摘要
研究了在索网环形桁架式星载可展开天线中同时存在随机变量与区间变量的同步齿轮副防卡滞问题.对影响同步齿轮副发生卡滞失效的不确定量进行了细分,分成了区间变量和随机变量,并基于此建立了利用区间与概率的环形桁架式可展开天线机构中同步齿轮副卡滞失效的混合模型.利用该混合模型对同步齿轮副在不同环境温度下的防卡滞可靠度进行了评估,并与将影响同步齿轮发生卡滞失效的不确定量全部视为正态分布的概率模型的可靠度进行了比较.
The seizure-preventing for synchronous gears of the Astromesh deployable satellite antenna is studied with random variables and interval variables existing at the same time. The uncertainties with influence on gear pair seizure failure are subdivided into interval variables and random variables, on the basis of which the interval and probability hybrid model is built for the synchronous gear pair seizure failure in the ring truss deployable antenna. The synchronous gear pair anti-seizure reliability is evaluated at different ambient temperatures with this hybrid model. And the results are compared with the reliability evaluated by the probability model in which the uncertainties are all regarded as Obeying normal distribution.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2016年第3期61-66,共6页
Journal of Xidian University
基金
国家自然科学基金资助项目(51490660)
关键词
可展开天线
可靠性
区间概率混合模型
同步齿轮
防卡滞
deployable antennas
reliability
interval and probability hybrid model
synchronous gear
seizure-preventing
