Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Battery bin anti-collision beam topological optimization method based on equivalent static load method

A topology optimization and static load technology, applied in the field of mechanical equipment design, can solve problems such as large randomness, and achieve the effect of improving optimization efficiency

Pending Publication Date: 2018-02-23
开沃新能源汽车集团股份有限公司
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of design method relies heavily on the experience of engineering designers and is more random

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Battery bin anti-collision beam topological optimization method based on equivalent static load method
  • Battery bin anti-collision beam topological optimization method based on equivalent static load method
  • Battery bin anti-collision beam topological optimization method based on equivalent static load method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] The core of the present invention is to provide a battery compartment anti-collision beam topology optimization method based on the equivalent static load method, specify the time step of the equivalent static load extraction point, take the mass of the anti-collision beam as the objective function, and use the displacement as a constraint. The continuous iterative optimization process finally obtains the optimal anti-collision beam structure form. In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] The invention obtains the dynamic load of the anti-collision beam by simulating the side collision working condition of the anti-collision beam of the battery compartment, and calculates...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a battery bin anti-collision beam topological optimization method based on an equivalent static load method. Time steps of equivalent static load extraction points are cleared,the mass of an anti-collision beam is adopted as a target function, displacement is adopted as constraint, and the optimal anti-collision beam structural mode is finally obtained through uninterrupted iterative optimization process. In other technical fields, extraction of equivalent static loads is performed in the whole dynamic process, only first six time steps before collision ending are extracted from the equivalent static loads, the optimization efficiency is improved, and by adopting topological optimization based on a variable density method, the passenger car battery bin anti-collision beam with the optimal structure can be obtained finally.

Description

Technical field: [0001] The invention relates to a topology optimization method for an anti-collision beam of a battery compartment based on an equivalent static load method, which belongs to the field of mechanical equipment design. Background technique: [0002] In traffic accidents, side collision is the most frequent accident form, and the number of accidents and deaths caused by side collision is second only to front collision. The national standard "GBT 31498-2015 Electric Vehicle Post-Collision Safety Requirements" puts forward requirements for battery packs on physical protection and electrolyte leakage after collision. Since the power battery is installed between the lower part of the bus chassis and the battery side door, and there is not enough space to generate enough deformation to absorb the collision energy, it is necessary to install an anti-collision beam between the power battery and the battery door to prevent side impact The contact and extrusion of the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 周维飞张勇张蒙阳
Owner 开沃新能源汽车集团股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com