某PK车型后排轰鸣问题的优化  

Optimization of rear-row roar problem of a certain PK model

作　　者：叶景川 王军 罗莹 戴春蕾 YE Jingchuan;WANG Jun;LUO Ying;DAI Chunlei(Ganzhou Polytechnic,Ganzhou 341000,Jiangxi,China)

机构地区：[1]赣州职业技术学院,江西赣州341000

出　　处：《农业装备与车辆工程》2024年第3期84-86,共3页Agricultural Equipment & Vehicle Engineering

摘　　要：针对某PK车型后排轰鸣问题,分析车辆加速过程和怠速情况下的后排轰鸣,发现引发轰鸣的主要原因为进气系统进气气流激励和发动机的2阶激励。提出2种优化方案:一是提高空气滤清器支撑衬套的刚度,二是改善空滤出气管波纹段的轴向柔度。实验验证表明,优化后该车型在1850 r/min附近后排无明显轰鸣,有效降低了后排噪声,提高了车辆的乘坐舒适性。In response to the issue of rear-row roaring in a certain PK model,the main reasons for the rear-row roaring during vehicle acceleration and idle conditions were analyzed.It was found that the main reasons for the roaring were the excitation of the intake air flow in the intake system and the second-order excitation of the engine.Two optimization schemes were proposed:one was to increase the stiffness of the air filter support sleeve,and the other was to improve the axial flexibility of the corrugated section of the air filter outlet pipe.Experimental verification showed that after adopting the optimization scheme,a certain PK model had no obvious rear-row noise near 1850 r/min,effectively reducing the rear-row noise and improving the ride comfort of the vehicle.

关 键 词：后排轰鸣 进气系统 空气滤清器 发动机 优化方案 

分 类 号：U463.33[机械工程—车辆工程]