Archives of Acoustics, 39, 3, pp. 395-402, 2014
10.2478/aoa-2014-0043

Design of Acoustic Tubes Array and Application to Measuring Acoustic Loads in Supersonic Airflow

Long WEI
1.School of Mechanical Engineering, University of Science and Technology Beijing, China 2.Reasearch Center for Aerospace Vehicles Technology, University of Science and Technology Beijing,China
China

Min LI
1.School of Mechanical Engineering, University of Science and Technology Beijing, China 2.Reasearch Center for Aerospace Vehicles Technology, University of Science and Technology Beijing,China
China

Qiang FU
1.School of Mechanical Engineering, University of Science and Technology Beijing, China 2.Reasearch Center for Aerospace Vehicles Technology, University of Science and Technology Beijing,China
China

Yue FAN
1.School of Mechanical Engineering, University of Science and Technology Beijing, China 2.Reasearch Center for Aerospace Vehicles Technology, University of Science and Technology Beijing,China
China

Debin YANG
1.School of Mechanical Engineering, University of Science and Technology Beijing, China 2.Reasearch Center for Aerospace Vehicles Technology, University of Science and Technology Beijing,China
China

In the acoustic fatigue experiment for hypersonic vehicle in simulated harsh service environment on ground, acoustic loads on the surface of test pieces of the vehicle need to be measured. However, for the normal microphones without high temperature resistance ability, the near field sound measurement cannot be achieved. On the basis of previous researches, in this work, an acoustic tubes array is designed to achieve the near field measurement of acoustic loads on the surface of the test piece in the supersonic airflow with high temperature made by coherent jet oxygen lance. In this work, the process of designing this acoustic tubes array is firstly introduced. Then the equivalence between phase differences of microphones mounted at exit of tubes and those at entrances of tubes are proved, which ensure the reasonability of substituting the phase differences of signals acquired by microphones directly into beamforming algorithm to acquire the distribution and intensity of the acoustic load source. Finally, with this designed acoustic tubes array, a measurement of acoustic loads on the surface of the test piece in the supersonic airflow made by coherent jet oxygen lance is conducted, and the measurement result is analyzed.
Keywords: acoustic load; acoustic tubes array; near field measurement;supersonic airflow.
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References

Bai M R, Lee J(1998). Industrial Noise Source Identification by Using an Acoustic Beamforming System. Journal of Vibration and Acoustics-Transactions of the ASME. 120,2:426-433.

Clarkson B L(1994) Review of sonic fatigue technology. NASA-N94-29407.

Craig A. Stephens, Larry D. Hudson et,al.(2007). Overview of an Advanced Hypersonic Structural Concept Test Program. FlAP Annual meeting-hypersonic project.2007.

Dexin Zhao,Zhiping,Huang, Shaojing Su,et,al. (2013), Matched-field Source Localization with a Mobile Short Horizontal Linear Array in Offshore Shallow Water ,ARCHIVES OF ACOUSTICS, 38,1:105-113.

Eriksson LJ (1980) Higher order mode effects in circular ductsand expansion chambers. J Acoust Soc Am 68,545:545–550.

E.-Y.Kim, M.-S.Kim, S.-K.Lee (2011). Identification of the Impact Location in a Gas Duct SystemBased on Acoustic Wave Theory and the Time Frequency. Experimental Mechanics.51,6:947-958.

Konle, H.J., C.O. Paschereit and I. Röhle(2011). Application of Fiber-Optical Microphone for Thermo-Acoustic Measurements. Journal of Engineering for Gas Turbines and Power,133,1,.doi: 10.1115/1.4001983.

Kinsler LE et al (1999). Fundamentals of acoustics. Wiley, New York.

Ma Dayou, Shen Hao(2004). SHENGXUE SHOUCE, Scinece Press, Beijing.

Markovic D, Antonacci F, Sarti A, et al(2013). Soundfield Imaging in the Ray Space. IEEE Transactions onAudio, Speech, and Language Processing.21,12:2493-2505.

Mixson, J. S., & Roussos, L. A. (1987). Acoustic fatigue: overview of activities at NASA Langley. AIAA Dynamics Specialists Conference, Monterey, Calif., 9-10 Apr. 1987. 1: 9-10.

NASA(2001): Dynamic environmental criteria . NASA-HDBK-7005.

National Instrument.(2010).Jet Engine Noise and Aero-acoustic Noise Measurement.

Paul. L. Moses, Vincent. L. Rausch, Laut. T. Nguyen(2004). NASA hypersonic flight demonstrators-overview status and future plans, Acta Astronautics. 55,3-9:619-630.

Peral-Orts Ramon, Velasco-Scanchez Emilio, Campillo-Davo Nuria, et al. (2013).Using Microphone Arrays to Detect Moving Vehicle Velocity, ARCHIVES OF ACOUSTICS, 38,3 :407-415.

Rizzi S. A. (2001) Closed-Loop Control for Sonic Fatigue Testing Systems. Sound And Vibration 35,11:19-22.

Roberto Garcia (2012). Assessment of Microphone Phased Array for Measuring Launch Vehicle Lift-off Acoustics. NASA/TM-2012-217563.

Swanson A D, Coghlan S C, Pratt D M, et al.(2007). Hypersonic vehicle thermal structuretest challenges. AIAA-2007-1670.

Yan Shefeng, Ma Yuanliang(2009). Sensor Array Beampattern Optimization: Theory with Applications. Scinece Press, Beijing.

YANG Zhufang, WANG Zhenzhou, ZHU Rong, et al(2007).Design and application of coherent jet oxygen lance.Journal of University of Science and Technology Beijing.29,S1: 81-84.




DOI: 10.2478/aoa-2014-0043

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