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首页> 外文会议>International Congress on Sound and Vibration >THE SOUND RADIATION OF STEEL AND IRON AT NORMAL AND ELEVATED TEMPERATURES
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THE SOUND RADIATION OF STEEL AND IRON AT NORMAL AND ELEVATED TEMPERATURES

机译：正常和升高的温度下钢和铁的声辐射

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摘要

The sound radiation efficiency of the tested medium alloy steel, forged iron and cast-iron samples have been characterized by the attenuation rate of the sound. It has been shown analytically that the attenuation rate of the sound affected by combination of such mechanical and physical parameters of a metal as internal friction Θ{sup}(-1), yield stress σ{sub}0 modulus of elasticity E, metal density ρ, Poisson 's ratio μ. The correspondence between measured attenuation rate and those analytically predicted from tabulated metal properties is reasonable good, indicating that some sound radiation parameters can be tailored and predicted to a certain degree through proper selection of metals and metallurgical processing. Performed spectral analysis of the sound radiation of the medium alloy steel cylinder at elevated temperatures (100°C - 250°C) shows that the resonance frequency peaks have been shifted up to 300Hz with increase of the temperature.
机译：通过声音的衰减速率为测试介质合金钢，锻铁和铸铁样品的声音辐射效率。已经分析地显示，通过金属这种机械和物理参数的组合影响的声音的衰减率作为内部摩擦θ{sup}（ - 1），屈服应力σ{sub} 0弹性模量，金属密度ρ，泊松比μ。 The correspondence between measured attenuation rate and those analytically predicted from tabulated metal properties is reasonable good, indicating that some sound radiation parameters can be tailored and predicted to a certain degree through proper selection of metals and metallurgical processing.在升高温度（100°C - 250°C）下进行了介质合金钢圆筒声辐射的光谱分析表明，随着温度的增加，共振频率峰值已经转移到300Hz。

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