Design method of vibration clamp of lithium battery subrack based on CAE (Computer Aided Engineering)

Abstract

The invention discloses a design method of a vibration clamp of a lithium battery subrack based on CAE (Computer Aided Engineering). The design method comprises the following steps: A providing an initialization setting module; B providing pre-processing software, and importing the structural data of the vibration clamp into the pre-processing software of CAE; C providing a solver, and solving the first-order inherent frequency of the vibration clamp; D providing a comparison module; F when the test frequency is smaller than the inherent frequency target value, increasing the thickness of an L-shaped top plate; I when the test frequency is smaller than the inherent frequency target value, increasing the number of fasteners, and repeating the step B to the step D; and J when the test frequency is larger than or equal to the inherent frequency target value, considering that the vibration clamp meets the requirement. According to the design method, the purpose can be rapidly achieved, the most appropriate number of fasteners are used, the weight of the whole vibration clamp is reduced, the test service life of the vibration clamp is prolonged, and meanwhile the influence of the vibration clamp on the vibration test of the lithium battery subrack is reduced.

Description

technical field [0001] The invention relates to the technical field of lithium battery manufacture, in particular to a CAE-based design method for a vibration fixture of a lithium battery box. Background technique [0002] As we all know, vibration test refers to the test to evaluate the anti-vibration ability of the product in the expected use environment. The fixture of the product under test is a link that must be considered in the preparation process before the test. The fixture is a transition piece for connection or transfer. The quality of the fixture directly affects the quality of the test. [0003] For the vibration test of the lithium battery box, the traditional design process is that the structural engineer determines the shape, thickness, fixing method and position of the vibration fixture, and the size of the connection hole according to the actual installation situation of the lithium battery box and the specifications of the shaking table combined with exper...

AI Technical Summary

Problems solved by technology

[0004] However, whether the design of the lithium battery vibration fixture in the prior art is reasonable, the fixture itself has not passed the vibration test, and it is not known whether its dynamic stiffness and structural strength meet the test requirements

If the design of the vibration fixture is unreasonable, it is easy to make the test specimen be affected by the fixture, and the vibration test results will be distorted.

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