在形状优化的基础上，采用二次优化技术，对结构的截面尺寸进行了优化。
Based on shape optimization, we use second optimization technology to optimize structure section size.
基于统一设计变量方法，实现了导管架海洋平台在动冰载荷作用下的截面和形状动力优化设计。
Based on the unified design variable method, the shape and sizing optimization design of jacket platform with dynamic ice-load is investigated.
在整个演化程序的进行中，所用有限单元既可以参与演化，又可以参与支撑结构的形状优化。
During the evolution process, the used finite element participated the evolution and the shape optimization of supporting structure.
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