K. Fujita et al., A configuration synthesis method of mechanism systems using motion marker sequence and planar cells, JSME C, 44(3), 2001, pp. 782-792
Citations number
15
Categorie Soggetti
Mechanical Engineering
Journal title
JSME INTERNATIONAL JOURNAL SERIES C-MECHANICAL SYSTEMS MACHINE ELEMENTS AND MANUFACTURING
We discuss the design synthesis problem of mechanical systems with an examp
le of configuration design of chain-type mechanisms. Mechanisms are used as
system elements in various products, and each mechanism system is composed
of mechanism pairs. In the design process, the functional structure of mec
hanisms and their spatial configuration are determined. The former means th
e sequential chains of pairs, and the latter means the arrangement and geom
etry of mechanism elements. We propose a framework for simultaneously consi
dering both issues for designing a certain level of complicated mechanism s
ystems. The concepts of market sequences and cell-based planar representati
on are introduced to manipulate a design. Each marker corresponds to an abs
tracted representation of a particular mechanism element. Each cell corresp
onds to a region for such a marker. The computational design process is org
anized by generating marker sequences, assigning markers to cells, refining
both of them, and embodying the configuration and arrangement of mechanism
s. Finally, a prototype CAD system implemented under the proposed concepts
is applied to several design examples. In the conclusion, we show the neces
sity of fictitious media for representing and computerizing the conceptual
and configurational phases of a design process.