摘要
研究了具有随机参数天线结构基于概率的优化设计问题。同时考虑了结构物理参数、几何尺寸和作用荷载等的随机性;应用有限元方法与结构可靠性理论对抛物面天线反射面精度的可靠性和结构单元强度、稳定性和可靠性进行了分析;在此基础上构建了基于概率的天线背架结构优化设计模型。对8m口径天线结构的优化结果表明:文中提出的天线结构分析和优化设计模型与方法是合理可行的。
The optimization design for antenna structures with random parameters and under random loads is investigated. The randomness of the structural physical parameters, geometry dimensions and the stochastic loads applied on structures are considered totally. Adopted finite element method, the antenna reflecting surface precision and strength/stability of structural elements are numerically analyzed, and the structural optimization design model is constructed. A simulated example of eight-meter diameter antenna confirms the flexibility and validity.
出处
《应用力学学报》
EI
CAS
CSCD
北大核心
2005年第3期491-494,共4页
Chinese Journal of Applied Mechanics
基金
陕西省自然科学基金项目资助(D7010418)
