摘要
针对某商用变速器台架加载噪声进行声品质评价方法研究,主要包括变速器声品质客观参量测试以及主观评价实验,通过相关性分析确定与主观评价实验结果相关系数较大的客观参数,通过多元线性回归建立了主观评价结果与客观参量之间的数学模型,并对该模型进行了有效性检验。结果表明:变速器加载噪声声品质主观评价主要受到尖锐度和响度影响,其中影响最大的为尖锐度;建立的线性回归模型具有较好的有效性。
The evaluation method of a commercial transmission's sound-quality was researched,which was test on the experimental bench on load,mainly includes the test of the objective parameters of transmission's sound-quality and the subjective evaluation experiment.Through correlation analysis,the objective parameters with larger correlation coefficient with the subjective evaluation results were determined.Through multiple linear regression,the mathematical model between the subjective evaluation results and the objective parameters was established,and the validity of the model was tested.The results show that the subjective evaluation of transmission loading noise is mainly affected by sharpness and loudness,and the sharpness is the most important factor.The linear regression model established is effective.
作者
张教超
强登科
莫诗婕
ZHANG Jiaochao;QIANG Dengke;MO Shijie(Shaanxi FAST Gear Co.,Ltd,Xi'an Shaanxi 710119,China)
出处
《汽车零部件》
2021年第7期61-64,共4页
Automobile Parts
关键词
声品质
响度
尖锐度
主观评价
Sound quality
Loudness
Sharpness
Subjective evaluation