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中文摘要：
采用推力壁压力积分法和推力传感器测量法对采用3种不同混合室结构的PDE平均推力进行了试验研究。结果显示，相同工况下，推力壁压力积分法得到的平均推力比推力传感器测量值大。随着工作频率的提高，推力传感器测量值与推力壁压力积分值的比值逐渐增加。现有试验工况下，各种混合室下的推力传感器测量值相差不大，混合室2略大于混合室3，而推力壁压力积分值有较大差异，混合室3的推力壁压力积分值显著大于混合室1和2。
英文摘要：
Using thrustwall pressure integration method and force sensor method synchronously, the average thrust characteristics of a pulse detonation engine （PDE） mockup operated in variety frequencies were investigated experimentally. Three mixing chambers were designed and used in the multicycle detonation experiments in order to observe the mixing chamber effect on average thrust of PDE mockup. The average thrust values obtained by thrustwall pressure integration method and force sensor method were contrasted and analyzedl The results indicated that the average thrust of the PDE mockup increased linearly as the operating frequency increased. The average thrust obtained by thrustwall pressure integration method was bigger than that obtained by the force sensor method in the same operating case. As the operating frequency increased, the ratio of average thrust obtained by force sensor method and thrustwall pressure integration method increased. Each of the average thrust of PDE mockup with mixing chamber 2 was larger slightly than that of mixing chamber 3 when the force sensor method was used at the several operating frequencies. Meanwhile, each of the PDE average thrust with mixing chamber 3 was larger than that of mixing chamber 1 and 2 when thrustwall pressure integration method was used.
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