脉冲喷气发动机进气噪声控制技术研究  

Study on noise control of pulse-jet engine

作　　者：杜治平[1] 周宏平[2] 许林云[2] 

机构地区：[1]江苏信息职业技术学院,江苏无锡214153 [2]南京林业大学,江苏南京210037

出　　处：《中华卫生杀虫药械》2009年第6期464-466,共3页Chinese Journal of Hygienic Insecticides and Equipments

摘　　要：目的研究控制脉冲喷气发动机噪声,但不影响其工作性能的措施。方法对脉冲喷气发动机噪声源进行分析,设计了进气消声器。结果安装所设计的3种消声器后,测点处的声压级分别降低了6.9、9.41和9.37dB,且不影响发动机的工作连续性。结论加装消声器能够控制脉冲发动机的噪声。Objective To study the measures for controlling the noise of the pulse-jet engine, but does not affect their working pefformance. Methods The intake silencer was designed, according to analysing the noise source of the pulse-jet engine. Results With the three mufflers, the sound pressure level of the measuring point was decreased by 6. 9, 9.41 and 9. 37 dB, without affecting the work continuity of the engine. Conclusion With the mufflers, the noise of the pulse-jet engine can be controlled.

关 键 词：脉冲喷气发动机 噪声控制 消声器 

分 类 号：S491[农业科学—植物保护]