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Wang Xiaoqing,Xiang Yang,Guo Zhiyong,Xia Xuebao,Shi Yuxiao,Xue Peng,Wu Shaowei 대한기계학회 2014 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.28 No.4
An experimental method of measuring acoustic surface radiation resistance is developed. The principle of the method is based on obtainingsource velocity and field pressure generated by the source. To measure surface radiation resistance, measuring probe was developedand measuring system was set up. Then, major factors that affect measurement accuracy is discussed and great improvements aregot. After that, experiments of measuring baffled circular piston were conducted to analyze its applicable frequency range. To verifyactual application effect, experiments of measuring the tube and cylinder heads of a diesel engine were performed. The results show thatthis measuring system can obtain resistance values in the frequency range from 460 to 1900 Hz with high precision. The measuring systemhas features of simple operation, convenient use, and high accuracy. Therefore, it can be used to determine surface resistance matrixof various structures.