作为对比，对这两种桁架进行结构优化。
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