气侯因素和地球表面环境对降低发电设备噪声级的影响
发布时间：2019-06-05 17:51
【摘要】：正据《Теплоэнергетика》2013年7月刊报道,莫斯科动力学院的专家分析了气侯因素和地球表面环境对降低发电设备噪声级的影响。气侯因素和地球表面环境对降低发电设备噪声级具有极重要的影响。来自同一点的同一噪声源的噪声级取决于温度和湿度的变化。在这种情况下,可以忽略大气压力的影响。温度和湿度在一年内的变动量导致计算点同一个噪声源的声级变化。离开噪声源的距离增加时,气侯因素引起的噪声级变化范围将增加。声压级随湿度和温度的变化取决于几何平均频率,并取决于从噪声源到计算点的距离。在高频和大距离的情况下,由于大气的吸声作用而造成的噪声衰减值可达10分贝,甚至达到100分贝;在低频率时,达到
[Abstract]:Experts from the Moscow Institute of Dynamics analyzed the effects of climate factors and the Earth's surface environment on reducing the noise level of power generation equipment, according to a July 2013 issue. Climate factors and the earth surface environment have a very important impact on reducing the noise level of power generation equipment. The noise level of the same noise source from the same point depends on the temperature and humidity. In this case, the effect of atmospheric pressure can be ignored. The variation of temperature and humidity in one year leads to the change of sound level of the same noise source at the calculated point. When the distance from the noise source increases, the range of noise level caused by climate factors will increase. The variation of sound pressure level with humidity and temperature depends on the geometric average frequency and the distance from the noise source to the calculated point. In the case of high frequency and large distance, the noise attenuation caused by the sound absorption of the atmosphere can reach 10 decibels or even 100 decibels, and at low frequencies, the noise attenuation values can reach 10 decibels or even 100 decibels.
【分类号】：TM31
本文编号：2493713
[Abstract]:Experts from the Moscow Institute of Dynamics analyzed the effects of climate factors and the Earth's surface environment on reducing the noise level of power generation equipment, according to a July 2013 issue. Climate factors and the earth surface environment have a very important impact on reducing the noise level of power generation equipment. The noise level of the same noise source from the same point depends on the temperature and humidity. In this case, the effect of atmospheric pressure can be ignored. The variation of temperature and humidity in one year leads to the change of sound level of the same noise source at the calculated point. When the distance from the noise source increases, the range of noise level caused by climate factors will increase. The variation of sound pressure level with humidity and temperature depends on the geometric average frequency and the distance from the noise source to the calculated point. In the case of high frequency and large distance, the noise attenuation caused by the sound absorption of the atmosphere can reach 10 decibels or even 100 decibels, and at low frequencies, the noise attenuation values can reach 10 decibels or even 100 decibels.
【分类号】：TM31
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