How does shock absorber / shock struts Guarantee the stability of your car
Concept：
The shock absorber is used to suppress the shock and the impact from the road surface when the spring rebounds after shock absorption. Widely used in automobiles, in order to accelerate the attenuation of the vibration of the frame and the body to improve the driving stability of the car.
working principle
In the suspension system, the elastic element vibrates due to the impact. In order to improve the ride comfort of the car, a shock absorber is installed in parallel with the elastic element in the suspension to dampen the vibration. The working principle is that when the frame (or body) and the axle vibrate and there is relative movement, the piston in the shock absorber moves up and down, and the oil in the shock absorber cavity repeatedly passes through a different cavity. The pores flow into another cavity. At this time, the friction between the hole wall and the oil and the internal friction between the oil molecules form a damping force on the vibration, so that the vibration energy of the car is converted into the heat energy of the oil, which is then absorbed by the shock absorber and released into the atmosphere. When the oil channel section and other factors remain unchanged, the damping force increases or decreases with the relative movement speed between the frame and the axle (or wheel), and is related to the oil viscosity.
(1) During the compression stroke (the axle and the frame are close to each other), the damping force of the shock absorber is small, so that the elastic effect of the elastic element can be fully exerted to ease the impact. At this time, the elastic element plays a major role.
(2) During the extension stroke of the suspension (the axle and the frame are far away from each other), the damping force of the shock absorber should be large, and the shock absorption should be rapid.
(3) When the relative speed between the axle (or wheel) and the axle is too large, the shock absorber is required to automatically increase the fluid flow, so that the damping force is always kept within a certain limit to avoid excessive impact load.
Product Usage
In order to accelerate the attenuation of the vibration of the frame and the body to improve the ride comfort (comfort) of the car, shock absorbers are installed inside the suspension system of most cars.
The shock absorption system of a car is composed of springs and shock absorbers. The shock absorber is not used to support the weight of the body, but is used to suppress the shock when the spring rebounds after shock absorption and absorb the energy of road impact. The spring plays the role of alleviating the impact, changing “one impact with large energy” into “multiple impact with small energy”, while the shock absorber gradually reduces the “multiple impact with small energy”. If you’ve ever driven a car with a broken shock absorber, you can experience the rippling bouncing of the car through every pothole and undulation, and the shock absorber is designed to dampen that bouncing. Without a shock absorber, the rebound of the spring will not be controlled, the car will have a serious bounce when encountering a rough road, and the tire will lose grip and tracking due to the vibration of the spring up and down when cornering.
Max Auto Parts Ltd is the top supplier of shock absorber parts , include piston rod , tube , sintered part , shims and spring .
Post time: May-25-2022