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Optimization Analysis on the Crashworthiness of Light Aircrafts

Author

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  • Pu-Woei Chen

    (Tamkang University, New Taipei City, Taiwan)

  • Yung-Yun Chen

    (Tamkang University, New Taipei City, Taiwan)

Abstract

To protect passengers, large aircraft are equipped with multiple mechanisms to absorb impact energy during a crash. However, light aircraft rely only on the cabin structure to withstand the compression and energy generated during a crash. This study performed a topology optimization analysis on the model structure by using Abaqus/optimization and used strain energy as the objective function and cabin volume as a constraint to develop the optimal model. Subsequently, this work performed dynamic crash simulations based on the optimal and original models by using Abaqus/explicit. Compared with the original model, the optimal model yielded a 12% increase in the safety zone of the diagonal beams, a 13% increase in the X-direction safety zone, and a 10% increase in the overall safety zone. The results confirm that topology optimization can be used to effectively improve the crashworthiness of light aircraft.

Suggested Citation

  • Pu-Woei Chen & Yung-Yun Chen, 2015. "Optimization Analysis on the Crashworthiness of Light Aircrafts," International Journal of Manufacturing, Materials, and Mechanical Engineering (IJMMME), IGI Global, vol. 5(3), pages 1-23, July.
    • Handle: RePEc:igg:jmmme0:v:5:y:2015:i:3:p:1-23
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