Conceptualisation of modular airless tyre using TRIZ and Pugh method

Foo, Cher Liang (2022) Conceptualisation of modular airless tyre using TRIZ and Pugh method. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Tyre is a circular, ring-shaped component of a vehicle that comes into contact with the ground. Tyre functions to keep the vehicle in contact with the ground by providing the required traction and to maintain the vehicle's load. Inflation pressure has an impact on grip and the likelihood of a pneumatic tyre blowout and induce vehicle instability. Thus, airless tyres are being developed in response to a growing need for safer tyres to address pneumatic tyre issues. However, existing airless tyre have difficulty to be modify after it has been manufactured, as well as its lack of adaptability. This project presents the new concept of car modular airless tyre develop using the integration of theory of creative problem solving (TRIZ) and Pugh methods. Functional analysis is used to identify and analyse the interactions of airless tyre components. The 39 engineering parameters, 40 inventive principles contradiction matrix are used to generate the solutions. Then, the identified 40. inventive principle solution are refined into specific solution strategy that is used to build the concept of modular airless tyre. The lack of adjustability of airless tyre is attributed to insufficient interaction between the spoke, hub, and outer ring. 40 inventive principles, including #1 Segmentation, #6 Universality, #28 Replace Mechanical System, and #34 Rejecting and Regenerating Parts, are refined into specific solution strategies that are used to generate four new innovative conceptual sketches. Pugh concept selection was used to evaluate and determine the final concept of modular airless tyre. The results shows that concept 2 ranked the first and has the highest-ranking value among the 4 concepts generated.

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