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12/21/2015 | 1 MINUTE READ

Spirit AeroSystems used HyperSizer software for V-280 Valor program

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HyperSizer software automates structural sizing and load analyses.

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For the Bell V-280 fuselage prototype program, Spirit AeroSystems (Wichita, KS, US) employed HyperSizer software from Collier Research (Hampton, VA, US) for detailed sizing of the fuselage. Important structural requirements include strength, stability, stiffness and deflection/rotation limitations for severe flight, landing and ground load cases.

The V-280 Valor is competing in the Department of Defense’s Joint Multi-Role Technology Demonstrator (JMR TD) program. This is a science and technology precursor to the Department of Defense’s Future Vertical Lift program, with the goal to replace 2,000 to 4,000 medium-class utility and attack helicopters. The V-280 Valor is Bell Helicopter’s offering for the JMR-TD program. A next generation tiltrotor, the Bell V-280 Valor advanced technology tiltrotor provides unmatched speed, range and payload for expeditionary maneuvers.

The unit was designed and assembled in Spirit’s rapid prototyping facility in Wichita in just 22 months. The composite fuselage was shipped to Bell Helicopter’s facility in Amarillo, TX for final assembly, and the build continues towards a first flight in the second half of 2017.

“The design-analysis cycle for a typical aircraft program requires many iterations between the designer (CAD) and the stress analyst,” said James Ainsworth, Collier Research structural engineering. “This is a very time-consuming process.”

To meet the aggressive V-280 schedule, HyperSizer was employed in a 'design-by-analysis' approach that successfully sized and analyzed the fuselage structure. “The automated analysis tool in our software allows the stress analyst to define the required structural configuration, informing the designer about the best configuration that optimizes the stiffness of the structure,” Ainsworth said.

HyperSizer also provided the engineers with automated stress-report generation that enabled them to review and vet all relevant data in order to prove-out the structural soundness of the fuselage.

“A small team of stress and design engineers acquired the right tool set to support their in-house capabilities and efficiently deliver ahead of schedule,” Ainsworth said.

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