Parameter optimization of vibration control system for adjacent building structures based on negative stiffness inerter damper. [PDF]
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Learning-based modeling and control design for a coaxial helicopter with aerodynamic coupling
Transactions of the Institute of Measurement and ControlIn this paper, a mathematical model of a coaxial helicopter with a new configuration is successfully constructed using the learning-based method. This nonlinear model can reflect the aerodynamic coupling characteristics between the two rotors of the ...
Chen Peng, Ling Wang, Gao Ke
exaly +2 more sources
A Performance Calculation Method of Coaxial High-Speed Helicopter Engine Based on Power Matching
International Journal of Aeronautical and Space SciencesShi-Cheng Zhu, Haibo Zhang
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Canfly: A Can-Sized Autonomous Mini Coaxial Helicopter
IEEE/RJS International Conference on Intelligent RObots and Systems, 2023The development of autonomous rotary-wing UAVs has shown an evident tendency in miniaturization. However, the side effects brought by miniaturization, such as decreased load capability, shorter flight duration and reduced autonomous ability, seriously ...
Neng Pan, Rui Jin, Chao Xu, Fei Gao
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Flight Dynamics, Control, and Testing of a Coaxial Helicopter UAV with Folding Rotor Blades
Proceedings of the Vertical Flight Society 79th Annual Forum, 2023Air launched effects refer to unmanned aerial vehicles deployed from another aircraft. These unmanned aircraft can perform intelligence gathering, surveillance, and reconnaissance in contested areas in place of or prior to the arrival of manned ...
Anthony Gong +2 more
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Dynamics analysis and control of coaxial high-speed helicopter in transition flight
Aerospace Science and Technology, 2023Yao Li, Yuqing Qiu, Jinxi Lang
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Modeling and Path Following Control of a Coaxial Helicopter
2022 5th International Conference on Advanced Systems and Emergent Technologies (IC_ASET), 2022This paper proposes an approach for modeling and controlling a coaxial helicopter. An autopilot is designed using sliding mode control. It consists of a low-level controller for attitude stabilization and a high-level controller for path following ...
Helmi Abrougui, Ayoub Neffati, S. Nejim
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Benefits of Dual Propellers for a Coaxial Helicopter
Proceedings of the Vertical Flight Society 78th Annual Forum, 2022A model of a coaxial helicopter with a rigid rotor system is modified to have dual side-mounted propellers. The aircraft is simulated in trim at different flight speeds to investigate the potential benefits of the dual propellers with regard to fault ...
Alexander N. Stillman +2 more
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Global Model Identification for a Coaxial Helicopter
Proceedings of the Vertical Flight Society 78th Annual Forum, 2022In this paper, the Blade Element Momentum Theory (BEMT) hast been applied to setup a nonlinear model structure for a coaxial helicopter with a maximum take-off weight (MTOW) of 600kg.
B. Hosseini +7 more
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Trajectory Control of a Swashplate-less Coaxial Helicopter Using Nonlinear Techniques
IEEE Aerospace Conference, 2019This paper addresses the modeling and controller design of a swashplate-less coaxial helicopter with a center-of-gravity variation mechanism. The moving-mass system is used to decouple the control moments from the propulsion system.
Thanakorn Khamvilai +3 more
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