Design, Fabrication, and Simulation Analysis of Innovative Chainless Leverage Bicycle

Abstract

For the past few decades, many attempts have been made to design/suggest innovative and effective ways to create bicycles using chainless drives. Although chained bicycles are still widely used because they are lightweight and have low initial cost, as off-road riding torque requirements rise, we have observed that the chain either breaks or disengages from the sprocket. Many designs like Worm and bevel gears make up most of the newly suggested mechanical ideas for altering or replacing chains. A significant obstacle to this progress is the bicycle's speed, the cost of producing the gears, and the cost of maintenance or repair. First a CAD model of Chainless Leverage mechanism that has preferred advantages of low maintenance cost, high speed, high durable and reliable over chained bicycles was created with some modifications in its components from chained bicycle. Stress, force, fatigue and factors of safety analysis were made for evaluating different mechanical properties for different materials and finalizing safe, efficient and cost-effective materials for different parts of the project. A 3D print Model of the mechanism has also been fabricated for checking feasibility of the mechanism. The results of maximum stress, maximum force, factor of safety and yield strength have been obtained from CAD model simulations for different materials and accordingly materials selections have been made for different components. Finally, based on the selected materials, and 3D print Model testing a chainless Leverage mechanism have been fabricated. The fabricated chainless leverage bicycle was found with low maintenance cost, durable, reliable and high speed.