Wire rope vibration isolator is a kind of vibration damping element with a wide range of applications. It is mainly used in various machinery, automobiles, railway locomotives, water vehicles, airplanes and other aircraft. The installation of vibration damping components under the equipment-wire rope vibration isolators is currently the most widely used effective measure for vibration control in engineering. After installing this kind of damping element, it can really reduce the transmission of vibration and impact. As long as the damping components are selected properly, the damping effect can be above 85%-90%, and it is not necessary to use a large foundation. For general medium and small equipment, foundation screws and foundations are not even needed, as long as the ordinary floor can withstand the static load of the equipment.
The wire rope vibration isolator is made by winding a wire rope in a spiral shape and fixing it between two metal plates arranged along a nut. Its stiffness and damping depend on the diameter, number of strands, number of turns, winding method and size of the wire rope. It is a new type of vibration isolator with nonlinear characteristics and dry friction damping. It uses a steel wire rope wound in a certain direction as an elastic element with multiple strands of steel wire, which has obvious hysteresis property. The energy dissipation comes from friction, squeezing, and slippage between steel wires.
When the amplitude of excitation and impact is large enough, internal friction occurs between the strands of the vibration isolator wire rope, and the movement direction of the wire rope is opposite, which consumes a lot of energy and attenuates the vibration and impact strength. When the amplitude of the vibration is small, the strands of the steel wire rope are twisted together due to friction, and no relative slip occurs, thus exhibiting good linear elasticity and maintaining the stability of the system. Therefore, the wire rope vibration isolator is adapted to the complex and changeable conditions of vibration and shock. Its adaptive ability is particularly strong, which can effectively avoid strong resonance and impact, thereby playing a role in buffering and isolating vibration.
