Design method of multi-component thin-wall beam structure considering manufacturing cost

A manufacturing cost and structural design technology, applied in the field of multi-component thin-walled beam structure design, can solve the problems of poor manufacturability of thin-walled beams, poor economical and process feasibility, complex shape of single-component thin-walled beams, etc., and achieve the goal of improving economic benefits Effect

Active Publication Date: 2022-07-15
JILIN UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to solve the problem that the existing single-component thin-walled beams designed by the topology optimization method are relatively complicated in structure and shape, which makes their economical products and process feasibility poor, resulting in poor manufacturability of the thin-walled beams. A design method for multi-component thin-walled beam structures considering manufacturing cost

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
  • Design method of multi-component thin-wall beam structure considering manufacturing cost
  • Design method of multi-component thin-wall beam structure considering manufacturing cost
  • Design method of multi-component thin-wall beam structure considering manufacturing cost

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0175] Example: An example is given below to verify the effectiveness of this method

[0176] Based on the design method described in the specification, the present invention writes a program code for the optimal design of a multi-component thin-wall beam structure in MATLAB. We use the present invention to solve the thin-walled beam under the condition of the cantilever beam loaded at the lower end, and finally obtain the thin-walled beam structure in the form of multiple components.

[0177] First, establish a thin-walled beam structure with a geometric size of 10×10×10, a hollow square hole with a diameter of 6×6, an elastic modulus unit of 1, a Poisson’s ratio of 0.3, the preset number of components is set to K=3, and the volume constraint limit is set V * Set to 0.5, part material cost limit Volume (k) set to 10 9 , the initial values ​​of the element density ρ and the component specific gravity fraction m are respectively set as the volume constraint limit V * and 1 / ...

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 thin-walled beam design method, aiming at the problems of complex shape, poor economical and technological feasibility, and poor manufacturability of the existing single-component thin-walled beam structure designed by using the topology optimization method, and a multi-component thin-walled beam structure considering the manufacturing cost. Design method; including: 1. Establishing the initial design space finite element model of the multi-component thin-walled beam; 2. Establishing the multi-component thin-walled beam multiphase penalty material interpolation model; 3. Determining the multi-component thin-walled beam structure optimization goal; 4. Establishing the multi-component thin-walled beam Material cost constraints of thin-walled beam parts; 5. Establish a multi-component thin-walled beam topology optimization model considering manufacturing cost constraints; the present invention takes into account manufacturing constraints in the topology optimization process and realizes multi-component structure decomposition in the topology optimization process, improving topology optimization. The economic benefits brought by and the feasibility of the optimization scheme.

Description

technical field [0001] The present invention relates to a method for structural design of thin-walled beams, more specifically, the present invention relates to a method for structural design of thin-walled beams in multi-component form considering manufacturing cost. Background technique [0002] In recent years, with the increasingly severe form of energy crisis and environmental protection, the requirements for the lightweight of automobiles have been further improved. A well-designed body structure can maximize the performance of automobiles while ensuring lightweight. Thin-walled beams are the most widely used structures in automobile bodies, and the ability to design a reasonable thin-walled beam structure directly affects the performance and lightweight of the vehicle. [0003] Structural optimization design is a method of optimizing certain structural parameters to obtain the best design solution under one or more constraints. This method can find the best balance p...

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 Patents(China)
IPC IPC(8): G06F30/15G06F30/23
Inventor 张君媛王世航周浩舒畅王坚宁立男刘丰
Owner JILIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap