A geometric algorithm for single selective disassembly using the wave propagation abstraction

Selective disassembly for virtual prototyping as applied to de-manufacturing

“…In our previous researches [2,40,41], we presented Wave Propagation (WP) sequencing algorithms for single component SD [2], multiple components SD [40] and a computational complexity reduction procedure [41] for sequence determination with minimal component removals.…”

“…E Accessibility of C G with respect to its adjacent component C H is de"ned as the set of directions with which C G can move relative to C H , and is denoted as ACH G [2]. For example, Fig.…”

“…4 illustrates the accessibility of some of the components. E Accessibility Graph, AG [2,41] is a directed graph representing A in which nodes correspond to the components in A and an arc, C G PC H , indicates that C G is adjacent to C H and stores an attribute ACH G . The type of joint (fasteners) between components is attributed to each component (node) in AG.…”

“…E Disassemblability, G , is a binary value that indicates if C G 3A is removable. G is computed as the intersection of all ACH G [2]. For example in Fig.…”

“…For example, product maintenance usually requires servicing only a subset of components in A, not the entire assembly, hence providing a need for SD [2].…”