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目的研究软式飞艇着陆时,艇身弹性对起落装置的影响。方法建立软式飞艇艇身和起落装置的等效模型,并在LMS仿真平台中建立虚拟样机,仿真出考虑艇身弹性时起落装置着陆的动态响应。结果仿真结果显示出弹性艇身能够起到吸收和耗散能量的作用,减轻着陆时起落装置的过载和回弹次数。结论艇身弹性可以降低起落装置载荷,延长起落装置寿命,增加飞艇的安全性。
Aim To study the impact of hull flexibility on landing gear when landing airship. Methods The equivalent model of the airship and landing gear of the airship is established, and a virtual prototype is established in the LMS simulation platform to simulate the dynamic response of the landing gear landing considering the flexibility of the hull. Results The simulation results show that the flexible hull can absorb and dissipate energy and reduce the overload and the number of rebounds of landing gear when landing. Conclusion The hull flexibility can reduce the load on the landing gear, extend the life of the landing gear and increase the safety of the airship.