摘要
多个构件装配而成的复杂结构可靠性分析存在计算流程繁琐、计算效率低的问题。基于极值响应面法、移动最小二乘法和分解协调的策略,提出分解协调移动极值响应面法(DCMERSM),对考虑流-热-固耦合作用的航空发动机高压涡轮叶盘径向变形进行动态可靠性分析,通过对比直接模拟和分解协调极值响应面法(DCERSM),对DCMERSM在建模特性和仿真性能方面的有效性和适用性进行验证。结果表明:DCMERSM不仅适用于转子机械动态可靠性分析,同时还可以用于复杂机械多构件结构可靠性分析。
The reliability analysis of complex structures assembled from multiple components has the problems of complicated calculation process and low calculation efficiency.The moving extremum response surface method-based decomposed coordinative strategy(DCMERSM)is proposed based on extremum response surface method,moving least squares and decomposition coordinative strategy.The dynamic reliability analysis of the radial deformation of the high-pressure turbine blade disk of the aeroengine considering the effect of fluid-thermal-structural coupling is performed.The direct simulation and decomposed coordinative extremum response surface method(DCERSM)are compared to verify the effectiveness and applicability of the proposed DCMERSM in modeling characteristics and simulation performance.The results show that the DCMERSM is not only suitable for the dynamic reliability analysis of rotor machinery,but also for the reliability analysis of multi-component structures of complex machinery.
作者
马楠
路成
MA Nan;LU Cheng(Requirement Engineering and Aircraft Development Department,COMAC Shanghai Aircraft Design and Research Institute,Shanghai 201210,China;School of Aeronautics,Northwestern Polytechnical University,Xi’an 710072,China)
出处
《航空工程进展》
CSCD
2020年第4期540-548,共9页
Advances in Aeronautical Science and Engineering
关键词
动态可靠性
多构件结构
分解协调移动极值响应面法
涡轮叶盘
流-热-固耦合
dynamic reliability
multi-component structure
moving extremum response surface method-based decomposed coordinative strategy
turbine blisk
fluid-thermal-structural coupling
