Integrated active and passive vibration isolator adopting composite dielectric elastic material and vibration isolation method thereof

Abstract

The invention provides an integrated active and passive vibration isolator adopting a composite dielectric elastic material and a vibration isolation method thereof. The vibration isolator comprises an upper end cover and a lower end cover, wherein an upper connecting piece and a lower connecting piece are respectively and fixedly connected with the upper end cover and the lower end cover by virtue of screws; a pre-stretched composite dielectric elastic film is formed by laminating a fiber core-sandwiched dielectric elastic material film and a single-layer dielectric elastic material film; the upper and lower surfaces of a fiber core-sandwiched film driving region are coated with conductive carbon paste, the composite dielectric elastic film in a non-driving region is wound between the upper end cover and the lower end cover, and a conductive lead is guided out through a double-faced conductive copper foil; a straight flange bearing and the center of the upper end cover are sleeved; a central shaft is sleeved into the straight flange bearing in a clearance fit manner, and is in threaded connection with the lower end cover; the upper and lower ends of a built-in compression spring and the upper and lower end covers are fixed together. The invention further discloses an vibration isolation method of the vibration isolator. The integrated active and passive vibration isolator has the characteristics of large deformation, high damping, drive-driven integrated vibration isolation control, simple structure, large application range and low cost.

Description

technical field [0001] The invention relates to the technical field of vibration isolators, in particular to an active-passive integrated vibration isolator and vibration isolation method using composite dielectric elastic materials. Background technique [0002] In the field of engineering technology, vibration phenomena abound. In most cases, the occurrence of vibration will cause various hazards: it will not only affect the function of precision instruments and equipment, but also reduce the processing accuracy and service life; it will also affect our quality of life, such as the vibration of a car will reduce the comfort of driving. Therefore, researchers have proposed various vibration suppression methods and designed various vibration isolators. However, traditional vibration isolators are difficult to meet the needs of large displacement vibration isolation and active-passive integrated vibration isolation at the same time. [0003] Dielectric elastic material is a...

AI Technical Summary

Problems solved by technology

However, these cylindrical actuators proposed so far are prone to bending deformation when excited by external loads and external high voltages, and are not easy to be used in vibration isolation control that requires high stability.

Moreover, most of these cylindrical actuators are only wound with a single layer of pre-stretched dielectric elastic film. Such a dielectric elastic film is prone to radial indentation in cylindrical actuators. Make the performance of the vibration isolator unstable in normal operation

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