Research on Noise Characteristics of Pulsejet Engine

doi:10.3969/j.issn.1000-1093.2017.02.010

Abstract

Abstract: The noise characteristics of a Helmholtz-type pulsejet engine are experimentally studied. In the experiment, the length of tailpipe is changed from 680 mm to 1 280 mm at every 200 mm interval. The noise of pulsejet engine is measured at different distances and different angles from the exit of tailpipe. The experimental results show that the noise of pulsejet engine has the characteristics of periodicity and low frequency. The noise fundamental frequency of pulsejet engine is determined by its working frequency. The fundamental frequency component of noise is the largest proportion of the total noise. As the propagation distance of noise increases, the sound pressure level decreases. The attenuation amplitude of noise is slightly larger than that of the spherical wave. The noise attenuation laws of noise at different angles are almost identical. The directivities of noise at different propagation distances are same. The highest noise pressure appears in the direction of 0°. With the increase in length of tailpipe, the sound pressure level and the fundamental frequency decrease. However, the directivity of noise isn’t changed. Key

Key words: ordnancescienceandtechnology, pulsejetengine, noisecharacteristic, attenuationlaw, directivity

CLC Number:

V235.22⁺1

KANG Yang, WENG Chun-sheng， LI Ning. Research on Noise Characteristics of Pulsejet Engine[J]. Acta Armamentarii, 2017, 38(2): 273-279.

References

［1］ Putnam A A, Belles F E, Kentfield J A C. Pulse combustion［J］. Progress in Energy and Combustion Science, 1986, 12(1): 43-79.
［2］ Keller J O, Bramlette T T, Dec J E, et al. Pulse combustion: the importance of characteristic times［J］. Combustion and Flame, 1989, 75(1): 33-44.
［3］魏韬, 武晓松, 蔡文祥. 无阀式脉冲喷气发动机性能预示简化模型［J］. 航空动力学报, 2012, 27(1): 225-232.
WEI Tao, WU Xiao-song, CAI Wen-xiang. Simplified analytical models for performance prediction of valveless pulsejet［J］. Journal of Aerospace Power, 2012,27(1):225-232.(in Chinese)
［4］ Kentfield J. The potential of valveless pulsejets for small UAV propulsion applications［C］∥34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. Cleveland, OH,US: AIAA, 1998.
［5］程显辰. 脉动燃烧［M］. 北京：中国铁道出版社, 1994.
CHENG Xian-chen. Pulse combustion［M］. Beijing: China Railway Publishing House, 1994.(in Chinese)
［6］ Ohiwa N, Yamaguchi S, Hasegawa T. An experimental study of the ignition and combustion mechanisms in a pulse combustor. A new approach to a wide-range and low-noise pulse combustor［J］. JSME International Journal, 1987, 30(268): 1608-1614.
［7］ Isao I, Kenji O, Mitsuyoshi N, et al. Development of a low noise pulse combustor［J］.Combustion Science and Technology, 1987, 52(1/2/3): 107-119.
［8］ McQuay M Q, Dubey R K, Carvalho J A. The effect of acoustic mode on time-resolved temperature measurements in a Rijke-tube pulse combustor［J］. Fuel, 2000, 79(13): 1645-1655.
［9］ Dubey R K, Black D L, McQuay M Q, et al. The effect of acoustics on an ethanol spray flame in a propane-fired pulse combustor［J］. Combustion and Flame, 1997, 110(1): 25-38.

［10］ Kilicarslan A, Arisoy A. Acoustic analysis of a liquefied petroleum gas-fired pulse combustor［J］. Applied Acoustics, 2008, 69(9): 770-777.
［11］ Barr P K, Keller J O, Bramlette T T, et al. Pulse combustor modeling demonstration of the importance of characteristic times［J］. Combustion and Flame, 1990, 82(3/4): 252-269.
［12］ Margolis S B. The nonlinear dynamics of intrinsic acoustic oscillations in a model pulse combustor［J］. Combustion and Flame, 1994, 99(2): 311-322.
［13］ Maqbool D, Cadou C P. Acoustic analysis of valveless pulsejet engines［J］. Journal of Propulsion and Power, 2016,33(1):62-70.
［14］许林云, 周宏平, 马梦楠. Helmholtz 型脉冲发动机噪声构成分析［J］. 中国农机化学报, 2014, 35(3): 183-186.
XU Lin-yun, ZHOU Hong-ping, MA Meng-nan. Noise analysis of Helmholtz type of pulse jet engine［J］. Journal of Chinese Agricultural Mechanization, 2014, 35(3): 183-186. (in Chinese)
［15］钟英杰,邓凯,张国俊,等.内外流场耦合法数值研究 Rijke 管声学特性［J］. 声学学报, 2007, 32(6): 559-565.
ZHONG Ying-jie, DENG Kai, ZHANG Guo-jun,et al. Investigation on Rijke pipe's acoustic characteristics by numerical simulation:modeling the pulsing flow field coupled the inner of pipe with its outer space［J］. Chinese Journal of Acoustics, 2007, 32(6): 559-565.(in Chinese)
［16］初敏,徐旭. Rijke管自激热声振荡的数值模拟［J］. 声学学报, 2015, 40(1): 82-89.
CHU Min, XU Xu. Numerical simulation of self-excited thermoacoustic oscillation in Rijke tube［J］. Chinese Journal of Acoustics, 2015, 40(1):82-89.(in Chinese)
［17］胡声超, 李昂, 鲍福廷,等. 多喷管燃气降噪方案可行性数值研究［J］. 固体火箭技术, 2012, 35(2):198-202.
HU Sheng-chao, LI Ang, BAO Fu-ting, et al. Numerical research on jet noise reducing with multi-nozzle geometry［J］. Journal of Solid Rocket Technology, 2012,35(2):198-202.(in Chinese)
［18］商霖, 廖选平, 李璞. 固体火箭发动机地面热试车试验研究［J］. 强度与环境, 2015, 42(6):36-44.
SHANG Lin, LIAO Xuan-ping, LI Pu. Experimental study on the solid rocket engine ground firing test［J］. Structure and Environment Engineering, 2015, 42(6):36-44.(in Chinese)
［19］林学东, 黄丫, 袁方恩. 2.4 L汽油机噪声及其频谱特性的影响因素分析［J］. 噪声与振动控制, 2011, 31(2):29-33.
LIN Xue-dong, HUANG Ya, YUAN Fang-en. Analysis of the main influencing factors of noise and spectrum characteristics of 2.4 L type gasoline engine［J］. Noise and Vibration Control, 2011, 31(2):29-33.(in Chinese)
［20］许桂阳, 翁春生, 李宁. 喷管对脉冲爆轰发动机爆轰噪声影响的实验研究［J］. 兵工学报, 2014, 35(11):1799-1804.
XU Gui-yang, WENG Chun-sheng, LI Ning. Research on the noise characteristic of pulse detonation engine with nozzles［J］.Acta Armamentarii, 2014,35(11):1799-1804. (in Chinese)
［21］许桂阳, 翁春生, 李宁, 等. 填充系数对脉冲爆轰发动机爆轰噪声影响的实验研究［J］. 声学学报, 2015, 40(4): 579-584.
XU Gui-yang, WENG Chun-sheng, LI Ning,et al. Effect of filling fraction in the noise characteristic of pulse detonation engine［J］. Chinese Journal of Acoustics, 2015, 40(4): 579-584.(in Chinese)
［22］黄孝龙, 许桂阳, 翁春生,等. 脉冲爆轰发动机爆轰噪声场区域划分及其数值模拟［J］. 兵工学报, 2015, 36(10):1855-1860.
HUANG Xiao-long, XU Gui-yang, WENG Chun-sheng, et al. The classification and numerical calculation of noise propagation outside pulse detonation engine［J］. Acta Armamentarii, 2015, 36(10):1855-1860.(in Chinese)
［23］周宏平, 程祥之. 脉冲式烟雾机燃烧室-喷管结构参数研究［J］. 江苏大学学报：自然科学版, 1996, 17(6):37-43.
ZHOU Hong-ping, CHENG Xiang-zhi. Study on structural parameters of combution chamber and exhaust tube of pulse-jet fogger［J］. Journal of Jiangsu University: Science and Technology, 1996, 17(6):37-43.(in Chinese)

第38卷第2期2017 年2月兵工学报ACTA
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