Solving Topological and Geometrical Constraints in Bridge Feature Model |
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Authors: | PENG Weibing SONG Liangliang PAN Guoshuai |
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Institution: | College of Architecture and Civil Engineering, Zhejiang University of Technology;Zhejiang Taizhou Electric Power Bureau |
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Abstract: | The capacity that computer can solve more complex design problem was gradually increased. Bridge designs need a breakthrough in the current development limitations, and then become more intelligent and integrated. This paper proposes a new parametric and feature-based computer aided design (CAD) models which can represent families of bridge objects, includes knowledge representation, three-dimensional geometric topology relationships. The realization of a family member is found by solving first the geometric constraints, and then the topological constraints. From the geometric solution, constraint equations are constructed. Topology solution is developed by feature dependencies graph between bridge objects. Finally, feature parameters are proposed to drive bridge design with feature parameters. Results from our implementation show that the method can help to facilitate bridge design. |
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Keywords: | bridge intelligent design feature mapping feature dependence graph constraint equations |
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