摘要
将可靠性设计理论和稳健设计方法相结合,讨论不完全概率信息的梁结构可靠性稳健设计问题,提出可靠性稳健设计的计算方法。把可靠性灵敏度溶入可靠性优化设计模型之中,将可靠性稳健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梁结构可靠性稳健设计,迅速准确地得到不完全概率信息的梁结构可靠性稳健设计信息。
Based on the rehability design theory and the robust design method, the reliability-based robust design of beam structure under incomplete probability information is extensively discussed and a numerical method for reliability-based robust design is proposed. The reliability sensitivity is added to the reliability-based optimization design model and the reliability-based robust design is described as a multi-objection optimization. On the condition of known first four moments of basic random variables, the respective program can be used to obtain the reliability-based robust design information of beam structure under incomplete probability information accurately and quickly.
出处
《机械强度》
CAS
CSCD
北大核心
2008年第2期225-228,共4页
Journal of Mechanical Strength
基金
国家自然科学基金项目(50535010)
中国博士后基金项目(2005038593)
辽宁省自然科学基金项目(20052034)资助~~
关键词
梁结构
不完全概率信息
可靠性灵敏度
可靠性优化设计
稳健设计
Beam structure
Incomplete probability information
Reliability sensitivity
Reliability optimization
Robust design
