中文摘要：

在煤油/空气单管气动阀式脉冲爆震发动机（PDE）研究基础上,建立了煤油/空气三管气动阀式PDE实验系统。在进气加温的条件下,以煤油为燃料,低污染空气为氧化剂,在内径为100mm、长为2000mm的3个爆震管组成的三管气动阀式PDE中进行了多循环爆震实验,成功实现总工作频率30Hz情况下,保证三管正常时序工作,在每个爆震管中均获得稳定发展的Chapman-Jouguet（CJ）爆震波,研究了共用进气道对爆震室充填混气的影响和不同工作频率下三管气动阀式PDE的爆震波压力特性。研究结果为进一步研究多管PDE提供了基础,为探索脉冲爆震-涡扇组合发动机（PDTE）的可行性提供了初步的理论依据。

英文摘要：

Based on kerosene/air single-tube aero-valve pulse detonation engine （PDE）, a whole test system of kerosene/air triple-tube aero-valve PDE is established. In a triple-tube aero-valve PDE composed of each detonation tube 100 mm in inner diameter and 2 000 mm in length, with heated liquid kerosene and low-pollution air filled into the tubes as detonable mixture, a multi-cycle detonation test is carried out. The scheduling operation of triple-tube PDE at total frequency of 30 Hz can be guaranteed, and the fully-developed Chapman-Jouguet （CJ） detonation waves are obtained in each detonation tube successfully. Moreover, the influence of common inlet on detonable mixture filling, and the detonation wave pressure property of triple-tube aero-valve PDE at different total frequencies are investigated. The results lay the foundation for investigating deeply the performance of multi-tube PDE and supply the preliminary design theory to explore the feasibility of pulse detonation-turbofan combined engine（PDTE）.