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Rigid Logged Coupling: An Improved Coupling with Less Material and Low-Stress Concentration Read chapter Read first chapter

2021 | OriginalPaper | Chapter

Optimal Dimensional Synthesis of Double-Semi-circle and Double-Semi-ellipse Path Generating Adjustable Four-Bar Mechanisms

Authors : Ganesan Govindasamy, Gadudasu Babu Rao, Rajakumar S. Rai

Published in: Trends in Mechanical and Biomedical Design

Publisher: Springer Singapore

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Abstract

Synthesis of adjustable four-bar mechanisms to generate continuous and precise path of double-semi-circle-straight-line (DSCSL) and double-semi-ellipse-straight-line (DSESL) path generation is investigated and verified. Harmonic spacing (HS) algorithm is used to improve precision points spacing along the intended profile paths. Bi-cubic interpolation is used to extract adjustable parameter value of intermediary path points along the profile of path generation conforming to uniformly incremented crank rotation value. Precision points are used in the synthesis to get dimensional values of link lengths and other parameters of adjustable mechanisms. Motion simulation of adjustable mechanism to generate intended coupler path profiles is carried out to verify the dimensional synthesis of the mechanisms. Pattern search (PS) is implemented in the synthesis of mechanism from the results of genetic algorithm (GA) as a hybrid method. Results demonstrate continuous and precise path generation of selected path profiles.

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Metadata
Title
Optimal Dimensional Synthesis of Double-Semi-circle and Double-Semi-ellipse Path Generating Adjustable Four-Bar Mechanisms
Authors
Ganesan Govindasamy
Gadudasu Babu Rao
Rajakumar S. Rai
Copyright Year
2021
Publisher
Springer Singapore
Book
Trends in Mechanical and Biomedical Design

Print ISBN: 978-981-15-4487-3

Electronic ISBN: 978-981-15-4488-0

Copyright Year: 2021

DOI
https://doi.org/10.1007/978-981-15-4488-0_9

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