New Military Run Flat Tires

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Following the successful completion of a 21-month collaborative agreement, the U.S. Army Research Laboratory awarded a four-year contract to Resilient Technologies to continue the development and testing of its unique, patent pending non-pneumatic (airless) tire (NPT) for the High Mobility Multipurpose Wheeled Vehicle (HMMWV or Humvee). The NPT will not go flat if shot or hit by shrapnel from a roadside bomb. This groundbreaking product will safeguard U.S. military personnel by providing continuous mobility during hostile events. Resilient Technologies’ NPT prototypes currently are undergoing static, dynamic, and ballistics testing.

 

airless-runflat tires

The patent pending Resilient design relies on a precise pattern of six-sided cells that are arranged, like a honeycomb, in a way that best mimics the “ride feel” of pneumatic tires. The honeycomb geometry also does a great job of reducing noise levels and reducing heat generated during usage—two common problems with past applications. “We definitely brainstormed,” says Foltz. “We wanted to create more of a matrix of cells within the tire, and it seemed kind of natural to go with the honeycomb’s hexagon shape. We tried some other shapes, such as diamond shapes, and they didn’t perform as well.”