Non-linear spring device based on shear thickening adhesive

Abstract

The invention provides a non-linear spring device based on a shear thickening adhesive. The non-linear spring device comprises a support and a fixing clamp. The support is fixedly connected with the fixing clamp. Multiple sets of composite spring pieces are fixed to the support, each set of composite spring piece is composed of an upper piece and a lower piece, the lower ends of the upper pieces and the upper ends of the lower pieces are aligned and then fixedly connected with a middle force-bearing plate, the free ends of the upper pieces and the free ends of the lower pieces are fixedly connected with the support, and a force-bearing rod is fixed to the vertical direction of the middle force-bearing plate. Each composite spring piece comprises an inner layer, a middle layer and an outer layer, wherein the inner layer and the outer layer are metal layers, and the middle layer is the shear thickening adhesive. The non-linear spring device is reasonable in structure, and has the following advantages that the rigidity non-linear characteristic is obvious, and the gradual-increase rigidness characteristic change trend is obvious within a certain condition range; the damping characteristic is obvious, redundant energy can be dissipated in time through the special mechanical performance of the shear thickening adhesive, the excellent damping performance is shown, and the damping effect is achieved.

Description

Technical field [0001] The invention belongs to a mechanical transmission device, and particularly relates to a non-linear spring device. Background technique [0002] As a common component, spring has many performance requirements in engineering applications. Although most non-linear springs have been used in practice, their nonlinear characteristics are not obvious under the action of alternating stress, the ability of independent adjustment of nonlinear stiffness is poor, and most of the current springs have poor damping performance. In the actual use process of some engineering fields, nonlinear springs are required to have obvious damping and stiffness characteristics and have the ability of autonomous coordination. Summary of the invention [0003] In order to solve the shortcomings of the prior art, a non-linear spring device based on shear thickening glue is provided. This spring device is based on the unique mechanical properties of the shear thickening glue, has a reaso...

AI Technical Summary

Problems solved by technology

At present, although most nonlinear springs have been applied in practice, the effect of their nonlinear characteristics is not obvious under the action of alternating stress, the self-adjusting ability of nonlinear stiffness is poor, and most of the current springs have poor damping performance.

Images