Experiments on Thrust Measurement of Multi-Cycle Pulse Detonation Engine
Experiments on Thrust Measurement of Multi-Cycle Pulse Detonation Engine
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发表时间：
2012
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通讯作者：
Zhang Jing-zhou
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作者：
Zhang Jing-zhou
为了直接测量多循环脉冲爆震发动机的推力，建立了内径114 mm、长1100 mm的爆震管阻力和净推力测量装置。对脉冲爆震发动机及其主要部件充气后的总压恢复和流动阻力损失特性进行了研究，将脉冲爆震发动机及其附件的溢流阻力转移到试验台上，消除了溢流对推力的影响；进行了大量的爆震试验，使煤油/空气气动阀式脉冲爆震发动机可以在40 Hz的频率下工作；利用高频动态推力传感器测量了脉冲爆震发动机的净推力，得到了发动机的变化过程，为深入研究脉冲爆震发动机的推进性能奠定了基础。
In order to measure directly the thrust of multi-cycle pulse detonation engine,the rig of drag and net thrust measurement was established.With a detonation tube 114mm in inner diameter and 1100mm in length,the characteristics of overall pressure recovery and flow drag loss of pulse detonation engine and the main parts was investigated with filling air.The drag of overflow of pulse detonation engine and the accessory was devolved to the rig and the influence of overflow on thrust was eliminated.Much detonation experimentation was carried out and the kerosene/air aero-valve pulse detonation engine could be operated at 40Hz in frequency.The net thrust of pulse detonation engine was measured with high frequency dynamic thrust sensor and the variety course was obtained.This investigation is of importance to establish basics for investigating thoroughly the propulsion performance of pulse detonation engine.