不完全概率信息的螺旋管簧的可靠性优化设计

Reliability-Based Optimization of Coil-Tube Springs Based on Incomplete Probability Information

讨论了随机参数服从非正态分布螺旋管簧的可靠性优化设计问题.在基本随机参数的前四阶矩已知的情况下,应用随机摄动法和Edgeworth级数方法并通过计算机程序可以实现随机参数服从非正态分布的螺旋管簧可靠性优化设计,迅速准确地得到了螺旋管簧的可靠性优化设计信息.

The probabilistic perturbation method and the Edgeworth series technique are employed to devise a practical and effective method for the reliability optimization design for coil-tube springs with non-normal distribution parameters on condition that the first four moments of basic random variables are known. The respective program can be used to obtain the reliability optimization design information of coil-tube springs with non-normal distribution parameters accurately and quickly.