摘要
涡轮增压器噪声是增压发动机噪声的重要来源,一般分为自激励产生的机械噪声(包括同步噪声和次同步噪声)和内部气体产生的气动噪声(BPF噪声)。本文对涡轮增压器噪声产生机理进行介绍,并针对某乘用车柴油机涡轮增压器制定相应的噪声优化措施,并进行试验验证,最终涡轮增压器噪声有了很大程度的改善。
Turbocharger noise is an important factor of the supercharged engine noise, generally containing mechanical noise cause by autoexcitation （including synchronous noise and subsynchronous noise） and the airflow noise produced by internal gas （BPF noise）. The article introduces the theory of turboeharger noise briefly, and makes corresponding optimization measures for the turbocharger of a diesel. The measures are verified by experiment. Finally the turboeharger noise is improved greatly.
出处
《内燃机与配件》
2016年第8期22-26,共5页
Internal Combustion Engine & Parts
