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Advances in Aircraft and Spacecraft Science Volume 2, Number 4, October 2015 , pages 391-401 DOI: https://doi.org/10.12989/aas.2015.2.4.391 |
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Effects of different roll angles on civil aircraft fuselage crashworthiness |
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Haolei Mou, Yuejuan Dua and Tianchun Zou
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| Abstract | ||
| Crashworthiness design and certification have been and will continue to be the main concern in aviation safety. The effects of roll angles on fuselage section crashworthiness for typical civil transport category aircrafts were investigated. A fuselage section with waved-plates under cargo floor is suggested, and the finite element model of fuselage section is developed to simulate drop test subjected to 7 m/s impact velocity under conditions of 0-deg, 5-deg, 10-deg and 15-deg roll angles, respectively. A comparative analysis of failure modes, acceleration responses, and energy absorption of fuselage section under various conditions are given. The results show that the change of roll angles will significantly affect fuselage deformation, seat peak overloads, and energy absorption. The crashworthiness capability of aircraft can be effectively improved by choosing appropriate landing way. | ||
| Key Words | ||
| crashworthiness; roll angle; failure mode; acceleration; energy absorption | ||
| Address | ||
| Haolei Mou, Yuejuan Dua and Tianchun Zou: Tianjin Key Laboratory of Civil Aircraft Airworthiness and Maintenance, Civil Aviation University of China, JinBei Rd 2898, DongLi District, TianJin, 300300, China | ||
