摘要
本文对随机风压荷载作用下天线反射面精度和结构体系的可靠性进行了分析。通过构造等价事件,导出了反射面精度可靠性计算公式。利用载荷增量法确定出结构的主要破坏模式,并利用二阶矩理论和Ditlevsen狭边界法求得结构体系的可靠度。文中给出了一个计算实例。
The reliability of antenna structures under action of random wind load is analysed in this paper. By constructing the equivalent event, the formula for calculating the reliability of reflector accuracy of antenna is deduced. By using the load increment approach, the significant failure modes of structure are identified. And the system reliability is find out by using the theory of secondmoment and Ditlevsen narrow bounds approach. An example applying the procedure on a case of antenna structure is illustrated.
出处
《应用力学学报》
CAS
CSCD
北大核心
1990年第1期56-65,132,共10页
Chinese Journal of Applied Mechanics
关键词
可靠性分析
天线
随机风荷
反射面精度
结构体系
Reliability analysis, antenna, random wind load, refloctor accuracy, structure system.
