【摘要】 本文以国标噪声总体评价指标为准,利用谱分析理论探求噪声特性及其分布规律,以此采取切实对策实施噪声控制。JN—162重型汽车降噪试验研究实践结果表明,本文采用的降噪方法是可行而有效的。更多还原

【Abstract】 Aiming at the noise evaluation parameter target set by the National Standard and using spectrum analysis theory, this paper searches out the noise characteristics and distributing pattern in order to take reliable measures for implementing noise control. The results from an experimental study on JN-162 heavy duty truck show that the adopted analysis method is feasible and effective.更多还原