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Tong Lin, Mingying Huo, Naiming Qi, Jianfeng Wang, Tianchen Wang, Haopeng Gu and Yiming Zhang
Electroaerodynamic unmanned aerial vehicles (EAD-UAVs) are innovative UAVs that use high-voltage asymmetric electrodes to ionize air molecules and Coulomb force to push these ions to produce thrust. Unlike fixed-wing and rotor UAVs, EAD-UAVs contain no m...
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Yun Zheng, Xiubo Jin and Hui Yang
Asymmetric vane pitch is a key technique to suppress the forced response of downstream rotor blades. To address the problem of low-engine-order (LEO) excitation with high amplitude under an asymmetric configuration (half-and-half layout) widely recognize...
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Zhi Wang, Jun Wang, Jing Tian and Yu Liu
For periodic time-varying systems, a method of parameter identification based on the block-pulse function is presented. Firstly, the state-space equation of the system was expanded using the block-pulse function, then the recursion formula of the paramet...
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Travis Krebs, Goetz Bramesfeld and Julia Cole
The purpose of this study was to investigate and quantify the transient thrust response of two small rigid rotors in forward flight. This was accomplished using a distributed doublet-based potential flow method, which was validated against wind-tunnel ex...
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Aykut Tamer and Pierangelo Masarati
Rotorcraft stability is an inherently multidisciplinary area, including aerodynamics of rotor and fuselage, structural dynamics of flexible structures, actuator dynamics, control, and stability augmentation systems. The related engineering models can be ...
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Irina Filimonikhina,Viktor Deikun,Iryna Ienina,Mareks Mezitis,Vladimir Pirogov,Guntis Strautmanis,Sergij Yakimenko
Pág. 59 - 66
This paper reports the established conditions for static self-balancing for the case of an asymmetric rotor on two isotropic elastic supports, balanced by a passive automatic balancer of any type. In general, the plane of static imbalance does not coinci...
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Christian Frey, Graham Ashcroft, Hans-Peter Kersken, Dirk Schönweitz and Maximilian Mennicken
The aim of this paper is to demonstrate how the harmonic balance method can be used to predict rotor?rotor and stator?stator interactions in turbomachinery. These interactions occur in the form of clocking and indexing. Whereas clocking refers to the dep...
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