Improvement on Planar Mechanism Composition Principle

Ji-Chao Li; Ji-Qiang Li

doi:10.34257/GJREAVOL21IS1PG1

Improvement on Planar Mechanism Composition Principle

Ji-Chao Li *

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Ji-Qiang Li

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Improvement on Planar Mechanism Composition Principle

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DOI
10.34257/GJREAVOL21IS1PG1

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Abstract

By investigation of movement of the Assur groups in normal connecting condition, and by inspection of the kinematic pair concept, the conclusions were found that “The freedom of Assur group is zero” in the Planar Mechanism Composition Principle conflicts with the fact that Assur group can move, and the external kinematic pairs of Assur group are inconsistent with the kinematic pair concept. Proposals were put forward then that the motion characteristics of Assur group should be studied in normal connecting conditions, Grade I Linkage Group should be introduced, and the PPP Type Linkage Group existence as an example was provided. Some new views were put forward in discussion of Planar Mechanism Composition Principle. And then an example of mechanism analysis was given to show that the correct statement of the Mechanism Composition Principle is helpful to solve mechanism analysis problems.

References

17 Cites in Article

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Ji-Chao Li, Ji-Qiang Li. 2021. "Improvement on Planar Mechanism Composition Principle". Global Journal of Research in Engineering - A : Mechanical & Mechanics GJRE-A Volume 21 (GJRE Volume 21 Issue A1).

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GJRE Volume 21 Issue A1

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Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

Keywords

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Classification

GJRE-A Classification FOR Code: 091399

Submission ReceivedApril 14, 2021
Peer Review Double Blind
Handling Editor
Accepted May 4, 2021
Published May 15, 2021

Version of record

v1.2

Issue date

May 30, 2021

Language

English

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