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CSME 2025/04
Volume 46 No.2
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195-203
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Design and Stress Analysis of a Rigid Involute Profiled Harmonic Reducer with Different Profile Modifications
Recep Karaman a and Can Civi b
aMaster's Degree Graduate, Department of Mechanical Engineering, Faculty of Engineering and Natural Sciences, Manisa Celal Bayar University, 45140, Manisa, Turkey
bAssociate Professor, Department of Mechanical Engineering, Faculty of Engineering and Natural Sciences, Manisa Celal Bayar University, 45140, Manisa, Turkey
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Abstract:
In this study, theoretically designed single-stage harmonic gear mechanisms with involute tooth profile structures, comprising rigid internal and external gears, were designed and modified according to stress values (gear root bending stress and Hertz contact stress). Two methods were used to achieve harmonic motion: the first involved cutting from the tooth head, and the second involved profile shifting within the tooth structure. Additionally, the effects of four different pressure angles (15°, 20°, 25°, and 30°) on both methods were analyzed. Gear calculations were performed using the KISSsoft® program. As a result, a gear pair capable of providing harmonic movement and achieving a high conversion rate in a single stage was designed and produced using a 3D printer. The study concluded that profile shifting was the most critical optimization method for ensuring harmonic movement without tooth interference and reducing stress values. This study aims to develop an alternative gear design for harmonic gearboxes produced in flexible gear systems or cycloid gear structures, where the tooth structure can be manufactured with conventional cutting tools and profile modifications.
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Keywords: Involute profile, Harmonic Reducer, Gearbox, KISSsoft®, Optimization
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*Corresponding author; e-mail:
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©
2025
CSME , ISSN 0257-9731
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