STOVL 推进系统模式转换过程建模及分析

Based on the clutch dynamic performance calculation model established by the dynamic analysis of the clutch components， the co-working equations of STOVL propulsion system mode conversion process， namely its dynamic performance simulation model， were set up， according to the coupling relationship of short takeoff and vertical landing (STOVL) propulsion system components in different working states. The control strategies for the conversion between STOVL mode and conventional mode were proposed，and the characteristics of the performance parameters during the conversion process under different clutch engagement speeds were compared. Results showed that the maximum error of the simulation model was 3.76% compared with the foreign research data in the process of mode conversion. In the process of mode conversion，the proposed control strategy can ensure that there was no overlimit of temperature and speed of STOVL propulsion system，and the surge margin change was less than 0.1%. In the process of mode conversion， the shorter clutch engagement time of mode conversion process， the greater instantaneous frictional heat generation，but the lower total heat generation.