发动机噪声的心理学预测模型

Model of Psychological Prediction on Engine Noise

研究了发动机运转时对噪声的主观评估,提供了一种新的噪声评估指标,并运用了多元统计方法分析了发动机的听觉特性。结果发现,影响发动机噪声的主观感觉的主要参数为响度特性、脉动性以及频率特性。这些特性可分别用A计权声级、峭度和高频级来加以量化。

Subjective evaluations are investigated during engine working. A kind of new index to assess noise is given. Engine hearing characteristics are analyzed by using multivariate statistical methods. The important factors influenced on engine subjective impressions are loudness, impulsiveness, and frequency characteristics Which can be quantified by A-weighted sound pressure level, kurtosis and high frequency level.