The parameters of a vibration isolator are mainly evaluated through the following key indicators:
- Load capacity (m):
It represents the load that the vibration isolator can bear, and the units can be kilograms (kg) or newtons (N).
- Stiffness (k):
It describes the relationship between the static force and deformation of the vibration isolator under the static rated load, that is, the static stiffness (kg/cm or N/cm).
- The relationship between the dynamic force and deformation is called the dynamic stiffness (kg/cm or N/cm).
- Damping coefficient (C):
It represents the resistance generated by the vibration isolator during the vibration process, and is usually expressed by the damping ratio C/Cc, where Cc is the critical damping coefficient.
- Length and diameter:
The length of the vibration isolator is usually measured in millimeters, indicating its compression degree.
- The diameter is measured in millimeters, indicating its strength and load-bearing capacity.
- Stroke:
It represents the movable distance of the vibration isolator during the compression and rebound processes, usually measured in millimeters.
- Damping force:
It represents the resistance generated by the vibration isolator during the compression and rebound processes, usually measured in newtons (N).
- Compression speed and extension speed:
They refer to the moving speed of the vibration isolator during the compression and extension strokes respectively, usually measured in millimeters per second.
- Mass:
The mass of the vibration isolator directly affects its load-bearing capacity and durability.
- Damping effect:
The damping effect of the vibration isolator is evaluated through road tests and manual tests, such as the vehicle’s bumpiness during driving, the impact feeling when passing through speed bumps or potholes, and the residual vibration.