What question did this study set out to answer?

The aim is to evaluate the stress distribution effect of an intermediate ring in airless tires and its impact on rolling resistance.

March 26, 2026Open Access

Verification of Stress Distribution Effect by Intermediate Ring in Airless Tires with Linked Zig-zag Structure

Key Points

The aim is to evaluate the stress distribution effect of an intermediate ring in airless tires and its impact on rolling resistance.
Quantitative evaluation of stress mitigation effect due to intermediate ring.
Analysis of load distribution under applied forces.
Assessment of strain energy related to rolling resistance.
The intermediate ring configuration effectively reduces localized stress.
Rolling resistance is lowered due to improved stress distribution.
Total strain energy is decreased, enhancing overall tire efficiency.

Abstract

Airless tires (non-pneumatic tires) are gaining significant attention from the point of view of providing the advantage of puncture-less operation. The proposed interconnected zig-zag structure for the airless tire distributes applied load towards circumferential direction and mitigates localized stress. So, it is expected to lower rolling resistance. In this study, the stress mitigation effect with regards to the configuration of intermediate ring will be quantitatively evaluated and its underlying mechanisms are clarified. It is also confirmed the total strain energy, which strongly affect to rolling resistance, can be reduced by improving the stress mitigation effect using the structure.

Verification of Stress Distribution Effect by Intermediate Ring in Airless Tires with Linked Zig-zag Structure

Key Points

Abstract

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