Recently, bicycles are used as exercising machines and traffic vehicles. Planetary gear trains can be used as the transmission systems for bicycles. The purpose of this work is to propose a design methodology for the kinematic design of automatic gear transmissions with planetary gear trains for bicycles. First, applying the check list method (combining and extending methods), the design concepts are proposed. Then, based on the the design concepts proposed and train value equation of planetary gear train, we derive the gear ratio equations of automatic three-speed gear transmissions for each invention. Three automatic three-speed gear transmissions are designed to illustrate the design methodology. Based on the proposed methodology, all automatic gear transmissions with planetary gear trains can be synthesized.

مقالهطراحی سیستم تعویض دنده اتوماتیک دوچرخه، مشتمل بر 8 صفحه، به زبان انگلیسی، تایپ شده، به همراه تصاویر، فرمول ها و روابط ریاضی با فرمت pdf، به ترتیب زیر گردآوری شده است:

• Abstract
• Introduction
• Planetary Gear Train
• Existing Designs
• Train Value Equation
• Centrifugal Clutch and One-Way Clutch
• Automatic speed changer
• Innovation Design
• Design Concepts
• Design Constrains
• Innovation Design
• Kinematic Design
• Conclusion
• Acknowledgements
• References

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طراحی سیستم تعویض دنده اتوماتیک دوچرخه