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Content-Based Assembly Search: A Step towards Assembly Reuse



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This document contains the draft version of the following paper A S Deshmukh A G Banerjee S K Gupta and R Sriram Content based assembly search A step towards assembly reuse Computer Aided Design 40 2 244 261 2008 Readers are encouraged to get the official version from the journal s web site or by contacting Dr S K Gupta skgupta umd edu Content Based Assembly Search A Step towards Assembly Reuse Abhijit S Deshmukh Ashis Gopal Banerjee Satyandra K Gupta 1 Department of Mechanical Engineering and The Institute for Systems Research University of Maryland College Park MD 20742 U S A Ram D Sriram Manufacturing Systems Integration Division National Institute of Standards and Technology Gaithersburg MD 20899 U S A ABSTRACT The increased use of CAD systems by product development organizations has resulted in the creation of large databases of assemblies This explosion of assembly data is likely to continue in the future In many situations text based search alone may not be sufficient to search for assemblies and it may be desirable to search for assemblies based on the content of the assembly models The ability to perform content based searches on these databases is expected to help the designers in the following two ways First it can facilitate reuse of existing assembly designs thereby reducing the design time Second a lot of useful design for manufacturing and assembly knowledge is implicitly embedded in existing assemblies Therefore a capability to locate existing assemblies and examine them can be used as a learning tool by designers to learn from the existing assembly designs This paper describes a system for performing content based searches on assembly databases We identify templates for comprehensive search definitions and describe algorithms to perform content based searches for mechanical assemblies We also illustrate capabilities of our system through several examples Keywords Content based assembly search graph compatibility assembly mating conditions and



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