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

CAE-based simulation detection method and simulation test system for fatigue life of automobile frame

A fatigue life and automobile frame technology, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of long required period, high cost, and difficulty in accurately estimating the fatigue life of the frame, and achieve optimal design , the effect of reducing dependence

Pending Publication Date: 2019-05-21
BEIDOU AEROSPACE AUTOMOBILE BEIJING CO LTD
View PDF3 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, traditional frame fatigue life prediction methods generally use actual prototype vehicles for laboratory bench fatigue tests or actual vehicle road tests, which are expensive and require a long period of time. It is difficult to accurately estimate the fatigue life of the frame when testing prototype products
[0004] In addition, the frame of the car is a load-bearing structure, which is a key position to bear various loads and excitations. The traditional frame fatigue life prediction method is highly dependent on the prototype car, and cannot fully consider life issues in the design stage.

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
  • CAE-based simulation detection method and simulation test system for fatigue life of automobile frame
  • CAE-based simulation detection method and simulation test system for fatigue life of automobile frame
  • CAE-based simulation detection method and simulation test system for fatigue life of automobile frame

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0051] Those skilled in the art can understand that, unless specifically stated otherwise, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the described features, integers, steps, operations, elements and / or components, but does not e...

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 relates to a CAE-based simulation detection method and simulation test system for fatigue life of an automobile frame, and the method comprises the steps: extracting a virtual frame loadspectrum in a virtual whole automobile driving process, carrying out the inertia release analysis of a virtual frame under a unit load, and obtaining a virtual frame material fatigue characteristic curve; inputting the virtual vehicle frame load spectrum, the inertia release analysis result under the unit load of the virtual vehicle frame and the virtual vehicle frame material fatigue characteristic curve into a virtual vehicle frame fatigue calculation model, and calculating the fatigue life of the virtual vehicle frame; judging whether the fatigue life of the virtual frame is within the fatigue life threshold range of the virtual frame or not, and if yes, storing actual parameters of the frame. The CAE is adopted for simulation analysis, the fatigue life condition of the frame is obtained, defects existing in the design can be quickly found, and technical support is provided for structural design and improvement.

Description

Technical field [0001] The invention relates to the technical field of automobile frame fatigue resistance simulation, in particular to a CAE-based simulation detection method and simulation test system for the fatigue life of an automobile frame. Background technique [0002] The frame structure of a car is an important part of the car, and its safety performance is very important. Among them, the fatigue life of the frame structure is one of the important indicators for evaluating the quality of the entire car. The fatigue life of the frame structure can be tested by tests. According to the specified requirements, the prototype product of the whole vehicle is driven on the road. The test situation of the frame structure is observed, and the mileage of the whole vehicle is calculated until the frame is broken. Or, the prototype product of the whole vehicle undergoes laboratory bench fatigue test [0003] However, the traditional fatigue life prediction methods of the frame genera...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 刘贵生许嘉慧吕学文吴庆国吕佳明刘志钢
Owner BEIDOU AEROSPACE AUTOMOBILE BEIJING CO LTD
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