军用强迫风冷加固计算机噪声影响因素研究

Research into Noise Influence Factor of Military Forced Air Cooling Ruggedized Computer

以某强迫风冷军用加固计算机为研究对象,对加固计算机的噪声源、噪声特性及影响噪声的主要因素进行了实验研究。研究结果表明:影响强迫风冷军用加固计算机声学噪声特性的因素主要包括风机、机箱风道,同时也排除了风机罩对计算机声学噪声特性的影响,并提出各主要影响因素对整机声学噪声贡献的占比,为将来进一步控制强迫风冷军用加固计算机声学噪声指明了方向。

Taking a certain forced air cooling military ruggedized computer as study object, this paper performs experimental study to the noise source, noise characteristics of ruggedized computer and the main factors influencing noise. The study result shows that：the factors effecting noise characteristics of the forced air cooling ruggedized computer include fans and chassis air channel, and the influence of wind hood on computer acoustic noise characteristics is excluded. This paper also puts forward the contribution ratio of the main influencing factors on the total acoustic noise, which points out the direction for the further study of forced air cooling ruggedized computer acoustic noise control.