粘滞媒质对摩托车加速噪声的影响分析  

An Impacting Factors Study on Motorcycle Accelerating Noise in Viscous Medium

作　　者：冷传刚[1] 田晓松[1] 苏梅[1] 

机构地区：[1]天津内燃机研究所,天津300072

出　　处：《小型内燃机与摩托车》2012年第1期85-87,共3页Small Internal Combustion Engine and Motorcycle

摘　　要：定量分析了气象条件对摩托车加速噪声的影响。分析频率范围为20Hz至9000Hz。应用粘滞媒质中的声波衰减理论,计算不同湿度、温度等气象条件下摩托车噪声在粘滞媒质中传播时的衰减量,分析了气象条件对摩托车加速噪声的影响。分析结果表明,与温度、大气压力、风速相比,湿度是摩托车加速噪声的最重要影响因素,在进行试验时需要进行严格的监控记录。这一结论为摩托车加速噪声试验提供了明确的理论指导,确保试验结果的有效性。Quantitative analysis is conducted on meteorological factors on the motorcycle accelerating noise.Analysis frequency is selected from 20Hz to 9000Hz.Theory of acoustic attenuation in viscous medium is adopted to calculate the acoustic attenuation in the viscous medium then the impaction result can be gained.The results show that humidity is the most important factor of all.Strict monitor and records are needed during the test to ensure the accuracy of the test result.This conclusion provides a clear theoretical guidance to ensure the validity of test results.

关 键 词：摩托车加速噪声 粘滞媒质 声波吸收 

分 类 号：TK411.6[动力工程及工程热物理—动力机械及工程]