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International Research Journal of Engineering and Technology (IRJET)

e-ISSN: 2395-0056

Volume: 10 Issue: 05 | May 2023

p-ISSN: 2395-0072

www.irjet.net

Design Optimisation and Static Analysis of Non-Pneumatic Tyres Divya Balchandani1, Shalini Nawariya1, Farzan Shahid1, A.K Madan2 1Student, BTech, Mechanical Engineering, Delhi Technological University

2Professor, Department of Mechanical Engineering, Delhi Technological University

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Abstract -Transportation is regarded as one of the most important development factors for any country because it

maximizes mobility for individuals and moves loads for the industry. Tires play an important role in ensuring end-to-end connectivity. Tires and their structures have evolved to meet the needs and applications of the time. Many changes have been made to solve problems that, if resolved, may improve the performance of tyres. We are attempting to solve the problem of tyre punctures in this paper. The solution is airless tyres, or non-pneumatic tyres (NPT), which do not support the concept of compressed air. This paper presents four distinct spoke structures of a Non-Pneumatic Tire model. The structure and material investigation of airless tyres is carried out by contrasting them with pneumatic tyres. A thorough structural analysis of several airless tyres spoke geometries has been done, and these spokes have then been further analyzed for important parameters like total deformation, stress, and strain. Solidworks was used for the 3D modeling of these various designs, while Ansys Software handled the in-depth analysis. Key Words: Non-pneumatic tyre, Honeycomb spokes, Triangular spokes, Curvy spokes, Diamond Spokes, Ansys .

1. INTRODUCTION An airless tyre's basic construction is similar to that of a pneumatic tyre. They all have an internal core that contains pressurized air, which is subsequently wrapped with a layer of rubber called a tread that comes in direct contact with the ground. The tread aids in maintaining road traction and guards against sliding and skidding. Because the tread tends to wear down over time, if the tyre has not gone flat, it is normally replaced at this point. There are three sections to the NPT: a rigid hub, deformable spokes capable of withstanding vertical loads, a strengthened shear band, and a rubber tread that makes contact with the ground. Rolling resistance, Contact pressure, and carrying load capacity of NPT can be changed by modifying NPT materials and dimensions.

1.1REASONS TO PREFER NPT OVER CONVENTIONAL TYRES The importance of NPT is now understood on a global scale. The most crucial features of NPT that distinguish it from ordinary tyres are: 1.

Because of its shear band, additional suspension, and lower rolling resistance, the NPT tyre aims at performance standards above those made achievable by conventional pneumatic technology.

It offers comfortable rides, and a load-carrying capability similar to pneumatics, and because it lacks a cavity for pressurized air, it cannot malfunction due to a loss of air pressure.

Its strong lateral rigidity for improved handling without compromising comfort can be achieved, and it may eventually be able to outperform conventional tyres.

The conventional tyre is replaced with an NPT tyre, which is lighter than a regular tyre and helps to improve engine economy by lowering the overall weight of the vehicle.

Right now, tyre manufacturers must discover a means to recycle the huge pile of bald tyres that is destroying the landscape or come up with a material that is both durable and recyclable. because composite materials are typically used in airless tyres. Because most models' tread lives are longer than that of pneumatic tyres, the rubber does not need to be changed all that frequently.

Impact Factor value: 8.226

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