摘要
针对航空航天、国防装备等领域对高可靠性六维力传感器的迫切需求,提出将容错设计思想引入六维力传感器研究。比较分析了容错并联式六维力传感器与普通Stewart平台式六维力传感器的可靠性,基于故障树分析法(FTA),建立了容错式传感器系统和普通传感器系统的可靠性数学模型,从容错并联式六维力传感器的设计角度,推导出了测量系统失效率的函数。建立了系统可靠性与传感器冗余度的函数关系,并进行了容错并联式六维力传感器冗余分析,得出测量分支数目,提出了容错六维力传感器构型,研制出了传感器样机。
In order to meet the urgent requirement of high reliability of six-axis force sensor in the fields of aviation and aerospace, national defense facilities and etc. , the fault-tolerant design idea is introduced into the six-axis force sensor. The reliability of the fault-tolerant parallel six-axis force sensor and ordinary Stewart platform six-axis force sensor is analyzed and compared. Based on the fault tree analysis （FTA） method, the reliability mathematical models of the fault-tolerant sensor system and ordinary sensor system were established, and the failure rate function of the measurement system was deduced from the design point of view of the fault-tolerant parallel six-axis force sensor. The function relation between the system reliability and sensor redundancy was estab- lished, the redundancy analysis of the fault-tolerant parallel six-axis force sensor was conducted, and the number of the measure- ment branches was obtained. The structure of the fault-tolerant six-axis force sensor was put forward, and the prototype of the six- axis force sensor was also developed.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2015年第8期1699-1706,共8页
Chinese Journal of Scientific Instrument
基金
国家重点基础研究发展计划课题(2013CB733000)
国家自然科学基金(51305383)
教育部高等学校博士学科点专项科研基金(20131333120007)
河北省自然科学基金面上项目(E2015203165)资助
