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装甲车辆内部的A级噪声高达114.4dB,是一个国内外都在力求解决的理论和技术性难题,装甲车辆噪声的很大一部分来自它的板结构的振动声辐射。文中利用声强测量技术和开发的振动强度测量方法与系统,对一装甲车车体板结构的声辐射和振动能量流进行了测量分析,给出了它们声振特性的动态结果,确定出了甲板各个部分的声辐射量、振动能量流和相互间的一些联系,为装甲车辆减振降噪措施的合理化提供了依据,具有一定的实际应用意义。
Class A internal noise of armored vehicles up to 114.4dB, is a domestic and international efforts to solve the theoretical and technical problems, armored vehicles, a large part of the noise from its plate structure vibration and sound radiation. In this paper, the acoustic radiation and vibration energy flow of an armored vehicle body structure are measured and analyzed by using the sound intensity measurement technology and the developed vibration intensity measurement method and system. The dynamic results of their acoustic vibration characteristics are given, and the deck Each part of the sound radiation, vibration energy flow and some contact between each other for the armored vehicle vibration and noise reduction measures to provide a reasonable basis, with a certain practical significance.