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In order to accelerate the vibration attenuation of the frame and body and improve the ride comfort of the vehicle, vibration absorbers are installed in the suspension system of most automobiles. Both the shock absorber and the elastic element are installed in parallel.

Hydraulic shock absorbers are widely used in vehicle suspension systems. The principle of the hydraulic shock absorber is that the oil in the shock absorber shell flows repeatedly from one cavity to another through some narrow cavities when the piston moves in the cylinder cylinder when the driver and the bridge move reciprocating relative to each other. At this time, the friction between the hole wall and the oil and the internal friction of the liquid molecule form a damping force to the vibration, so that the vibration energy of the body and the frame is converted into heat energy, which is absorbed by the oil and shock absorber shell, and then emitted into the air. The damping force of the shock absorber increases or decreases with the relative velocity of the frame and the axle, and is related to the viscosity of the oil. Therefore, it is required that the viscosity of the oil used in the shock absorber should be as little as possible affected by the temperature change, and has the properties of anti-vaporization, anti-oxidation and non-corrosion to various metal and non-metal parts.

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    • By 袁春凤 (Tiffany)
      What is an automobile shock absorber?
      In order to accelerate the vibration attenuation of the frame and body and improve the ride comfort of the vehicle, vibration absorbers are installed in the suspension system of most automobiles. Both the shock absorber and the elastic element are installed in parallel.
      Hydraulic shock absorbers are widely used in vehicle suspension systems. The principle of the hydraulic shock absorber is that the oil in the shock absorber shell flows repeatedly from one cavity to another through some narrow cavities when the piston moves in the cylinder cylinder when the driver and the bridge move reciprocating relative to each other. At this time, the friction between the hole wall and the oil and the internal friction of the liquid molecule form a damping force to the vibration, so that the vibration energy of the body and the frame is converted into heat energy, which is absorbed by the oil and shock absorber shell, and then emitted into the air. The damping force of the shock absorber increases or decreases with the relative velocity of the frame and the axle, and is related to the viscosity of the oil. Therefore, it is required that the viscosity of the oil used in the shock absorber should be as little as possible affected by the temperature change, and has the properties of anti-vaporization, anti-oxidation and non-corrosion to various metal and non-metal parts.

    • By 袁春凤 (Tiffany)
      Shock absorber
      In order to accelerate the vibration attenuation of the frame and body and improve the ride comfort of the vehicle, vibration absorbers are installed in the suspension system of most automobiles. Both the shock absorber and the elastic element are installed in parallel.
      Hydraulic shock absorbers are widely used in vehicle suspension systems. The principle of the hydraulic shock absorber is that the oil in the shock absorber shell flows repeatedly from one cavity to another through some narrow cavities when the piston moves in the cylinder cylinder when the driver and the bridge move reciprocating relative to each other. At this point, the friction between the hole wall and the oil and the friction between the liquid molecules form a damping force to the vibration, so that the vibration energy of the body and the frame can be converted into heat energy, which is absorbed by the oil and shock absorber shell, and then dispersed into the air. The damping force of the shock absorber increases or decreases with the relative velocity of the frame and the axle, and is related to the viscosity of the oil. Therefore, the viscosity of the oil used in the shock absorber is required to be as little as possible affected by temperature changes: and has the properties of anti-vaporization, anti-oxidation and non-corrosive to various metal and non-metal parts.
    • By 袁春凤 (Tiffany)
      Basic knowledge of shock absorbing rubber products
      1. Static stiffness: refers to the ratio of the change of pressure (or tensile force) to the change of displacement in a given displacement range. The static stiffness must be measured within a certain displacement range. The static stiffness values measured in different displacement ranges are different, but some families require the change curve measured in the whole displacement range.
      2. Dynamic stiffness: It refers to the ratio of the change of pressure (or tensile force) to the change of displacement of damping rubber in a certain displacement range and a certain frequency.
      3. dynamic magnification: the ratio of the dynamic stiffness to the static stiffness measured by the damping rubber in a certain range of displacement.
      4. Loss coefficient: There is a phase difference between the deformation of rubber and the stress of rubber in the course of the force acting on damping rubber, and the stress of rubber is generally ahead of the phase angle of the deformation of rubber.
      5. Torsional stiffness: refers to the ratio of torsional moment to torsional angle of damping rubber within a certain range of torsional angle.
      6. Durability: It refers to the number of times of vibration when the rubber is in good condition after n times of reciprocating vibration under certain preloading load, amplitude and vibration frequency in a certain direction.Thanks for the help and support of Chongqing Feilong Jiangli Auto Parts technical department.
       
    • By Erica Zhu Feilong Jiangli
      The greater the damping force of the shock absorber, the faster the vibration is reduced, but the effect of the parallel elastic elements can not be fully exerted. At the same time, the excessive damping force may also lead to damage to the connecting parts and frame of the shock absorber. In order to solve this contradiction between elastic elements and shock absorbers, the following requirements are put forward for shock absorbers.
      (1) In the compression stroke of the suspension, the damping force of the shock absorber should be small so as to make full use of the elasticity of the elastic elements to mitigate the impact.
      (2) In the suspension stretching stroke (the distance between the bridge and the frame) the damping force of the shock absorber should be large in order to reduce the vibration rapidly.
      (3) When the relative speed between the axle (or wheel) and the frame is too high, the shock absorber should be able to automatically increase the area of the liquid flow passage, so that the damping force is always within a certain limit to avoid excessive impact load.
      Cylinder shock absorber is widely used in automobile suspension system, and it can reduce vibration in compression and stretching stroke. It is called bidirectional action shock absorber, and a new type of shock absorber is adopted, which includes air-filled shock absorber and resistance adjustable shock absorber.

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