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Abstract: Aiming at difficult sorting and retrieving complicated
structure parts in part lib, a method for part design by using
conceptual part structure qualitative models is presented. Bond surfaces
and function surfaces are abstracted as assembly meta symbols and
function meta symbols respectively, link meta symbols make the assembly
meta symbols and the function meta symbols in the part connect and
express the configuration of part structure. By abstracting of relative
position, orientation and topology relation between part function
surfaces as a qualitative symbol set, the conceptual part structure
qualitative models are presented. The calculation methods of conceptual
part structure similar degree are discussed. On the basis of referring
to the algorithms of retrieving compound in chemical database, the
similar part retrieval mechanisms of structure graph matching and
structure graph similarity are presented. The method is validated by
taking reducer boxes as example.
Key words: Design reuse Similar part retrieval Part design lib
CLC No: TP391
国家自然科学基金(50075080)和国家863计划(2003AA411320)资助项目. Received 20040330,
received in revised form 20040916
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