将可靠性设计理论和鲁棒设计方法相结合,讨论了不完全概率信息的压杆稳定可靠性鲁棒设计问题,提出了稳定可靠性鲁棒设计的计算方法.把可靠性灵敏度溶入可靠性优化设计模型之中,将稳定可靠性鲁棒设计归结为满足可靠性要求的多目标优化问题.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的压杆稳定可靠性鲁棒设计,迅速准确地得到不完全概率信息的压杆稳定可靠性鲁棒设计信息.
Based on the reliability design theory and the robust design method, the reliability-based robust design of compressive bar under incomplete probability information was extensively discussed,and a numerical method for stable reliability-based robust design was proposed. The reliability sensitivity was added to the reliability-based optimization design model,while the stable reliability-based robust design was described as a multi-objection optimization. If first four moments of basic random variables have already been known, the computer program can be used to obtain accurately and quickly the stable reliability-based robust design information of compressive bar under incomplete probability information.