Efficient prediction of workpiece-fixture contact forces using the rigid body model

Michael Yu Wang, Diana M. Pelinescu

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

Abstract

Prediction of workpiece-fixture contact forces is important in fixture design since they define the fixture stability during clamping and strongly influence workpiece accuracy during manufacturing. This paper presents a solution method for predicting the normal and frictional contact forces between workpiece-fixture contacts. The fixture and workpiece are considered to be rigid bodies, and the model solution is solved as a constrained quadratic optimization by applying the minimum norm principle. The model reveals some intricate properties of the passive contact forces, including the potential of a locator release and the history dependency during a sequence of clamping and/or external force loading. Model predictions are shown to be in good agreement with known results of an elastic-contact model prediction and experimental measurements. This presented method is conceptually simple and computationally efficient. It is particularly useful in the early stages of fixture design and process planning.

Original languageEnglish
Title of host publicationProceedings of the 5th International Conference on Frontiers of Design and Manufacturing (ICFDM'2002)
EditorsD. Guo, D. Wang, Z. Jia, J. Wang, D. Guo, D. Wang, Z. Jia, J. Wang
Pages403-408
Number of pages6
Publication statusPublished - 2002
Externally publishedYes
EventInternational Conference on Frontiers of Manufacturing and Design Science (ICFMD) 2002 - Dalian, China
Duration: 10 Jul 200212 Jul 2002
Conference number: 5th
https://www.scimagojr.com/journalsearch.php?q=93182&tip=sid&clean=0 (Proceedings)

Publication series

NameProceedings of the 5th International Conference on Frontiers of Design and Manufacturing (ICFDM'2002)

Conference

ConferenceInternational Conference on Frontiers of Manufacturing and Design Science (ICFMD) 2002
Abbreviated titleICFDM'2002
Country/TerritoryChina
CityDalian
Period10/07/0212/07/02
Internet address

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