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Equivalent modeling method of vibration damping device with directivity for random vibration simulation

A vibration damping device, random vibration technology, applied in the field of effect modeling

Active Publication Date: 2021-09-17
JIANGSU RCT POWER ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the existing random vibration simulation methods, there is no good equivalent modeling method for shock absorbers to more accurately evaluate whether the products added with shock absorbers meet the strength requirements during transportation. The present invention aims to make up for this blank

Method used

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  • Equivalent modeling method of vibration damping device with directivity for random vibration simulation
  • Equivalent modeling method of vibration damping device with directivity for random vibration simulation
  • Equivalent modeling method of vibration damping device with directivity for random vibration simulation

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Experimental program
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Effect test

Embodiment 1

[0027] Such as Figure 1-2 As shown in , an equivalent modeling method for random vibration simulation with a directional vibration damping device includes the following steps:

[0028] Step 1. Establish the model of the energy storage bracket with the vibration damping device, and import the grid division software to divide the grid;

[0029] The linear connection of each component in the model obtained in step 2 and step 1 is established;

[0030] Step 3: Set conventional material parameters and assign the model obtained in step 1; conventional material parameters include elastic modulus, Poisson's ratio, density and damping ratio. The principle of setting is to measure the parameters of the material and then input them into the simulation software ;The starting point of the third design step is that the materials of the components of the energy storage bracket are different, and the unit types are also different. Therefore, it is necessary to assign corresponding material ...

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Abstract

The invention discloses an equivalent modeling method of vibration damping device with directivity for random vibration simulation, which comprises the following steps of: 1, establishing a model of an energy storage bracket with the vibration damping device, and importing grid division software to divide grids; 2, establishing linear connection of all parts in the model obtained in the step 1; 3, setting conventional material parameters and giving the parameters to the model; 4, creating equivalent models for different types of vibration reduction devices, and acquiring and setting material parameters of the equivalent model; 5, loading boundary conditions; and 6, carrying out modal analysis or frequency response analysis or random vibration analysis, and evaluating the reliability of the damping device. Model selection reasonability of the vibration reduction devices can be evaluated by effectively utilizing a simulation means, the simplified vibration reduction devices can be directly used for random vibration simulation of the vehicle-mounted energy storage system, and whether the strength of each area of a structural member of an energy storage device meets the requirement or not can be visually judged according to the simulation result.

Description

technical field [0001] The invention belongs to the technical field of energy storage, and in particular relates to an equivalent modeling method for random vibration simulation of a vibration damping device with directivity. Background technique [0002] With the rapid development of the energy storage industry, the application of energy storage equipment is becoming more and more extensive. The original energy storage products are mostly used in fixed positions, and the structural strength design requirements for energy storage products only need to meet the static strength requirements. With the development of energy storage products, vehicle-mounted energy storage products are becoming more and more popular. Due to the heavy weight and high size of vehicle-mounted energy storage products, the product is prone to resonance during the vehicle-mounted application process, resulting in damage to structural parts such as brackets. It is necessary to introduce vibration reducti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/17G06F30/23G06F119/14
CPCG06F30/17G06F30/23G06F2119/14Y02T90/00
Inventor 杨加松洪德映
Owner JIANGSU RCT POWER ENERGY TECH CO LTD
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