Expedited Award for Novel Research: Probabilistic Optimal Design Using Reliability Index Methods

一般方法将用于机械和结构系统的概率优化设计(POD)。这一想法代表了一种结合故障估计来优化设计的新方法，从而避免了计算代价高昂的模拟。将开发一种将设计的健壮性与低灵敏度联系起来的概念。基于这一概念，发展了一种识别影响机械或结构系统可靠性的关键参数的方法。这种方法可以并入各种模拟程序。此外，POD方法适用于约束动态系统的概率设计和容差综合。

A general approach will be used for probabilistic optimal design (POD) of mechanical and structural systems. The idea represents a novel approach to optimize design in conjunction with failure estimates, which avoids computationally expensive simulations. A concept linking robustness of design to low sensitivity will be developed. Based on this concept, a method is developed which can identify critical parameters that affect the reliability of a mechanical or structural system. This methodology can be incorporated in various simulation programs. Further, the POD approach is readily applicable to probabilistic design and tolerance synthesis of constrained dynamic systems.