Exploring Airless Tyres: Advantages, Applications, and Design Innovations
Airless tyres, also known as non-pneumatic tyres (NPT), offer a revolutionary alternative to traditional pneumatic tyres. They eliminate common drawbacks like air leaks and blowouts, require minimal maintenance, and are highly durable. Various design approaches have been adopted by companies like NASA, Michelin, and Bridgestone to enhance the performance and longevity of airless tyres. While they have several advantages such as resilience to damage and environmental friendliness, they also come with some disadvantages like lack of adjustability and vibration. Explore the technology, working principles, advantages, and limitations of airless tyres in this comprehensive overview.
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AIRLESS TYRE/ NON- PNEUMATIC TYRE Presented by Team No.1
Topics What is a pneumatic tyre and its drawbacks. What is an airless tyre? How it works? Different design approaches. Advantages and disadvantages. Applications.
Pneumatic tyres Apneumatic, or air-filled, tyre is made of an air tight inner core filled with pressurized air. The pressure of the air inside the tyre is greater than atmospheric air pressure, so the tyre remains inflated even with the weight of a vehicle resting on it. It gives a certain degree a cushioning effect as the tyre hits bumps in the road.
Drawbacks Puncture or Blowout. Ablowout at high speeds can lead to a dangerous car accident. Variations in air pressure changes tyre performance. Can blow out by gunfire or explosion.
What is airless tyre? Airless tyres or Non-pneumatic tyres (NPT) , are tyres that are not supported by air pressure.
How it works? The flexible tread and shear bands deform temporarily as the spokes bend, then quickly go back to the initial shape.
Design approach NASA S Apollo Lunar Rover Michelin
continued.. Bridgestone Resilient Technologies, LLC
Advantages Eliminates air leaks or tyre blow outs. No maintenance required. Facilitate recycling. Remains mobile even with some of the spokes are damaged or missing. Durability & Long Life. Can take gunfire or explosion. Less environmental impact.
Disadvantages Lack of adjustability. Vibration. Different Manufacturing technique. Not as economic as pneumatic tyres.
Applications Used on some small vehicles such as riding lawn mowers and motorized golf carts. In backhoe or bulldozers.
continued.. For Military vehicles Also used in All Terrine Vehicles (ATV)
Conclusion For years, vehicles have been running on pneumatic tyres and there was almost a full stop for any further improvement of tyres. In 20th century the engineers have come up with a new concept where the tyres never require air, if the drawbacks that are being encountered presently are and improved then there is good future for these tyres. And the vehicles can run without the necessity of air.
