模糊可靠性设计在排爆机器人上的准极限应用

Quasi-Limit Application of the Fuzzy Reliability Design to the Anti-Explosion Robot

针对应用传统设计方法设计短时、长间隔的特种机器人常会导致机器人非常笨重的缺陷,推导了应力为模糊变量、强度为随机变量组合时的两端截尾分布下的模糊可靠性计算方法,并在排爆机器人设计中进行了应用．该方法可较好解决特种机器人由载荷不确定性而导致的可靠性问题,缩短了研发周期,减轻了机器人质量．

With the traditional design methods, the short-time and long-interval special robots are often too heavy to be adapted to the working environment. In the paper, on the basis of theoretical distributions, the theory of cutting-off-tail distribution at two ends is deduced, in which the stress is fuzzy variable and the strength is random one. The new reliability design method, combined with the traditional one, is applied in the design of the anti-explosion robot. The method increases the reliability of robot with uncertain load, shortens the development cycle and decreases the mass of the robot.