Acoustic glass in a car - features, advantages of installation

While the vehicle is in motion, the driver and passengers are exposed to noise. And, as you know, extraneous sounds in the frequency range of 20 - 1500 Hz negatively affect the human condition. While driving, you want to relax as much as possible and focus all your attention on the road. And it turns out that you have to pay attention to the noise from the engine, chassis and wind from the street. This is why acoustic glass is used in many modern vehicles. Consider what kind of device it is and what advantages it has in comparison with the usual one.

Extraneous noise during the trip may occur for several reasons:

1) the work of the motor;

2) the sound of the exhaust system;

3) friction of tires;

4) the noise of the chassis;

5) aerodynamics;

6) the general noise of the highway.

Against the general background, the best noise insulation is observed in executive class cars and top-end models. The material that transmits sound in the car better than anyone else is glass. Therefore, the designers are trying to constantly improve it. Modern acoustic glass can reduce the noise level in a car by 4-10 decibels. When paired with other soundproofing solutions, acoustic glass can isolate the driver and passengers from noise.

Features

At the initial stage of the development of acoustic glasses, the specialists took a simple path - they increased the thickness of the product. With this, it was possible to reduce the level of aerodynamic vibration. But along with this, the weight of the car also increased, which required changes to the design of the vehicle.

The most promising manufacturing technology is the production of 2-layer glasses with an inner PVB film from a polymer. Using this material, manufacturers have been able to create an acoustic barrier without increasing the thickness of the glass. Such products show high efficiency in the automotive industry.

Benefits

In the market, ordinary triplex is more widespread. In comparison, acoustic glass has physical strength and can suppress background noise. This reduces the risk of damage to the product from stones and other road debris. The main purpose and advantage of acoustic glass is comfort during vehicle operation. In order for the effect to be as noticeable as possible, manufacturers place acoustic glasses not only in the front.

If the standard windshield is already worn out and requires replacement, you should pay attention to the more expensive, acoustic one. Of course, you will have to overpay a little, but the effect of using such glass will be more noticeable. It is best to assess the level of sound insulation in the car before this. It is possible to distinguish ordinary triplex from acoustic glass by means of marking. But even it may differ from manufacturer to manufacturer.

For example, Ford uses a patented symbol and a special Sound Screen lettering on the glass. But many other manufacturers use a simple "Acoustic" lettering or an "Ear" icon.

Bottom line. Acoustic glass is used to reduce the noise level in the passenger compartment while driving. They can be distinguished by their special markings.

Source: https://car.ru/