Analytical and Numerical Investigation of Reaction Forces in Fixturing of Rigid Workpiece with Polyhedral Geometry

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Parvaz H.

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Journal: JOURNAL OF SOLID AND FLUID MECHANICS Year:2020 | Volume:10 | Issue:1 Page(s): 17-29

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Information Journal Paper

Title

Analytical and Numerical Investigation of Reaction Forces in Fixturing of Rigid Workpiece with Polyhedral Geometry

Author(s)

Parvaz H. | Issue Writer Certificate

Keywords

Coefficient of FrictionQ1

Fixture DesignQ2

LocatingQ1

Minimum Norm PrincipleQ1

Reaction ForceQ1

Abstract

Reaction Forces at the Locating points of the machining fixture are considered as one of the important input parameters in different stages of Fixture Design procedure including fixture planning, unit design, and verification. In the present study, an agile tool is proposed for calculation of the Reaction Forces based on the Minimum Norm Principle. For validation of the results, finite element analysis is performed in Abaqus ® software on a rigid workpiece with polyhedral geometry. The Reaction Forces are calculated from the numerical analysis and compared to the theoretical predictions. In comparison to the numerical results, the worst-case error of 3. 9% is obtained for the theoretical predictions of the normal-to-surface components of Reaction Forces. The theoretical predictions of the tangential components of Reaction Forces are not accurate. However, their effects are negligible by considering that the intensity of these forces is low in comparison to the normal components. It was concluded that the theoretical predictions of the normal components of Reaction Forces agreed well to the numerical data and results that were published in the previous studies. The agreement between the theoretical predictions, results of the previous studies, and the finite element analysis confirmed the accuracy of the suggested model.

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APA: Copy

Parvaz, H.. (2020). Analytical and Numerical Investigation of Reaction Forces in Fixturing of Rigid Workpiece with Polyhedral Geometry. JOURNAL OF SOLID AND FLUID MECHANICS, 10(1 ), 17-29. SID. https://sid.ir/paper/369411/en

Vancouver: Copy

Parvaz H.. Analytical and Numerical Investigation of Reaction Forces in Fixturing of Rigid Workpiece with Polyhedral Geometry. JOURNAL OF SOLID AND FLUID MECHANICS[Internet]. 2020;10(1 ):17-29. Available from: https://sid.ir/paper/369411/en

IEEE: Copy

H. Parvaz, “Analytical and Numerical Investigation of Reaction Forces in Fixturing of Rigid Workpiece with Polyhedral Geometry,” JOURNAL OF SOLID AND FLUID MECHANICS, vol. 10, no. 1 , pp. 17–29, 2020, [Online]. Available: https://sid.ir/paper/369411/en

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