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With the development of general aviation, UAVs are increasingly used in all areas of our life. However, electric multi-rotor UAV can't achieve long-endurance, large load transport due to battery energy density. And hybrid power system is a perfect solution to this problem. This paper raised a parameter matching method of the UAV's hybrid power system related to the pulling force, required power and...
Fan blade loss is the most serious condition of typical extreme working conditions in turbofan engines. The transient huge unbalance force leads to the complicated and destructive vibration response of the rotor system. The paper proposed a set of safety design method for the rotor system, which ensured the engine to stop safely after the fan blade lost. The variable stiffness supporting structure...
Providing racing sailboats with renewable energy sources deals with boat performances, reliability and skipper's security. In this study, an innovative solution is presented to feed a sailboat with green energy by using a hydro-generator. This paper also interests on energetic efficiency and presents the close relationship with control strategy. A new control strategy for HG is proposed and experimentally...
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