TY - GEN
T1 - Representation of tolerance information in solid models
AU - Bernstein, N. S.
AU - Preiss, K.
N1 - Publisher Copyright:
© 1989 American Society of Mechanical Engineers (ASME). All rights reserved.
PY - 1989/1/1
Y1 - 1989/1/1
N2 - A set of tolerance constraints in solid models is represented as a constraint network over the degrees of freedom of the shape elements of the lxxly. This approach is referred to as the constraint propagation approach to the representation of tolerance information. An evaluation of the resultant constraint network provides both an analysis of a specific dimension and tolerance scheme and figures of merit regarding the combinatorial and geometric/numeric computational complexity of a set of engineering spatial constraints. This paper discusses the representation needed to achieve that evaluation. The inherent computational complexity of spatial designs can then be explicitly evaluated and controlled. For many practical cases, semantic integrity and other evaluations may be conducted in low polynomial time, in the number of tolerance constraints. The representation is applicable also to assemblies.
AB - A set of tolerance constraints in solid models is represented as a constraint network over the degrees of freedom of the shape elements of the lxxly. This approach is referred to as the constraint propagation approach to the representation of tolerance information. An evaluation of the resultant constraint network provides both an analysis of a specific dimension and tolerance scheme and figures of merit regarding the combinatorial and geometric/numeric computational complexity of a set of engineering spatial constraints. This paper discusses the representation needed to achieve that evaluation. The inherent computational complexity of spatial designs can then be explicitly evaluated and controlled. For many practical cases, semantic integrity and other evaluations may be conducted in low polynomial time, in the number of tolerance constraints. The representation is applicable also to assemblies.
UR - https://www.scopus.com/pages/publications/85105368709
U2 - 10.1115/DETC1989-0018
DO - 10.1115/DETC1989-0018
M3 - Conference contribution
AN - SCOPUS:85105368709
T3 - Proceedings of the ASME Design Engineering Technical Conference
SP - 37
EP - 48
BT - Computer-Aided and Computational Design
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 1989 Design Technical Conferences, DETC 1989
Y2 - 17 September 1989 through 21 September 1989
ER -