This paper presents a case study in computer-assisted tolerancing with the configuration space method. We analyze part of a gear selector mechanism in an automotive automatic transmission. The model contains three complex parts with 99 functional parameters. The analysis, which takes less than a minute on a workstation, indicates that the critical kinematic variation occurs in third gear and identifies the parameters that cause the variation. The analysis, program handles general planar systems of curved parts with contact changes, including open and closed kinernatic chains. It computes the worst-case variation in the system kinematic function and detects potential failure modes due to unexpected qualitative variations in function, such as jamming. It constructs configuration space models of the kinematic variations of the pairs in the system then derives the system variation by composing the pair models.
|Original language||American English|
|Title of host publication||25th Design Automation Conference|
|Publisher||American Society of Mechanical Engineers (ASME)|
|Number of pages||7|
|State||Published - 1999|
|Event||ASME 1999 Design Engineering Technical Conferences, DETC 1999 - Las Vegas, United States|
Duration: 12 Sep 1999 → 16 Sep 1999
|Name||Proceedings of the ASME Design Engineering Technical Conference|
|Conference||ASME 1999 Design Engineering Technical Conferences, DETC 1999|
|Period||12/09/99 → 16/09/99|
Bibliographical noteFunding Information:
Sacks is supported by NSF grants CCR-9617600 and CCR- 9505745 and by the Purdue Center for Computational Image Analysis and Scientific Visualization. Joskowicz is supported by a grant from the Authority for Research and Development, The Hebrew University of Jerusalem, Israel. Sacks and Joskow icz are supported by a Ford University Research Grant, the Ford ADAPT200 project, and by grant 98/536 from the Israeli Academy of Science.
Copyright © 1999 by ASME.