Method for designing modular complex product based on spectral features

A technology for complex products and design methods, applied in computer-aided design, calculation, computer parts, etc., can solve problems such as local optimal solutions and low algorithm operation efficiency, so as to avoid local optimal solutions, shorten the design cycle, improve efficiency effect

Inactive Publication Date: 2018-12-04
SHANGHAI UNIV
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  • Application Information

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Problems solved by technology

[0004] Aiming at the low operating efficiency of the algorithm in the traditional module division method and the problem of easy local optimal solutions, the present invention provides a design method for modular complex products based on spectral features, combined with graph theory, and uses spectral clustering algorithm to quickly realize modularization design

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  • Method for designing modular complex product based on spectral features
  • Method for designing modular complex product based on spectral features
  • Method for designing modular complex product based on spectral features

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Embodiment

[0056] Wheel loader is a typical complex mechanical product, and different disciplines are involved in the design process, such as electro-hydraulic control, mechanics, strength analysis, ergonomics, etc. At present, the production of wheel loaders is mainly oriented to order production. The average design cycle is about 10-15 days, and the design process is iterative, which seriously affects the delivery time. Therefore, there is an urgent need for a module division of wheel loaders to improve the comprehensive competitiveness of products.

[0057] Taking the working device of the ZL50 type wheel loader as an example, the design method of a modularized complex product based on spectral features of the present invention will be described in detail below: After analyzing the sales data and orders of the machine, the future product development and the individual needs of customers are positioned and predicted. On this basis, the working device is modularized.

[0058] A desig...

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Abstract

The invention discloses a method for designing a modular complex product based on spectral features. The method comprises a step of taking a structure, a function and a physical association as three factors that affect the correlation strength between components, quantifying the correlation strength from the three aspects, setting a weight ratio, calculating a comprehensive correlation strength between the components, and constructing a design structure matrix, a step of combining the graph theory and applying singular value decomposition to extract first k largest spectral features of the design structure matrix and corresponding feature vectors to form a streamlined spectral mapping space, a step of using a k-means algorithm to perform clustering operation in the space to obtain a program set of module division, and a step of selecting an optimal division scheme by using an extended weighting modularity EWQ function and combining and modeling modules in the optimal scheme in a software environment to obtain a three-dimensional model of a loader working device. According to the method, products with performance and specifications in response to client requirements can be quickly achieved according to the client requirements, and the modular design of a wheel loader working device is achieved.

Description

technical field [0001] The invention relates to the field of modular design of complex products, in particular to a design method for modular complex products based on spectral features. Background technique [0002] The design technology for mass customization is based on modularization. The modular design of products is the basis for analyzing the functions, structures, and physics of products with different functions within a certain range or products with the same function, different performance, and different specifications. Above, divide and design a series of modules. Modular complex products have the advantage that they can be redesigned, reconfigured, and reused more flexibly than traditional mass-manufactured products. Modules can realize the allocation and isolation of product functions, making it relatively easy to improve the design, thereby reducing the complexity of the product, making the product easier to manage, and quickly responding to the individual nee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06K9/62
CPCG06F2113/20G06F30/17G06F18/23213
Inventor 吴肖琳樊蓓蓓李聪
Owner SHANGHAI UNIV
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