Browsing by Author "Whidborne, James F."

Browsing by Author "Whidborne, James F."

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  • Backstepping sliding-mode control of stratospheric airships using disturbance-observer 
    Liu, Shi Qian; Whidborne, James F.; He, Lei (Elsevier, 2020-11-16)
    In the presence of unknown disturbances and model parameter uncertainties, this paper develop a nonlinear backstepping sliding-mode controller (BSMC) for trajectory tracking control of a stratospheric airship using a ...
  • A benchtop flight control demonstrator 
    Duran, Joris R.; Whidborne, James F.; Carrizales, Martin (SAGE, 2019-07-27)
    A feedback control demonstrator is described. The demonstrator is intended for the demonstration of control principles applied to flight control of fixed-wing aircraft and hence is suitable for aeronautical programmes. The ...
  • Bilinear modelling and attitude control of a quadrotor 
    Seah, Chee Hwee; Inyang, Isonguyo J.; Whidborne, James F. (Elsevier, 2018-01-11)
    The design of a bilinear controller for a quadrotor and its subsequent stability and performance are presented. A Carleman bilinearization technique is applied to the the nonlinear equations of motion of a quadrotor to ...
  • Bilinear modelling and bilinear PI control of directional drilling 
    Inyang, Isonguyo J.; Whidborne, James F.; Bayliss, Martin T. (IEEE, 2016-11-10)
    This paper presents the design of an inclination- and azimuth-hold controllers and their subsequent stability and performance analysis for directional drilling tools as typically used in the oil industry. Using an input ...
  • Bilinear modelling, control and stability of directional drilling 
    Inyang, Isonguyo J.; Whidborne, James F. (Elsevier, 2018-10-25)
    This paper proposes an approach for the attitude control of directional drilling tools for the oil and gas industry. A bilinear model of the directional drilling tool is proposed and it characterises the nonlinear properties ...
  • Biomimetic vision-based collision avoidance system for MAVs. 
    Isakhani, Hamid (2017-05)
    This thesis proposes a secondary collision avoidance algorithm for micro aerial vehicles based on luminance-difference processing exhibited by the Lobula Giant Movement Detector (LGMD), a wide-field visual neuron located ...
  • Classification of flow regimes using a neural network and a non-invasive ultrasonic sensor in an S-shaped pipeline-riser system 
    Nnabuife, Somtochukwu Godfrey; Kuang, Boyu; Rana, Zeeshan A.; Whidborne, James F. (Elsevier, 2021-11-24)
    A method for classifying flow regimes is proposed that employs a neural network with inputs of extracted features from Doppler ultrasonic signals of flows using either the Discrete Wavelet Transform (DWT) or the Power ...
  • Collision avoidance systems for UAS operating in civil airspace 
    Alturbeh, Hamid (Cranfield University, 2014-11)
    Operation of Unmanned Aerial Vehicles (UAVs) in civil airspace is restricted by the aviation authorities which require full compliance with regulations that apply for manned aircraft. This thesis proposes control algorithms ...
  • Computational Air Traffic Management 
    Azzopardi, Marc Anthony (Cranfield University, 2015-04)
    World air transport has been on a steady exponential rise since the 1940’s and the trend has shown remarkable resilience to external shocks. The level of air traffic has greatly exceeded the wildest expectations of the ...
  • Control of an eVTOL using nonlinear dynamic inversion 
    Enenakpogbe, Emmanuel; Whidborne, James F.; Lu, Linghai (IEEE, 2022-05-27)
    This paper presents a Nonlinear Dynamic Inversion (NDI) based flight controller using virtual controls, generalised forces and moments for the longitudinal motion control of a VTOL aircraft including transition manoeuvres. ...
  • Control of plane Poiseuille flow using the Kreiss constant 
    Quénon, Pierre; Whidborne, James F. (Springer, 2023-01-21)
    This paper examines the effectiveness of a recent method based on Kreiss’s constant minimization for designing output-feedback compensators to control instabilities in a laminar plane Poiseuille flow. The flow dynamics are ...
  • Control of plane poiseuille flow: a theoretical and computational investigation 
    McKernan, John (Cranfield University, 2006-04)
    Control of the transition of laminar flow to turbulence would result in lower drag and reduced energy consumption in many engineering applications. A spectral state-space model of linearised plane Poiseuille flow with wall ...
  • Control system development for autonomous soaring 
    Akhtar, Naseem (Cranfield University, 2010-01)
    Thermal and dynamic soaring are two techniques commonly used by birds to extract energy from the atmosphere. This enables them to reduce, energy used during flight and increases their endurance. The thermal soaring ...
  • Decision-making for unmanned aerial vehicle operation in icing conditions 
    Armanini, S. F.; Polak, M.; Gautrey, James E.; Lucas, A.; Whidborne, James F. (Springer, 2016-10-01)
    With the increased use of unmanned aerial systems (UAS) for civil and commercial applications, there is a strong demand for new regulations and technology that will eventually permit for the integration of UAS ...
  • Degraded planetary tracking control of an omni-directional vectored-thruster aerostat 
    Chen, Li; Whidborne, James F.; Dong, Qi; Duan, Dengping; Liu, Jinguo (American Society of Civil Engineers, 2018-10-30)
    The problem of horizontal-plane tracking control of an omni-directional, four vectored-thruster aerostat when subjected to actuator failure is considered. The actuator failures result in the aerostat becoming underactuated, ...
  • Design and analysis of robust controllers for directional drilling tools 
    Ghole, Amaan (Cranfield University, 2016-08)
    Directional drilling is a very important tool for the development of oil and gas deposits. Attitude control which enables directional drilling for the efficient placement of the directional drilling tools in petroleum ...
  • Design of poiseuille flow controllers using the method of inequalities 
    McKernan, John; Whidborne, James F.; Papadakis, George (Springer Science Business Media, 2009-02-01)
    This paper investigates the use of the method of inequalities (MoI) to design output-feedback compensators for the problem of the control of instabilities in a laminar plane Poiseuille flow. In common with many flows, ...
  • Designing low-weight switched reluctance motors for electric multirotor propulsion system 
    Biczyski, Marcin; Sehab, Rabia; Krebs, Guillaume; Whidborne, James F.; Luk, Patrick Chi-Kwong (Society of Electricity, Electronics and Information and Communication Technologies, 2021-10-21)
    One of the ways in which we can facilitate the introduction of UAVs, especially autonomous ones, into public airspaces is to increase their safety. Brushless DC motors used for the majority of RC vehicles have ...
  • Development of aerodynamic and propulsion models using the iterative equation error method 
    Millidere, Murat; Akgül, Ferhat; Leblebicioğlu, Kemal; Whidborne, James F. (MDPI, 2023-12-21)
    For developing high-fidelity flight simulations, an accurate and complete representation of the aerodynamic characteristics of the aircraft is necessary. To obtain a realistic aerodynamic database, system identification ...
  • Development of gas-liquid flow regimes identification using a noninvasive ultrasonic sensor, belt-shape features, and convolutional neural network in an S-shaped riser 
    Nnabuife, Somtochukwu Godfrey; Kuang, Boyu; Whidborne, James F.; Rana, Zeeshan A. (IEEE, 2021-07-14)
    The problem of classifying gas-liquid two-phase flow regimes from ultrasonic signals is considered. A new method, belt-shaped features (BSFs), is proposed for performing feature extraction on the preprocessed data. A ...