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1、發(fā)動(dòng)機(jī)噪音
車(chē)輛發(fā)動(dòng)機(jī)是噪音的一個(gè)來(lái)源，它的噪音產(chǎn)生是隨著發(fā)動(dòng)機(jī)轉(zhuǎn)速的不同而不同，主要通過(guò)前翼子板、引擎蓋、擋火墻、排氣管產(chǎn)生和傳遞。
Vehicle engine is a source of noise, it's the noise generated is different depending on the engine speed, mainly through the front fenders, hood, firewall blocking the exhaust pipe production and delivery.
2、路噪
路噪是車(chē)輛高速行駛的時(shí)候風(fēng)切入形成噪音及行駛帶動(dòng)底盤(pán)震動(dòng)產(chǎn)生的，還有路上沙石沖擊車(chē)底盤(pán)也會(huì)產(chǎn)生噪音，這是路噪的主要來(lái)源，主要通過(guò)四車(chē)門(mén)、后備箱、前翼子板、前輪弧產(chǎn)生和傳遞。
Road noise is traveling at high speed when the wind cut to form the noise and vibration generated by travel drive chassis, as well as the impact of gravel road car chassis will produce noise, which is the main source of road noise, mainly through four doors, trunk, front fender, front wheel arc generation and delivery.
3、胎噪
胎噪是車(chē)輛在高速行駛時(shí)，輪胎與路面磨擦所產(chǎn)生的，視路況車(chē)況來(lái)決定胎噪大小，路況越差胎噪越大，另外柏油路面與混泥土路面所產(chǎn)生的胎躁有很大區(qū)別，主要通過(guò)四車(chē)門(mén)、后備箱、前葉子板、前輪弧產(chǎn)生和傳遞。
Vehicle tire noise at high speeds, tire and road surface friction generated, depending on the traffic condition to determine the size of tire noise, traffic, the worse the bigger tire noise,another tire asphalt and concrete pavement noise generated by very different , mainly through four doors, trunk, front fender, front wheel arc generation and delivery.
4、風(fēng)噪
風(fēng)噪是指汽車(chē)在高速行駛的過(guò)程中迎面而來(lái)的風(fēng)的壓力已超過(guò)車(chē)門(mén)的密封阻力進(jìn)入車(chē)內(nèi)而產(chǎn)生的，行駛速度越快，風(fēng)噪越大，主要通過(guò)四門(mén)密封間隙、包括整體薄鋼板產(chǎn)生和傳遞。
Wind noise is the wind pressure of the car during traveling at high speed over the oncoming vehicle door seal resistance generated in the car, the faster the traveling speed, the greater the wind noise, mainly through the four sealing gap, including the overall thin steel production and delivery.
5、共鳴噪和其他
車(chē)體本身就像是一個(gè)箱體，而聲音本身就有折射和重疊的性質(zhì)，當(dāng)聲音傳入車(chē)內(nèi)時(shí)，如沒(méi)有吸音和隔音材料來(lái)吸收和阻隔，噪音就會(huì)不斷折射和重疊，形成的共鳴聲，主要通過(guò)噪音進(jìn)入車(chē)內(nèi)，疊加、反射產(chǎn)生。
The body itself, like a box, and the sound itself is refracted and overlapping nature of the vehicle when an incoming sound, if there is no sound absorption and sound insulation and barrier to absorb, refract and noise will continue to overlap, the resulting resonance sound, mainly into the car through the noise superimposed reflections.

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