Automatic Design Theory and Realization of Kinematic Schemes for Mechanism System |
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Authors: | Ye Zhi-gang Zou Hui-jun Guo Wei-zhong Hu Song Tian Yong-li and Xu Yong |
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Affiliation: | (1) School of Mechanical Engineering, Shanghai University, Shanghai, 200030, China;(2) Central China Security Co. Ltd., Shanghai, 200030, China |
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Abstract: | Based on an analysis of mechanism combination methods of a current mechanism system kinematic scheme, input/output kinematic
behavior and their constraint relations were proposed to represent the kinematic behavior knowledge of a mechanism system.
Furthermore, a tree structure of a kinematic behavior decomposition process for a mechanism system was provided. Considering
multiple outputs for a mechanism system, the matching algorithm and the attributes propagation method of kinematic behavior
were used to generate a mechanism combination scheme. Its intermediate design solution and the constraint relations between
input and output are generated to fill the common blackboard. Moreover, using information in the blackboard as input motion,
the behavior attributes of other process actions are transmitted to attribute items of the blackboard, which finally enables
a computer-aided automatic design process of a mechanism system kinematic scheme. To avoid the problem of schemes combination
explosion caused by unbounded depth in the search process, bounded depth-first search was used to control the number of expanded
hierarchies for a design tree. Finally, an example was given to show its feasibility and solution efficiency.
Translated from the Journal of Shanghai Jiaotong University, 2004, 38(6) (in Chinese)
This work was supported by the National Natural Science Foundation of China (grant 59875058) |
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Keywords: | conceptual design mechanism combination blackboard process action design automation bounded depth-first search |
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