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Impact-resisting damping device with multi-freedom-degree high-damping viscoelastic damping semi-spheres

A vibration damping device, high damping technology, applied in the direction of elastic shock absorber, non-rotational vibration suppression, etc., can solve the problems of heavy additional weight of vibration damping device, low spring damping coefficient, spring prone to tremor, etc., to achieve damping and vibration reduction Outstanding effect, increased structural damping, and small additional weight

Active Publication Date: 2014-02-05
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vibration isolation system effectively reduces the impact of the random vibration environment in the 20Hz to 2000Hz frequency band on the crystal oscillator, but the spring damping coefficient is too low, the ability to consume energy is limited, and it is not conducive to configuring the best damping ratio; the vibration isolation device There are negative factors brought by multiple degrees of freedom, which makes the vibration isolation device suffer from serious resonance in the process of random vibration; at the same time, springs with low stiffness coefficients are prone to tremors, making it difficult to build a stable mechanical structure ; The additional weight of the vibration damping device is large, and the spring installation is welded, which is difficult to operate; the vibration damping direction is single, and the degree of freedom is small

Method used

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  • Impact-resisting damping device with multi-freedom-degree high-damping viscoelastic damping semi-spheres
  • Impact-resisting damping device with multi-freedom-degree high-damping viscoelastic damping semi-spheres
  • Impact-resisting damping device with multi-freedom-degree high-damping viscoelastic damping semi-spheres

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0035] refer to Figure 2 to Figure 12 , Figure 2 to Figure 12 It is the accompanying drawing of the preferred embodiment of the present invention. As can be seen from the figure, the multi-degree-of-freedom high-damping viscoelastic vibration-damping hemispherical anti-shock vibration-damping device of the present invention consists of a front positioning seat, a vibration-damping cavity bottom plate and a vibration-damping cavity rear plate. The damping base 1, two side covers 2 of the damping chamber, the front cover 3 of the damping chamber and the upper cover 4 of the damping chamber are assembled into a closed hexahedron device through screws 6, and the inside is the inner cavity of the mechanical structure of the damping device The inner wall of the mechanical stru...

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Abstract

An impact-resisting damping device with multi-freedom-degree high-damping viscoelastic damping semi-spheres is characterized in that the damping device is a sealed hexahedron device combined by a damping base, two damping cavity lateral covers, a damping cavity front cover and a damping cavity upper cover. A mechanical structural component inner cavity is formed in the vibration damper. The damping semi-spheres are attached to the entire inner wall of the mechanical structural component inner cavity. A damping cavity for mounting damping parts is formed in vibration damper. The damping base comprises a front positioning seat, a damping cavity base plate and a damping cavity rear plate. Each semi-sphere is made of high-viscoelasticity, high-damping and multi-freedom-degree polyether urethane materials. By the damping device, normal operation of highly-sensitive equipment under vibration and impact can be guaranteed.

Description

technical field [0001] The invention relates to a vibration damping device, in particular to a multi-degree-of-freedom high-damping viscoelastic vibration-damping hemispherical shock-resistant and vibration-damping device. Background technique [0002] At present, viscoelastic damping materials and their products have been widely used in vibration reduction and noise control of instrumentation, navigation equipment and electronic systems on rockets, missiles, satellites, aircraft, ships and vehicles. The viscoelastic material shock absorber has both buffering and energy dissipation functions, high frequency vibration isolation efficiency, and relatively large damping can well suppress the resonance peak. In recent years, great progress has been made in the design of damping and vibration reduction structures and the application research of viscoelastic damping materials, and a large number of engineering application problems have been solved. [0003] At present, most domes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/04F16F7/12
Inventor 叶美凤李唐赵建波吕德胜刘亮
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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