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AN AUTOMATED FUNCTION DECOMPOSITION METHOD BASED ON A FORMAL REPRESENTATION OF SOLID MATERIAL‘S SHAPE
Yuan, Lin; Zhang, Zhinan; Liu, Yusheng
Type:
Year:
2015
Editor:
Christian Weber, Stephan Husung, Gaetano Cascini, Marco Cantamessa, Dorian Marjanovic, Frederico Rotini
Author:
Series:
ICED
Institution:
1: Zhejiang University, People's Republic of China; 2: Shanghai Jiao Tong University, People's Republic of China
Section:
Design Methods and Tools - part 1
Page(s):
243-252
ISBN:
978-1-904670-68-1
ISSN:
2220-4334
Abstract:
The objective of this work is to develop a formal representation of the material flow’s shape in the conceptual design stage, specifically to meet the needs of function modelling in order to support the function decomposition of working machines. A hierarchical shape graph (HSG) is used to abstract the structure of shape elements for a material flow’s shape. Based on the semantic information contained in the input/output material flow’s HSG model, the global shape change of a material flow is decomposed to several local relation changes between shape elements. Moreover, a planning algorithm is proposed to support finding a feasible sub-function execution sequence for achieving the shape change function. Finally, a knowledge representation scheme is developed for action, which is the principle solution to bridge the result of system level function decomposition and the design of mechanism motions. The representation and automated decomposition process have been implemented based on IBM Rhapsody platform.
Keywords:
