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Xinyi Liu, Zhenbing Luo, Qiang Liu, Pan Cheng and Yan Zhou
Transition delaying is of great importance for the drag and heat flux reduction of hypersonic flight vehicles. The first mode, with low frequency, and the second mode, with high frequency, exist simultaneously during the transition through the hypersonic...
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Hadiseh Karimaei, Ramin Ghorbani, Seyed Mostafa Hosseinalipour
Pág. 179 - 188
Surface instability of a swirling liquid sheet emanating from a centrifugal injector in presence of external and internal gas flows is studied in this paper. A three-dimensional flow for the liquid sheet and two-dimensional flows for external and interna...
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Liying Huang, Dongyuan Qiu, Fan Xie, Yanfeng Chen and Bo Zhang
The stability issue of a single-phase two-stage grid-connected photovoltaic system is complicated due to the nonlinear v-i characteristic of the photovoltaic array as well as the interaction between power converters. Besides, even though li...
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Bo Li, Yun Wang and Xiaobing Zhou
Multi-switching combination synchronization of three fractional-order delayed systems is investigated. This is a generalization of previous multi-switching combination synchronization of fractional-order systems by introducing time-delays. Based on the s...
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Weixuan Wang, Jingbo Peng and Yu Zhang
This paper presents a study on the modeling and control of an aero-engine within the full flight envelope using the Takagi?Sugeno (T-S) fuzzy theory. A highly accurate aero-engine small deviation state variable model (SVM) was developed using the adaptiv...
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Marco Berci and Rauno Cavallaro
A hybrid reduced-order model for the aeroelastic analysis of flexible subsonic wings with arbitrary planform is presented within a generalised quasi-analytical formulation, where a slender beam is considered as the linear structural dynamics model. A mod...
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Marco Berci and Rauno Cavallaro
A hybrid reduced-order model for the aeroelastic analysis of flexible subsonic wings with arbitrary planform is presented within a generalised quasi-analytical formulation, where a slender beam is considered as the linear structural dynamics model. A mod...
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Gian C. Rana, Ramesh Chand
Pág. 233 - 240
Double-diffusive convection in a horizontal layer of nanofluid in a porous medium is studied. The couple-stress fluid model is considered to describe the rheological behavior of the nanofluid and for porous medium Darcy model is employed. The model appli...
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Chunjie Zheng, Haitao Wang, Lanxiang Hu and Yuanli Cai
To study the hose-and-drogue system?s motion under bow waves, this paper established a dynamic model of the hose-and-drogue system based on the multibody dynamics theory and the rigid ball-and-rod model. The wake of a tanker aircraft was taken into accou...
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Zian Wang, Lei Hu, Wanghua Fei, Dapeng Zhou, Dapeng Yang, Chenxi Ma, Zheng Gong, Jin Wu, Chengxi Zhang and Yi Yang
This paper focuses on the triaxial augmentation ability of the active disturbance rejection control (ADRC) technique on the tailless layout with a fully moving wing tip to achieve high control performance for the supersonic tailless aircraft. Firstly, th...
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Tengfei Zhang and Rongjun Mu
To deal with the attitude tracking control problem of a struck or pierced geocentric polar displaced solar sail (GPDSS), an attitude adaptive control strategy is proposed in this paper under the complex conditions of unknown inertial parameters, external...
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Yanxin Yin, Yinglei Jiang, Shicheng Liu and Hao Dong
Experimental and linear stability theory (LST) investigation of boundary layer transition on a flat plate was conducted with a flow of Mach number 5. The temperature distributions and second-mode disturbances on the flat plate surface at different unit R...
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Jingze Xue, Keyu Zhuang, Tong Zhao, Miao Zhang, Zheng Qiao, Shuai Cui and Yunlong Gao
This paper proposes a control scheme combining improved particle swarm optimization (IPSO) and adaptive linear active disturbance rejection control (ALADRC) to solve the high-speed train (HST) speed tracking control problem. Firstly, in order to meet the...
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Phuong D. Ngo, Miguel Tejedor and Fred Godtliebsen
This paper proposes a robust control design method using reinforcement learning for controlling partially-unknown dynamical systems under uncertain conditions. The method extends the optimal reinforcement learning algorithm with a new learning technique ...
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Said Chaabani and Naoufel Azouz
The paper presents the modelling and stabilisation of an unconventional airship. The complexity of such a new design requires both proper dynamic modelling and control. A complete dynamic model is built here. Based on the developed dynamic model, a nonli...
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George S. Maraslidis, Theodore L. Kottas, Markos G. Tsipouras and George F. Fragulis
The double-inverted pendulum (DIP) constitutes a classical problem in mechanics, whereas the control methods for stabilizing around the equilibrium positions represent the classic standards of control system theory and various control methods in robotics...
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Christos Makris and Georgios Pispirigos
Nowadays, due to the extensive use of information networks in a broad range of fields, e.g., bio-informatics, sociology, digital marketing, computer science, etc., graph theory applications have attracted significant scientific interest. Due to its appar...
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Peng Zhang, Teng Zhang and Xin Wang
A new three-dimensional (3D) time-domain panel method is developed to solve the ship hydrodynamic problem and motions. For an advancing ship with a constant forward speed in regular waves, the ship?s hull can be discretized and processed into a number of...
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Wen-Jer Chang, Ming-Hsuan Tsai and Chin-Lin Pen
This paper investigates the observer-based fuzzy controller design method for nonlinear discrete-time singular systems that are represented by Takagi-Sugeno (T-S) fuzzy models. At first, the nonlinearity can be well-approximated with several local linear...
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Ramon Dalmau, Xavier Prats and Brian Baxley
The ability to meet a controlled time of arrival while also flying a continuous descent operation will enable environmentally friendly and fuel efficient descent operations while simultaneously maintaining airport throughput. Previous work showed that mo...
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