The roughness of the road surface, the structure of the road surface and the material of the road surface are the factors that affect the size of the tire noise. In addition, the width of the tires and hubs also restricts the difficulty of noise reduction. Wide tires will become louder due to the wider bearing surface. Compared to those tires with narrower dimensions, wide tires will crowd out more air and push More "air masses" produce shocks.
For the front engine of the engine, passengers sitting in the back row will be more likely to notice the rolling noise of the tire, because the rear part of the vehicle body is relatively less affected by engine noise and wind noise. At this time, fetal noise will be highlighted. So when we judge the fetal noise situation, most of them choose to sit in the back row to screen.
The rolling noise that is perceived by the human ear is emitted from the sound source and passes through the air medium and continuously vibrates into the ear. Due to changes in certain characteristics and factors, the fetal noise will be large and small, which can be summarized as a combination of the road and tire. Pavement structure and materials have a significant impact on fetal noise. For example, when the vehicle passes damp roads, the decibel level of noise is significantly higher than the level at which the vehicle passes through dry roads.
The pattern design of the tire itself also plays a dominant role for fetal noise. For example, a pattern groove of a tire is 90 degrees, and the same design pattern of a vehicle assembly has a sharp angle design. We can also easily compare the 90-groove pattern tires to be more serious in terms of fetal noise.
The wedge-ribbed tire is not stable enough when driving, because it will have a relatively large deformation during the rotation, it will produce air vibration when the air is pushed and squeezed, and it will pass through the air when the vibration is strong. The media arrived at our ear drums.
Wide tire noise, friction surface increases, noise will increase. The same applies to the pattern design. Many high-performance tires generally use larger “people†drainage patterns. The series we are most familiar with is the “flying bootsâ€, and the pattern grooves of these tires will continue to squeeze. Pressing, squeezing air, the resulting vibration must be greater than the ordinary pattern design, if the body seal noise resistance is not good, then fetal noise will directly affect the vehicle's ride comfort.
The size of the tire directly determines the tire noise level, and the design of the tread pattern is also a big factor that can not be ignored because the grooves between the treads will squash and push the air to generate vibrations, and the air pumping effect will also deform the pattern. It is compression, it may be swelling.
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