Aeroacoustic Study on a Simplified Nose Landing Gear

摘要：

　　Simulation analysis and experiment research are performed on the aeroacoustic noise of a landing gear component in this paper.Detached Eddy Simulation (DES) is used to produce the flow field of the model.The Ffowcs-Williams/Hawkings (FW-H) equation is used to calculate the acoustic field.The sound field radiated from the model is measured in the acoustic wind tunnel.A comparison shows that the simulation results agree well with the experiment results under the acoustic far field condition.The results show that the noise radiated from the model is broadband noise.The directivity of the noise source is like a type of dipole.The wheel is the largest contributor and the strut is the least contributor to the landing gear noise.The results can provide some reference for low noise landing gear design.

关键词： Landing gear noise Acoustic measurement Computational aeroacoustics Acoustic analogy

作者: LONG Shuang Lia NIE Hongb XU Xinc

作者单位: College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

会议类型: 国际会议

会议名称: the 2012 International Conference on Frontiers of Mechanical Engineering and Materials Engineering (机械工程与材料工程国际会议())

会议地点: 香港

会议语种:英文

页码: 18-23

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）