Rocket Ejection Seat High-speed Stability System Selection,

Through analyzing the solutions for high-speed stability of rocket ejection seats which were made and have been serviced at home and aboard, the gap between the China and foreign countries on the performance of high-speed stability of rocket ejection seat has been found out. Since our new generation of rocket ejection seats cries for solving the barriers such as high-speed stability performance, personal protection capability, adverse attitude escape performance and sequence control technology with self-adapting ability, this paper focus on the research about high-speed stability of ejection seat. The parameters of occupant stability upon emergency escape have been first analyzed, and the MDRC (multi-axial dynamic response criteria) has been defined as an index for stability. The third generation of XX rocket ejection seat which currently has been finalized the design is regarded as the subject investigated, and a motive mathematical model for this seat has been established. After completion of calculating the seat modal, we compare the computational solution with test data for purpose of determining its correctness. On the premise of guaranteeing the correct calculation, different programs for stability of ejection seats have been studied. The seat stability performances for different programs have been obtained, which will provide theoretical basis for selecting high-speed stability program for next generation of rocket ejection seats.