DFA-oriented assembly relation modelling

Mo, Jianzhong; Cai, Jing; Zhang, Zongmao; Zhiqiang, Liang

doi:10.1080/095119299130290

Cited by 10 publications

(5 citation statements)

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“…Furthermore, T, R∈{0,1} in which 0 means the movement on the corresponding direction is forbidden and 1 means the movement on the corresponding direction is allowed. Intersection of allowed movement in the range of degree of freedom can be calculated by matrix (1). After the Boolean intersection operations of every element in column 1 with column 2 and the value range of every element, the surplus degree of freedom and movement range of multiple constraints corresponding to the object can be gained.…”

Section: Expression Of Assembly Constraintsmentioning

confidence: 99%

“…In the process of traditional manufacturing, assembly workload accounts for average 45% of production workload, and the assembly cost accounts for 30% to 50% of production cost [1]. With the accelerating development of information technology, such as CAD, CAPP and CAM, virtual assembly(VA) technology, which can provide intuitive, economy and reasonable planning ways of assembly process and enhance the manufacturability and assembly ability of products effectively, emerged as the times require and became an important part of virtual manufacturing system Virtual assembly can be divided into assembly sequence planning and assembly path planning, and the former has been deep studied by our research group in the paper [2].…”

Section: Introductionmentioning

confidence: 99%

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An Efficient Method of Assembly Path Planning in Virtual Manufacturing System

Gao

Shang

Zhang

2012

AMR

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With the development of information technology, such as CAD, CAPP and CAM, assembly process, which accounts for large amount of time and cost of manufacturing, to be included in virtual manufacturing system is urgently required. According to the principle that the sequence and path in assembly and disassembly process are reversible, the assembly path can be obtained on the basis of assembly constraints analysis and information model building through optimized and reversed. The method of assembly path planning presented in this paper can effectively reduce computational complexity and improve planning efficiency, whose correctness and efficiency is proven by an application example.

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Section: Expression Of Assembly Constraintsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Efficient Method of Assembly Path Planning in Virtual Manufacturing System

Gao

Shang

Zhang

2012

AMR

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“…Parts are consist of assembly features, so assembly features correspond to corresponding parts and 3 M records the mapping relationship between assembly feature layer and part layer. Assembly constraint relationship between parts is essentially divided into external constraint relations between assembly features of different parts and 3 E records the constraint relationship between assembly features. (4) Geometric topology layer can be expressed as: ( , , , )…”

Section: Advanced Manufacturing Technology Adme 2011mentioning

confidence: 99%

Research on Technology of Process-Oriented Virtual Assembly Modeling for Product Information

Liu

Wan

Wang

2011

AMR

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In order to solve the problems such as completeness and following performance of product model information in process of virtual assembly, a process-oriented virtual assembly model for product information is proposed in this paper. It applies attribute frame to constitute the mapping of geometry topology information and non-geometry information, and basis for information granularity, the structure of multi-layer representation for assembly model information is constructed by framework of tree structure. It can satisfy the requirements of representation completeness, dynamic following and real-time requirements in virtual assembly. A modeling system was established and its feasibility was verified by research result.

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“…Virtual Assembly/disassembly deals with following aspect of a product design: For the convenience of addressing the above three analysis activities in a Collaborative Virtual Assembly/disassembly System, Assembly Relation Model (ARM) [22] is defined. In the following paragraph, the definition of ARM is briefly described.…”

Section: Collaborative Virtual Assembly / Disassemblymentioning

confidence: 99%

On the Creation of a Unified Modeling Language Based Collaborative Virtual Assembly/Disassembly System

Chu

Prabhu

et al. 2003

Volume 3a: 8th Design for Manufacturing Conference

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Design For Assembly/disassembly (DFA) allows systematic evaluations and analysis of product assembly and disassembly during the product design stage with the goal of reducing assembly costs, improving quality and shortening time to market. These evaluations include assemblability, disassemblability, part accessibility, and part layout [1]. With the growing availability and widespread use of high bandwidth network and Virtual Reality (VR) technologies, the issues involved with product assembly, disassembly may be addressed and resolved effectively in a collaborative virtual environment over the Internet. In this paper, an analysis on the framework and definition of a collaborative virtual assembly and disassembly system, called Motive3D [2, 3], is introduced and examined using Unified Modeling Language (UML) [4]. UML is an Object Management Group’s (OMG) standard for object-oriented analysis and software design method, which allows specifying, constructing, visualizing, and documenting a distributed software-intensive system. Carrying out systematic analysis on the Motive3D system using UML, we believe that it expedites system development and will be possible to expedite the product design cycle and enable the assembly and disassembly process over Internet, and thus reduce the assembly and disassembly process bottlenecks.

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DFA-oriented assembly relation modelling

Cited by 10 publications

References 0 publications

An Efficient Method of Assembly Path Planning in Virtual Manufacturing System

An Efficient Method of Assembly Path Planning in Virtual Manufacturing System

Research on Technology of Process-Oriented Virtual Assembly Modeling for Product Information

On the Creation of a Unified Modeling Language Based Collaborative Virtual Assembly/Disassembly System

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