DecompositionBased Assembly Synthesis for InProcess Dimensional Adjustability.pdfVIP

Decomposition-Based Assembly Synthesis for In-Process Byungwoo Lee Dimensional Adjustability Graduate Student Research Assistant, e-mail: byungwoo@engin.umich.edu This paper presents a method of assembly synthesis focused on the in-process adjustabil- Kazuhiro Saitou ity, where assembly synthesis is defined as the decomposition of the end product design Assistant Professor, prior to the detailed component design phase. Focusing on the effect of joint configura- e-mail: kazu@umich.edu tions on dimensional integrity of complex assemblies, the method recursively decomposes a product configuration and assigns joint configurations according to simple rules, in Department of Mechanical Engineering, order to achieve a designed dimensional adjustability and non-forced fit. The rules em- University of Michigan, ployed during the decomposition process are drawn from the previous works of assembly Ann Arbor, MI 48109-2125 design. An augmented AND/OR graph is utilized to represent a process of assembly synthesis with the corresponding assembly sequences, and the algorithm for generating the AND/OR graph is discussed. The method is applied to two dimensional skeletons of products without moving parts at very early stage of the design process. The relation of the assembly synthesis to