Methodology of Assembly Automation: A New Approach

Bourjault, A.

doi:10.1007/978-3-642-73890-6_6

Cited by 29 publications

(6 citation statements)

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“…In the traditional method of ASP, Bourjault 9 was the first to study ASP. He proposed the assembly precedence relations (APR) question and answer method, using the joint diagram to express the geometric model and assist to optimise the assembly sequence .…”

Section: Literature Reviewmentioning

confidence: 99%

An assembling algorithm for fixture in an assembly process planning system

Liu

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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Three-dimensional assembly process planning is a precondition for achieving full product lifecycle management based on three-dimensional modelling. Information expression and management operations of fixture models are key to three-dimensional assembly process planning systems. To reasonably and efficiently achieve the goal of planning assembly processes with a fixture model, the application of a fixture information model to a three-dimensional assembly process planning system is investigated. First, to manage tooling information, a fixture information model is defined that consists of management information, display information, geometric information, assembly constraints and degrees of freedom. Then, based on the analysis of the degrees of freedom of components and the assembly constraint relationship, a method of solving assembly constraints based on degrees of freedom reasoning is proposed. Finally, by using the method of solving assembly positioning based on geometric constraints, the pose transformation and assembly positioning of parts are achieved. Through the development of a tooling function module, the three-dimensional assembly process planning system is improved. The feasibility of the above method is verified using part of a spacecraft as an example.

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Section: Literature Reviewmentioning

confidence: 99%

An assembling algorithm for fixture in an assembly process planning system

Liu

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…The use of disassembly trees was proposed by Bourjault. 150 The tree starts from the root node which indicates the original EoL product. The branch nodes represent subassemblies or parts of the product.…”

Section: Disassembly Modellingmentioning

confidence: 99%

Disassembly sequence planning: Recent developments and future trends

Zhou

Liu

Pham

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part B:

102

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Remanufacturing has gained increasing attention due to its economic, environmental and societal benefits as well as its contribution to the sustainability of natural resources. Disassembly is the first and usually the most difficult process in remanufacturing a product. Disassembly sequence planning, which aims to find the optimal disassembly sequence, is required to improve efficiency and reduce cost. There have been many investigations in this field and several disassembly sequence planning methods have been developed. This article reviews the main existing disassembly sequence planning methods from the perspectives of disassembly mode, disassembly modelling and planning method. The characteristics of different methods are analysed and summarised from those perspectives. Future trends in disassembly sequence planning are also discussed to reveal gaps in existing research.

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“…Early assembly reasoning systems were strongly based on user interaction. They queried the user for information (e.g., geometric reasoning, precedence relations) and generated assembly sequences on the basis of the given answers [11], [12]). One basic idea in most of the work on assembly planning is the assembly by disassembly strategy: The assembly sequences are generated by starting with the completed mechanical product and decomposing it step by step by disassembly operations.…”

Section: Related Workmentioning

confidence: 99%

Automatic decomposition of planned assembly sequences into skill primitives

Mosemann

Wahl

2001

IEEE Trans. Robot. Automat.

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This paper presents a new method to decompose complex sequences of assembly operations into skill primitives. This can be realized by analyzing hyperarcs of the underlying AND/ORgraphs representing automatically generated assembly plans. Features like local depart spaces, symbolic spatial relations, and the necessary tools classify the type of assembly operation (peg in hole, placements, alignments, etc.). Skill primitives are robot movements or commands for grippers and tools. The unified modeling language (UML) is used to model the robot tasks and skill primitives. A robot control system uses the skill primitives as input to select the desired control scheme (position, force, or hybrid). In addition to this, we use an algorithm to identify assembly process states considering static friction under uniform gravity to execute skill primitives. This enables a robot to select and modify its motion strategies adequately according to the state of the assembly operation.

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Methodology of Assembly Automation: A New Approach

Cited by 29 publications

References 0 publications

An assembling algorithm for fixture in an assembly process planning system

An assembling algorithm for fixture in an assembly process planning system

Disassembly sequence planning: Recent developments and future trends

Automatic decomposition of planned assembly sequences into skill primitives

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