Fast mobility analysis for generative design applications through a real vector space representation of mobilities
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Date
2024-11-15
Publication Type
Journal Article
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Abstract
During the early stages of design, mechanisms are commonly modeled as perfect joints assembled with infinitely rigid bodies. This representation enables the prediction of the system's mobilities through a mobility analysis. However, traditional mobility analysis tools can be computationally expensive or lack critical information, such as the type or direction of mobilities. It hinders the generation of topology and configuration through generative design schemes. In this paper, we propose an alternative approach to mobility analysis based on a real vector space representation of mobilities. Our method provides relevant information for early design steps while being computationally effective through a novel formulation of series and parallel assembly topological operations. A benchmark on four selected use cases highlights an acceleration of 3 to 4 orders of magnitude compared to traditional approaches. Additionally, design rules on the joints’ positions can be automatically generated with our approach. It enables the automation of the complete design process, including topology and configuration. As such, we provide guidelines to develop a generative design scheme dedicated to the synthesis of guiding mechanisms.
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published
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Journal / series
Volume
203
Pages / Article No.
105790
Publisher
Elsevier
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Edition / version
Methods
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Subject
Mobility analysis; Guiding mechanisms; Precision mechanisms; Optimization; Generative design
Organisational unit
02665 - Inst. f. Design, Mat. und Fabrikation / Inst. of Design, Materials a Fabrication
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