大排量摩托车冷却风扇噪声测试与选型分析

Noise Test and Selection Analysis of Cooling Fan for Large-displacement Motorcycle

随着生活水平的提高,以休闲娱乐为主的大排量摩托车越来越受到大众的青睐。噪声水平直接影响摩托车的骑乘舒适性,冷却风扇噪声作为摩托车的主要噪声源之一需要重点关注。从摩托车骑乘工况和环境噪声污染的角度出发,提出一种合理的风扇噪声测试和评估方法。以某500 cc大排量摩托车风扇为测试对象,运用LMS Test.Lab测试系统进行噪声测试分析,明确冷却风扇噪声对驾驶员耳旁和四周环境噪声的贡献量,通过选型分析锁定整车噪声更低的风扇方案,提升了摩托车的骑乘舒适性,减少了环境噪声污染。风扇噪声测试和选型分析方法可为摩托车风扇匹配提供参考。

With the improvement of living standards,large-displacement motorcycles focusing on leisure and entertainment become more and more popular with the public.Their noise level directly affects the riding comfort of motorcycles.Cooling fan noise is one of the main noise sources of motorcycles,which needs to be focused on.From the perspective of motorcycle riding conditions and environmental noise pollution,a reasonable method for testing and evaluating fan noise was proposed.Taking a 500 cc large displacement motorcycle fan as the test object,using the LMS Test.Lab test system to conduct noise test and analysis,it was clear that the cooling fan noise contributes to the driver’s ears and surrounding environmental noise,and the fan with lower noise of the vehicle was determined through the selection analysis,which improves the riding comfort of motorcycles and reduces environmental noise pollution.Fan noise testing and selection analysis methods could provide references for motorcycle fan matching.