Hyperelastic marmem composite friction dumper

A technology of friction damper and memory alloy, which is applied in the direction of spring/shock absorber, spring, shock absorber, etc., can solve the problems of fluid damper leakage, degradation of mechanical properties, poor fatigue resistance, etc. Restore the effect of large deformation and stable performance

Inactive Publication Date: 2005-03-23
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this type of damper still has certain limitations in engineering applications, such as poor fatigue resistance of viscoelastic materials, degr...

Method used

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  • Hyperelastic marmem composite friction dumper
  • Hyperelastic marmem composite friction dumper
  • Hyperelastic marmem composite friction dumper

Examples

Experimental program
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Embodiment Construction

[0017] The superelastic shape memory alloy composite friction damper of the present invention comprises a left tie rod 1, a front cover 2, an outer cylinder 3, an outer slide bar 4, an inner slide bar 5, a superelastic shape memory alloy wire 6, a rear cover 8, and a right pull rod 9 Wherein, on the outside of the inner slide bar 5, more than two outer slide bars 4 are arranged symmetrically to the axis of the inner slide bar 5, and the outside of the inner slide bar 5 and the inner side of the outer slide bar 4 are wavy along the axial direction , and the inner sliding bar 5 and the outer sliding bar 4 are meshed with each other by the wavy contact surface; outside the whole body composed of the inner sliding bar 5 and more than two outer sliding bars 4, a superelastic shape memory alloy wire is used along its outer circumference 6 Wrap and tie tightly, and put the bundled whole into the outer cylinder 3; the two ends of the outer cylinder 3 are respectively provided with a fr...

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Abstract

The invention refers to a super-elasticity shape memory alloy compound friction damper. It is a alter severity damper which can decrease the structure bounce. A inside slide bar and four outside slide bars are enlaced together according to concave contact face is joggled to the convex contact face each other by super-elasticity shape memory alloy thread, which is form to the main body of damper actualize all of the function. Then the main body is equipped in the exterior structure which is made up of front cover, rear cover and exterior structure. At last left coupling bar is connected to the front cover of the exterior structure, and right coupling bar is connected to the inside slide bar of the main body.

Description

technical field [0001] The invention relates to an engineering structure damping control device, in particular to a damper for inhibiting the structural vibration response of a civil engineering structure under the action of earthquake and wind vibration. Background technique [0002] At present, dampers developed using materials such as viscoelastic materials, viscous fluids, and metals with low yield points are installed on engineering structures, which can reduce the vibration response of the structure under earthquake and wind vibration, so as to reduce the damage caused by vibration to the structure. However, this type of damper still has certain limitations in engineering applications, such as poor fatigue resistance of viscoelastic materials, degradation of mechanical properties including damping characteristics caused by environmental influences, and possible leakage of fluid dampers And other issues. [0003] In order to develop a dampe...

Claims

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Application Information

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IPC IPC(8): E04B1/98F16F9/00F16F15/02
Inventor 李爱群左晓宝陈庆福
Owner SOUTHEAST UNIV
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