摘要

In order to evaluate the characteristics of separation of external stores from aircraft, a captive trajectory simulation system for transonic speed wind tunnel test is designed to simulate the trajectory of external stores released from an aircraft. A six-degrees-of-freedom series robot is designed for capturing the trajectory of external stores, and the position accuracy of pneumatic load is analyzed by using the finite element method.The kinematics analysis of robot is carried out, and a controller for captive trajectory simulation system of external stores is designed according to the dynamic equation of external stores. The motion space of robot is simulated and analyzed. The trajectory of a external store and its trajectory captured by the robot arm are simulated. The results show that the allowable experimental time of system is more than 0.8 s, and the captive trajectory errors of external stores captured by robot are less than 1 mm, which meets the requirements of experimental accuracy. The authenticity of trajectory of external stores simulated by captive trajectory simulation system in wind tunnel test is theoretically verified.