在刚度可靠性设计理论和优化设计方法的基础上,讨论了不完全概率信息条件下梁结构刚度可靠性优化设计问题,建立了刚度可靠性优化设计方法的数学模型,提出了刚度可靠性优化设计的计算方法。在基本随机参数的前四阶矩已知的情况下,通过计算机程序可以实现不完全概率信息条件下梁结构刚度可靠性优化设计,迅速准确地得到不完全概率信息条件下梁结构刚度可靠性优化设计信息。
Based on the stiffness reliability design theory and the optimization design method,the reliability-based optimization of beam structure stiffness under incomplete probability information is extensively discussed and a numerical method for stiffness reliability-based optimization is proposed. On the condition of known first four moments of basic random variables ,the respective program can be used to obtain the reliability-based optimization information of beam structure stiffness under incomplete probability information accurately and quickly.