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Title: Modeling, analysis, and verification of optimal fixturing design
Authors: Tan, E.Y.T.
Kumar, A.S. 
Fuh, J.Y.H. 
Nee, A.Y.C. 
Keywords: Finite-element modeling (FEM)
Fixture analysis
Fixture design
Optimal clamping
Issue Date: Oct-2004
Citation: Tan, E.Y.T., Kumar, A.S., Fuh, J.Y.H., Nee, A.Y.C. (2004-10). Modeling, analysis, and verification of optimal fixturing design. IEEE Transactions on Automation Science and Engineering 1 (2) : 121-132. ScholarBank@NUS Repository.
Abstract: Fixture design is an important manufacturing activity which affects the quality of parts produced. In order to develop a viable computer-aided fixturing tool, the fixture-workpiece system has to be accurately modeled and analyzed. This paper describes the modeling, analysis, and verification of optimal fixturing configurations by the methods of force closure, optimization, and finite-element modeling (FEM). Force closure has been employed to find optimal clamping positions and sequencing, while optimization is used for determining the minimum clamping forces required to balance the cutting forces. The developed FEM is able to determine in detail what are the reaction forces, workpiece displacement, deformation in the workpiece and fixtures. In order to produce a more accurate model for predicting the behavior of the fixture-workpiece system, the developed FEM includes fixture stiffness, which past models have assumed as rigid bodies. The reaction forces on the locators are experimentally verified. A sensor-embedded experimental fixturing setup was developed to verify the modeling and the data was used to compare with the FEM.
Source Title: IEEE Transactions on Automation Science and Engineering
ISSN: 15455955
DOI: 10.1109/TASE.2004.835601
Appears in Collections:Staff Publications

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