1. Nonlinear Characteristics
Variable Stiffness: Wire rope isolators possess nonlinear variable – stiffness characteristics. Their stiffness changes with the variation of the load, presenting a soft characteristic. Under the action of an external load, the radial curvature radius of the wire rope changes, resulting in a nonlinear relationship between stress and strain.
Variable Damping: They also have nonlinear damping characteristics, and the damping changes with the variation of the external excitation frequency. This characteristic enables them to effectively suppress the resonance peak and provide good vibration isolation effect after passing through the resonance point.
2. Excellent Vibration Reduction and Impact Resistance Performance
By utilizing the friction and deformation between steel wires to generate nonlinear damping, wire rope isolators can significantly absorb vibration energy. Under the action of impact loads, the stiffness of the wire rope isolator softens, which can effectively isolate the impact.
3. Strong Environmental Adaptability
They can work normally in harsh environments such as high temperature, low temperature, and chemical pollution, and have good anti – aging and corrosion – resistant properties.
4. Diverse Installation Methods
They can meet the needs of different equipment and scenarios, and have three – dimensional vibration isolation effects.
5. Other Characteristics
They have advantages such as low natural frequency, wide – frequency vibration isolation, and high – and low – temperature resistance. They can withstand shear, roll, and tensile – compressive loads.
Selection of Raw Materials
1. Wire Rope Material
High – strength wire ropes are usually adopted, such as 1Cr18Ni9Ti stainless steel wire ropes. This material has good fatigue resistance, radiation resistance, and high – and low – temperature resistance.
Parameters such as the diameter, number of strands, winding method, and size of the wire rope will affect the stiffness and damping characteristics of the vibration isolator.
2. Fixing Plate Material
The fixing plate is generally made of high – quality steel and undergoes surface electroplating treatment. In special cases, 1Cr18Ni9Ti stainless steel can also be used to make the fixing plate.
3. Other Materials
Aluminum alloy fixing plates: The density of aluminum alloy is relatively low, approximately 2770 kg/m³. Compared with traditional steel pressure plates, using aluminum alloy pressure plates can significantly reduce the overall weight of the wire rope isolator. This is of great significance for some application scenarios that are sensitive to weight, such as aerospace and vehicle – mounted equipment.
In conclusion, wire rope dampers possess unique nonlinear characteristics and good environmental adaptability. The selection of raw materials should be determined according to specific application scenarios and performance requirements.
The “NeoEast” wire rope isolator provides customized services to customers worldwide and has been widely applied in fields such as aerospace, vehicles, and ships.