Position optimum analysis of aerospace relay's pushing rod

The reliability of aerospace relay directly influences the reliability of the whole system. The analysis and research on the optimum position of aerospace relay's pushing rod are an important process of aerospace relay reliability design. In the past, most researches were done for electromagnetic systems and spring systems-of aerospace relays. However, there was not any research on the position of the pushing rod. An analytical method for the optimum position of aerospace relay's pushing rod is presented in this paper. From four aspects, including the electromagnetic force and torque, work done by the electromagnetic force and displacement, the optimum position of a pushing rod is investigated based on the analysis of a straight spring system. The conclusions can be used to direct the optimum design and assembling of aerospace relays.