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An Effective Shakedown Design Optimization Method Based on Kriging Model

机译:基于Kriging模型的有效的Shakbleakown设计优化方法

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The optimal design of plate structures made of elastic perfectly plastic material is studied according to the shakedown criterion. The optimization problem is here to find the cross section variables of the structural elements such that the shakedown limit load multiplier of structure is maximum under weight of the structure plus certain size constraints are satisfied. The design problem is formulated by means of a static approach based on the shakedown lower bound theorem.An approximation algorithm based on Kriging method for optimal shakedown design of the structures is employed to solve this problem. The temperature parameter method is used to do structural shakedown reanalysis. The numerical example is given to demonstrate that the proposed method is more efficient and economical.
机译:根据Shakedrown标准研究由弹性完美塑料材料制成的板结构的最佳设计。优化问题在此用于找到结构元件的横截面变量,使得结构的Shakedlown限制负载乘数最大在结构的重量下,满足某些尺寸约束。通过基于Shakedrown下限定理的静态方法配制设计问题。基于Kriging方法的近似算法用于解决结构的最佳Shakingown设计。温度参数方法用于进行结构升起的再分析。给出了数值示例以证明所提出的方法更有效和经济。

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