Simulation and Analysis of Crashwort

Simulation and Analysis of Crashworthiness of Fuel Tank for Helicopters

Crashworthiness requirement of fuel tanks is one of the important requirements in helicopter designs. The relations among the protection frame, textile layer and rubber layer of the fuel tank are introduced. Two appropriate FE models are established, one is for an uncovered helicopter fuel tank without protection frame, and the other is for fuel tank with protection frame. The dynamic responses of the two types of fuel tanks impinging on the ground with velocities of 17.3 m/s are numerically simulated for the purpose of analyzing energy-absorbing capabilities of the textile layer and protection frame. The feasibility of the current crashworthiness design of the fuel tank is examined though comparing the dynamic response behaviors of the two fuel tanks.

作 者： LUO Cheng LIU Hua YANG Jia-ling LIU Kai-xin   作者单位： LUO Cheng,LIU Hua,YANG Jia-ling(Institute of Solid Mechanics, Beijing University of Aeronautics and Astronautics, Beijing 100083, China)

LIU Kai-xin(Department of Mechanics and Engineering, Peking University, Beijing 100871, China) 

刊 名： 中国航空学报（英文版）  ISTIC 英文刊名： CHINESE JOURNAL OF AERONAUTICS  年，卷(期)： 2007 20(3)  分类号： V2  关键词： fuel tank   crashworthiness   helicopter   FEM  

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