Indexed by:会议论文

Date of Publication:2007-09-04

Included Journals:EI、CPCI-S

Volume:8 PART A

Page Number:547-560

Abstract:A new methodology for configuration design of metamorphic mechanisms is developed based on genetic evolutionary operation with biological building blocks. The goal is to conceive the appropriate source-metamorphic-mechanism configuration given the multiple phases of kinematic functions in motion specifications. The key enabler of configuration synthesis is the method of capturing the metamorphic configuration characteristics and the genetic evolutionary criteria and of developing genetic evolution in modeling and design. With the unique characteristics of achieving multiple working-phase functions, the metamorphic mechanisms possess two,features: one, the ametabolic feature referring to the specified sub-working phases that can be accomplished by traditional mechanisms; two, the metamorphic feature occurring transition between different working phases resulting change of topology of the mechanism. Based on this transition between phases, the concept of mechanism evolution is for the first time introduced in this paper based on biological building blocks in the form of metamorphic cells and associated inner elements as the metamorphic gene. This leads to development of cell evolution and genetic aggregation forms with mechanism decomposition and evolution formulation based on mapping from the source-metamorphic-mechanism to multi-phases working configurations. Examples are given to demonstrate the concept and principles.