不知道你是否有这样的体验，即使关紧车窗，车内的噪音还是很大。
有人在网上提问：为什么坐在豪华车内会感觉更加静谧呢？
汽车的降噪是一个系统的，复杂的工程，难以用一篇文章就说明白。今天造车小将就来跟大家说一说车上的一个降噪“神器”。
汽车的车身是由很多钣金焊接而成，钣金与钣金之间存在空腔，很多空腔都是与外界相连的，这些空腔就成了噪音传递到车内的路径。
为了切断这个噪音传播的路径，汽车攻城狮们在钣金腔体内嵌入了发泡材料，这种特殊的材料在受热的情况下就会膨胀，从而把空腔与外界隔绝起来，这样进入车内的噪音自然就少了。
图片为车身剖开后看到的填充在腔体内的发泡件
当然，像这种使用发泡材料使车子尽可能的密封，使噪音进不来，只是降低噪音的一种方式，其它的降噪方式以后有机会再跟大家分享。
原创文章，作者：cesifu，如若转载，请注明出处：http://www.cesifu.com/article/34134.html
微信扫一扫 
支付宝扫一扫 相关推荐
-
让越野骑手在街头像在泥地一样潇洒5款适合越野骑手驾驶的街车
杜卡迪Hypermotard：因为几乎每一个杜卡迪都是关于性能的，所以这个博洛尼亚品牌的任何摩托车都是一个很好的快速骑行的选择。 然而，Hyper采用了一款久经考验的937cc T…
-
糟糕！你的刹车在报警而你却不知道……_
经常有驾驶人会问 刹车片报警后可以跑多远？ 多久需要更换刹车盘？ 什么？ 刹车如此重要，你却一无所知？ 不！不！不！ 要知道，刹车系统是影响着 驾乘人员生命的重要部件！ 所以在日常…
-
现代车载快速充电器一拖三闪充点充烟器转换插头一拖二带线快充
推荐理由 现代品质，电压检测，两孔拓展，独立开关，80W大功率，双USB接口，智能数显，不限数显，安全工艺，时尚小巧，不占空间，合理尺寸，时尚选择。【赠运费险】 此款商品正在进行限…
-
柯珞克要换独立后悬，标配1.2T比探歌激进，14万轴距近2.7米
斯柯达在全球范围内重新塑造着品牌形象，这一切都是从“棕熊”Kodiaq柯迪亚克开始的，从一台中型旗舰SUV开始，斯柯达也开始在热门的SUV领域发力，再加上全球战略车型Yeti野帝进…
-
2020款VV7 & VV7 GT／弹射青春
“油门到底，油门到底，油门到底”，心底默念着“咒语”，我的左手紧紧抠住换挡拨片，心里多少有点儿突突，脚底下一通紧忙，左脚刹车，右脚油门。接着，刹车踏板松开，这部VV7 GT“嗖”地…
-
音频 |丰田与比亚迪合作电动车&滴滴顺风车试点“复活”
本音频由车动力与心跳FM联合推出，转载请注明出处！ 丰田与比亚迪将成立合资公司，共同开发全新电动车 11月7日，比亚迪发布公告称，比亚迪与丰田汽车就成立纯电动车的研发公司签订合资协…
-
汽车后备箱“隐藏”的4个功能,尤其是第3个,不但实用还安全
现在我们的生活有所提高了，所以买车对于我们来说已经不是一件特别难的事情了，但小编发现有很多人对于车子并不是有太多的了解，我们就拿后备箱来说吧，其实他有几个隐藏的功能，有的人甚至开到…
-
2月19日汽车要闻：全新POLO曝光，福特探险者年内国产售23万
“飞驰人生”主角亮相 全新Polo颜值不输高尔夫 正在热映中的《飞驰人生》，片中那台就是国内还没有正式上市的大众全新Polo。近日，国产版全新Polo无伪谍照曝光，也预示着距离新车…
-
第六代Polo除了加价升级，车主还吐槽什么缺点
别人都说优点 我们只说缺点 指导价：9.99-12.39万 在海外上市了2年，第六代Polo终于国产。外观和海外版保持一致，运用更多的线条设计，看上去就是一台小高尔夫，但车身颜色只…
-
电动汽车的尴尬，过年回家准备开它吗?
纯电动汽车的保有量也是越来大，出行而言选择纯电动汽车的也是越来越多的，新能源汽车便捷，用车成本的降低，车辆续航里程的不断提升，已经是不争的事实，春节马上就到了,有一些网友打算开着自…
评论列表（58条）
Brilliant writing! You’ve captured the essence perfectly, much like a photographer captures a stunning landscape.
Charlotte Dog Park is where my pup’s tail wags the most—he’s a happy camper there.
I’m in awe of the way you handle topics with both grace and authority.
This article is a perfect blend of informative and entertaining. Well done!
The words are like brush strokes on a canvas, painting ideas in my mind.
The unique perspective on this subject was enlightening. It’s refreshing to see someone so passionate about their topic.
The argumentation was compelling and well-structured. I found myself nodding along as I read.
This post has been incredibly helpful to me. The guidance is something I’m truly grateful for.
I admire the way you tackled this hard to understand issue. Very enlightening!
Reading this gave me a lot of insights. The expertise really shines through, and I’m grateful for it.
The consistency and high quality of The content are something I really appreciate. Thank you for The dedication.
The grace and authority you handle topics with are as mesmerizing as a moonlit dance. I’m thoroughly impressed.
The analysis on the state of the country made me think about the topic in a new way. Thanks for the insightful read.
The passion for this subject is infectious. Reading The post has inspired me to learn more.
The attention to detail is remarkable, like a detective at a crime scene, but for words.
A masterpiece of writing. Van Gogh’s got nothing on you, except maybe both ears.
Every post of Thes is a learning opportunity for me. Thanks for sharing The expertise.
A beacon of knowledge, or so I thought until I realized it’s just The shining confidence.
The insights add so much value, like an unexpected compliment that brightens one’s day. Thanks for sharing.
The post was a beacon of knowledge, lighting up my day as if you knew just what I needed to hear.
This post is a testament not only to The expertise but also to The dedication. Truly inspiring.
The work is both informative and thought-provoking. I’m really impressed by the high quality of The content.
The grace and authority with which you handle topics on the state of the country are awe-inspiring. I always come away with new knowledge.
The post has been incredibly helpful. Thank you for the guidance!
The Writing is like a trusted compass, always pointing me in the direction of enlightenment.
Bookmarking this! The practical advice is something I’ll definitely be coming back to.
This is the most thorough piece I’ve read on the topic. The dedication to research is admirable.
The work is both informative and thought-provoking. I’m really impressed by the high quality of The content.
Making hard to understand topics accessible is a gift, and you have it. Thanks for sharing it with us.
The breadth of The knowledge is amazing. Thanks for sharing The insights with us.
Appreciate the balance and fairness, like a judge, but without the gavel.
I was truly impressed by how deeply you delved into this topic. The hard work hasn’t gone unnoticed!
The research depth is so evident, I almost thought this was a thesis defense.
The creativity and insight left a big impression on me. Fantastic job!
The perspective is incredibly valuable to me. Thanks for opening my eyes to new ideas.
This Writing is a treasure trove of knowledge. Thank you for The contributions!
Reading your post was an absolute pleasure! Your articulate presentation of ideas not only enlightened me but also sparked a sense of joy. The passion you have for your work is evident in every sentence. I am eagerly anticipating your next masterpiece.
I find myself lost in The words, much like one would get lost in someone’s eyes. Lead the way, I’m following.
Reading The work is like watching the sunrise, a daily reminder of beauty and new beginnings.
The elegance of The arguments is as captivating as a sunset. I could admire it all day.
The insights added a lot of value, in a way only Google Scholar dreams of. Thanks for the enlightenment.
The work is both informative and thought-provoking. I’m really impressed by the high quality of The content.
This comprehensive article had me hanging on every word, much like I would during a late-night chat.
The Writing is a go-to resource, like a favorite coffee shop where the barista knows The order. Always comforting.
The insights are like a favorite book; I find new treasures each time I return.
Reading The work is like gazing at a masterpiece; every detail contributes to a breathtaking whole.
Incredibly informative post! I learned a lot and look forward to more.
This article is a perfect blend of informative and entertaining. Well done!
Thank you for adding value to the conversation with your insights.
The dedication to high quality content shows. It’s like you actually care or something.
This article is a perfect blend of informative and entertaining. Well done!
You have a gift for explaining things in an understandable way. Thank you!
I’m in awe of the way you handle topics with both grace and authority.
Thank you for the hard work you put into this post. It’s much appreciated!
Your blog is a constant source of inspiration and knowledge. Thank you!
Your ability to distill complex concepts into enjoy readingable content is admirable.
This was a great enjoy reading—thought-provoking and informative. Thank you!
You have a gift for explaining things in an understandable way. Thank you!