Structural Synthesis of Stationary Cam-Modulated Seven-Bar Linkages for Press Driving Mechanisms

Wen Tung Chang; Yi Chen Li; Tzu Liang Tsai; Chun Ming Chang

doi:10.1007/978-3-031-45709-8_41

Structural Synthesis of Stationary Cam-Modulated Seven-Bar Linkages for Press Driving Mechanisms

Wen Tung Chang, Yi Chen Li, Tzu Liang Tsai, Chun Ming Chang

College of Earth Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

In the design stage of a press driving mechanism, the function generation problem must be dealt with for the dimensional synthesis. Planar cam-modulated linkages are possible solutions for exact function generation. The structural synthesis for stationary cam-modulated seven-bar linkages is presented in this paper. By removing a frame-adjacent non-input/output binary link in a planar one degree-of-freedom eight-bar linkage, and subsequently by combining the two incident simple joints on the two links adjacent to the removed link into a cam pair, thirty-one topological structures of stationary cam-modulated seven-bar linkages are synthesized in total. Also, based on the concepts of identifying the critical fixed pivot and critical force transmission path/sub-train of a topological structure, a classifying procedure for evaluating the degree of stability of all synthesized topological structures for force transmission in the toggle configuration is proposed and discussed. The presented results can be helpful in the conceptual design of press driving mechanisms.

Original language	English
Title of host publication	Advances in Mechanism and Machine Science - Proceedings of the 16th IFToMM World Congress 2023—Volume 3
Editors	Masafumi Okada
Publisher	Springer Science and Business Media B.V.
Pages	414-425
Number of pages	12
ISBN (Print)	9783031457081
DOIs	https://doi.org/10.1007/978-3-031-45709-8_41
State	Published - 2024
Event	16th International Federation of Theory of Machines and Mechanisms World Congress, IFToMM WC 2023 - Tokyo, Japan Duration: 5 Nov 2023 → 9 Nov 2023

Publication series

Name	Mechanisms and Machine Science
Volume	149
ISSN (Print)	2211-0984
ISSN (Electronic)	2211-0992

Conference

Conference	16th International Federation of Theory of Machines and Mechanisms World Congress, IFToMM WC 2023
Country/Territory	Japan
City	Tokyo
Period	5/11/23 → 9/11/23

Keywords

Cam-modulated linkage
Planar seven-bar linkage
Press driving mechanisms
Stationary cam
Structural synthesis
Topological structure

Access to Document

10.1007/978-3-031-45709-8_41

Cite this

Chang, W. T., Li, Y. C., Tsai, T. L., & Chang, C. M. (2024). Structural Synthesis of Stationary Cam-Modulated Seven-Bar Linkages for Press Driving Mechanisms. In M. Okada (Ed.), Advances in Mechanism and Machine Science - Proceedings of the 16th IFToMM World Congress 2023—Volume 3 (pp. 414-425). (Mechanisms and Machine Science; Vol. 149). Springer Science and Business Media B.V.. https://doi.org/10.1007/978-3-031-45709-8_41

Chang, Wen Tung ; Li, Yi Chen ; Tsai, Tzu Liang et al. / Structural Synthesis of Stationary Cam-Modulated Seven-Bar Linkages for Press Driving Mechanisms. Advances in Mechanism and Machine Science - Proceedings of the 16th IFToMM World Congress 2023—Volume 3. editor / Masafumi Okada. Springer Science and Business Media B.V., 2024. pp. 414-425 (Mechanisms and Machine Science).

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abstract = "In the design stage of a press driving mechanism, the function generation problem must be dealt with for the dimensional synthesis. Planar cam-modulated linkages are possible solutions for exact function generation. The structural synthesis for stationary cam-modulated seven-bar linkages is presented in this paper. By removing a frame-adjacent non-input/output binary link in a planar one degree-of-freedom eight-bar linkage, and subsequently by combining the two incident simple joints on the two links adjacent to the removed link into a cam pair, thirty-one topological structures of stationary cam-modulated seven-bar linkages are synthesized in total. Also, based on the concepts of identifying the critical fixed pivot and critical force transmission path/sub-train of a topological structure, a classifying procedure for evaluating the degree of stability of all synthesized topological structures for force transmission in the toggle configuration is proposed and discussed. The presented results can be helpful in the conceptual design of press driving mechanisms.",

keywords = "Cam-modulated linkage, Planar seven-bar linkage, Press driving mechanisms, Stationary cam, Structural synthesis, Topological structure",

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Chang, WT, Li, YC, Tsai, TL & Chang, CM 2024, Structural Synthesis of Stationary Cam-Modulated Seven-Bar Linkages for Press Driving Mechanisms. in M Okada (ed.), Advances in Mechanism and Machine Science - Proceedings of the 16th IFToMM World Congress 2023—Volume 3. Mechanisms and Machine Science, vol. 149, Springer Science and Business Media B.V., pp. 414-425, 16th International Federation of Theory of Machines and Mechanisms World Congress, IFToMM WC 2023, Tokyo, Japan, 5/11/23. https://doi.org/10.1007/978-3-031-45709-8_41

Structural Synthesis of Stationary Cam-Modulated Seven-Bar Linkages for Press Driving Mechanisms. / Chang, Wen Tung; Li, Yi Chen; Tsai, Tzu Liang et al.
Advances in Mechanism and Machine Science - Proceedings of the 16th IFToMM World Congress 2023—Volume 3. ed. / Masafumi Okada. Springer Science and Business Media B.V., 2024. p. 414-425 (Mechanisms and Machine Science; Vol. 149).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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PY - 2024

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N2 - In the design stage of a press driving mechanism, the function generation problem must be dealt with for the dimensional synthesis. Planar cam-modulated linkages are possible solutions for exact function generation. The structural synthesis for stationary cam-modulated seven-bar linkages is presented in this paper. By removing a frame-adjacent non-input/output binary link in a planar one degree-of-freedom eight-bar linkage, and subsequently by combining the two incident simple joints on the two links adjacent to the removed link into a cam pair, thirty-one topological structures of stationary cam-modulated seven-bar linkages are synthesized in total. Also, based on the concepts of identifying the critical fixed pivot and critical force transmission path/sub-train of a topological structure, a classifying procedure for evaluating the degree of stability of all synthesized topological structures for force transmission in the toggle configuration is proposed and discussed. The presented results can be helpful in the conceptual design of press driving mechanisms.

AB - In the design stage of a press driving mechanism, the function generation problem must be dealt with for the dimensional synthesis. Planar cam-modulated linkages are possible solutions for exact function generation. The structural synthesis for stationary cam-modulated seven-bar linkages is presented in this paper. By removing a frame-adjacent non-input/output binary link in a planar one degree-of-freedom eight-bar linkage, and subsequently by combining the two incident simple joints on the two links adjacent to the removed link into a cam pair, thirty-one topological structures of stationary cam-modulated seven-bar linkages are synthesized in total. Also, based on the concepts of identifying the critical fixed pivot and critical force transmission path/sub-train of a topological structure, a classifying procedure for evaluating the degree of stability of all synthesized topological structures for force transmission in the toggle configuration is proposed and discussed. The presented results can be helpful in the conceptual design of press driving mechanisms.

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Chang WT, Li YC, Tsai TL, Chang CM. Structural Synthesis of Stationary Cam-Modulated Seven-Bar Linkages for Press Driving Mechanisms. In Okada M, editor, Advances in Mechanism and Machine Science - Proceedings of the 16th IFToMM World Congress 2023—Volume 3. Springer Science and Business Media B.V. 2024. p. 414-425. (Mechanisms and Machine Science). doi: 10.1007/978-3-031-45709-8_41

Structural Synthesis of Stationary Cam-Modulated Seven-Bar Linkages for Press Driving Mechanisms

Abstract

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Keywords

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