The closing sound of some luxury cars is really different, and it has been specially designed to give people a sense of luxury.
It's as if: Every edge and corner of the 8848 phone is carefully crafted.
First of all, some foreign luxury car brands do have special research on the sound of closing doors.
Gloriapei published a paper in the journal Sales and Marketing (Channel Edition), "Unloading Eight Pieces, Consumers Know You Too," said.
At the end of the 1990s, DaimlerChrysler created a whole new department within the company, whose function was not design, not manufacturing, nor marketing, but researching and making the sound of opening and closing doors.
This is because premium cars need a representative closing sound, and as soon as you hear this sound, you will know what kind of car it feels.
Pang Jian, vice president of Changan Automotive Engineering Research Institute, also said in an interview with NetEase Auto.
NVH can be divided into 3 stages: the first stage is the most primitive stage, that is, to reduce the vibration; the second stage is to create sound quality; the third stage is the DNA stage of sound, designing the unique sound of the car.
When most car companies are still in the 1st and 2nd stages, many luxury brands have entered the 3rd stage, the design of sound.
In addition, many consumers will indeed judge the quality of the car, the quality and the like through the sound of closing the door.
Fan Wei and Meng Zihou published a paper in the Proceedings of the 2006 Audio Engineering Academic Exchange Conference, "The Impact of Sound Quality of Automobile Doors on Automobile Consumer Psychology".
As mentioned above: When people buy a car, they will take the closing sound of the car as one of the criteria for measuring the quality of the car to judge the grade of the car.
It's a bit like: buy watermelon, some people just like to "gong dong gong dong" so to knock twice, listen to the sound.
This consumption orientation also forces car companies to make some efforts on the sound of closing doors, especially luxury car companies, in order to keep their sense of luxury, everything is better than others, right? The sound of closing the door is more focused.
The quality of the closing sound is generally determined by loudness, sharpness, and vibration.
Li Jianyou has a paper in the journal "Beijing Automobile", "Analysis of the Influence of Automobile Seals on the Sound Quality of Car Doors".
As mentioned above: In general, the smaller the loudness, the lighter it sounds.
Loudness is between 25 and 28sone (Song), and the sound is comfortable; while the sharpness is generally between 2 and 2.5acum (Akm), and sharpness above 2.5acum will make people sound uncomfortable.
In words that people can understand, it is: is it thick or heavy? Stinging or not piercing? Is there a murmur? Is it a "gang"? Or "Boom"? Or "click"? Just listen to this kind of thing.
Chen Yu of Hunan University also has a master's thesis, which is shared with you, "Design and Development of Automotive Doors", which says.
A good closing sound has the following characteristics: thickness, low pitch, single impact, proper loudness, no metallicity, no resonance, and the sound quality of all doors on the car is consistent.
"Hey" to give a negative example, you listen: when the big iron gate in the countryside is closed, it is "bar", then "bar
The first "bang" down, the sound is very harsh, very ugly, like an iron bar hitting an iron bar, the collision is not over, still shaking over there, maybe it will hit again, hit two small ones. It sounds obviously uncomfortable anyway, right?
The closing sound of the luxury car is different.
For example: the closing sound of mercedes-benz big G, you think it is very dirty and original, people have used their brains to design, deliberately make it like this, the sound is crisp. What does a lot of people sound like? Like the sound of a gun being loaded.
This good closing sound is actually closely related to the size of the closing force, the structure of the sealing strip, the arrangement of the lock, the structural type, the layout and design of the door buffer block, and so on.
The seal is good, the main impact is the loudness in the sound quality.
Or the previous paper "Analysis of the Effect of Car Seals on the Sound Quality of Door Closing Doors", which is experimental.
Adjusting the compression load and compression amount of the sealing strip can reduce the loudness of the closing sound. The compression of the door opening seal is increased by 2mm, and the closing sound that can be heard in the car is reduced by 13.31sone.
Like the seals of some luxury cars are multi-layered, and the material is not the same as ordinary, in fact, it is a consideration in this regard.
Although a good closing sound can indeed bring grades to the car, if you judge the quality of the car from the sound of closing the door in turn, I think it may still be a bit arbitrary.
It's like a mobile phone: you can't say that it's not of good quality because it's particularly light in your hand; it's particularly heavy, and you think this phone is particularly valuable.
Moreover, everyone's evaluation of the closing sound is actually subjective, some feel good, some feel bad, the same car.
Chen Shuangbi and Chen Duanshi have a paper on the journal "Noise and Vibration Control", "Preference Evaluation of In-car Acoustic Quality Based on Psychoacoustic Parameters".
Above: People's feelings about the same sound are affected by different factors in physiology, psychology and psychoacoustics, etc., and have subjective preferences.
To put it simply: maybe the exact same closing sound is placed on the big G, you feel good, put on the Jetta, you feel that this thing is not saving some cost, there is not much feeling.
In addition, as mentioned earlier, the sound of the car opening and closing the door can be made and designed.
The closing sound is good, can only say that the manufacturer is indeed working hard in this piece, can not mean that it is as serious as this piece, the same effort, the same pile of money, the same effort.
In general, some luxury brands do pay attention to the closing sound of the car earlier, and the closing sound of such luxury cars is indeed different and better because of the special design and adjustment.
But the closing sound is not directly related to the quality, and I think it is not appropriate to say that it is good or bad just by the sound of closing the door.
Have you found that a slightly gentle closure of the car door is actually not closed? You have to "leverage" it hard to lock it, why design it like this?
Often there are people who close the car door when there is no light or heavy, friends and you just picked up the car back very happy, friends get off: "Goodbye, goodbye!" "Ping-pong."
"Oh" This really hurts or how, when the door is thrown so hard, will the car be broken for him?
Why would they do that? How to remind them in a way that is less hurtful? Will the ears of the people sitting inside have an impact? Will the person who is throwing the door outside be harmful?
These things, backstage asked too many friends, we only have to find it out, but also made a video.
Keyword: car door
If you want to see it, it is very simple, pay attention to the "spare tire car", and reply to the keyword "car door".
Every day will give you a piece of car practical small dry goods, text, audio, video have, pick your favorite version on it, "spare tire said car" waiting for you to play Oh.
bibliography
[1] Gloriapei.
[2] Dr. Pang Jian, an expert at Changan NVH: The noise is lower than that of the joint venture car. NetEase Auto
Fan Wei,Meng Zihou. The Influence of Sound Quality of Automobile Doors on Automobile Consumer Psychology[C]//Proceedings of the 2006 Audio Engineering Academic Exchange Conference. [Publisher unknown], 2006.
LI Jianyou. Analysis on the influence of automotive sealing strip on the sound quality of door closing[J].Beijing Automobile, 2017.
CHEN Yu. Design and development of automotive doors[D].Hunan University,2014.
Chen Shuangqi,Chen Duanshi. Preference evaluation of in-car acoustic quality based on psychoacoustic parameters[J].Noise and Vibration Control,2005.