Browsing by Author "Whidborne, James F."

Browsing by Author "Whidborne, James F."

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  • High aspect ratio wings on commercial aircraft: a numerical and experimental approach 
    Pontillo, Alessandro (Cranfield UniversitySATM, 2019-12-20)
    The aim of this work is to assess the aeroelastic response to gust of a flexible high aspect ratio wing (HARW) single-aisle commercial aircraft and to design a viable open-loop Gust Load Alleviation (GLA) system. ...
  • High input voltage high frequency class E rectifiers for resonant inductive links 
    Aldhaher, Samer; Luk, Patrick Chi-Kwong; El Khamlichi Drissi, Khalil; Whidborne, James F. (IEEE, 2014-04-08)
    The operation of traditional rectifiers such as half-wave and bridge rectifiers in wireless power transfer applications may be inefficient and can reduce the amount of power that is delivered to a load. An alternative is to ...
  • Identification of flexible structures dynamics. 
    Dessena, Gabriele (Cranfield UniversitySATM, 2023-04)
    The pursuit of aerodynamic efficiency and the advances in materials technology, particularly in composite material, has contributed to shifting the paradigm of wing design to high aspect ratio wings. Increasing the span, ...
  • Injectable venturi for slug control. 
    Inok, Joseph Otu (Cranfield UniversitySWEE, 2019-08)
    Severe slugging is a cyclic flow regime which causes intermittent delivery of oil and gas, which could lead to flow separator flooding, production reduction, platform trips and plant shutdown. The large and rapid variation ...
  • Kolmogorov-Chaitin complexity of digital controller implementations. 
    Whidborne, James F.; McKernan, John; Gu, Da-Wei (Springer Science Business Media, 2006-07-01)
    The complexity of linear, fixed-point arithmetic digital controllers is investigated from a Kolmogorov-Chaitin perspective. Based on the idea of Kolmogorov-Chaitin complexity, practical measures of complexity are ...
  • A Kriging approach to model updating for damage detection 
    Dessena, Gabriele; Ignatyev, Dmitry I.; Whidborne, James F.; Zanotti Fragonara, Luca (Springer, 2022-06-16)
    For complex or large structures, the model updating process can be long and tedious and numerical methods can be computationally expensive. Hence, practitioners and researchers often resort to meta-modelling techniques ...
  • L1 adaptive fault‑tolerant control of stratospheric airships 
    Souanef, Toufik; Whidborne, James F.; Liu, Shi Qian (Springer, 2024-03-26)
    As the utilization of stratospheric airships becomes more prevalent, ensuring their safe operation becomes crucial. This paper explores the ability of an L1 adaptive controller to maintain fault tolerance in the actuators ...
  • Linear feedback control of transient energy growth and control performance limitations in subcritical plane Poiseuille flow 
    Martinelli, F.; Quadrio, M.; McKernan, John; Whidborne, James F. (2011-01-31)
    Suppression of the transient energy growth in subcritical plane Poiseuille flow via feedback control is addressed. It is assumed that the time derivative of any of the velocity components can be imposed at the walls as ...
  • Linear quadratic control of plane Poiseuille flow-the transient behaviour. 
    McKernan, John; Whidborne, James F.; Papadakis, George (Taylor and Francis, 2007-12)
    This paper describes the design of optimal linear quadratic controllers for single wavenumber-pair periodic 2-D disturbances in plane Poiseuille flow, and subsequent verification using a finite-volume full Navier-Stokes ...
  • A linear state-space representation of plane Poiseuille flow for control design: a tutorial. 
    McKernan, John; Papadakis, George; Whidborne, James F. (Inderscience Publishers, 2006-01-01)
    A method for the incorporation of wall transpiration into a model of lin- earised plane Poiseuille °ow is presented, with the aim of producing a state- space model suitable for the development of feedback control of ...
  • A Loewner-based system identification and structural health monitoring approach for mechanical systems 
    Dessena, Gabriele; Civera, Marco; Zanotti Fragonara, Luca; Ignatyev, Dmitry; Whidborne, James F. (Wiley, 2023-04-18)
    Data-driven structural health monitoring (SHM) requires precise estimates of the target system behaviour. In this sense, SHM by means of modal parameters is strictly linked to system identifcation (SI). However, existing ...
  • Longitudinal control laws design for a flying wing aircraft 
    Zhu, Yan. (Cranfield University, 2012-02)
    This research is concerned with the flight dynamic, pitch flight control and flying qualities assessment for the reference BWB aircraft. It aims to develop the longitudinal control laws which could satisfy the flying and ...
  • LPV systems analysis using pseudospectra 
    Alamin, Raheeg; Whidborne, James F.; Alam, Mushfiqul (IEEE, 2022-05-27)
    Pseudospectra provides a qualitative and quantitative tool for analyzing the stability sensitivity of linear systems. In this paper pseudospectral analysis is extended to Linear Parameter Varying (LPV) systems that are ...
  • Minimizing transient energy growth in plane Poiseuille flow 
    Whidborne, James F.; McKernan, John; Papadakis, George (Professional Engineering Publishing, 2008-01-01)
    The feedback control of laminar plane Poiseuille flow is considered. In common with many flows, the dynamics of plane Poiseuille flow is very non-normal. Consequently, small perturbations grow rapidly with a large transient ...
  • Model simulation suitable for an aircraft at high angle of attack 
    Mohmad Rouyan, Nurhana (Cranfield University, 2016-01)
    Simulation of a dynamic system is known to be sensitive to various factors and one of them could be the precision of model parameters. While the sensitivity of flight dynamic simulation to small changes in aerodynamic ...
  • Modelling and control of the roll-stabilised control unit of a rotary steerable system directional drilling tool 
    Alturbeh, Hamid; Whidborne, James F.; Luk, Patrick Chi-Kwong; Bayliss, Martin T. (IET, 2019-04-26)
    A directional drilling tool control unit whose design is based on servo control of a rotary valve using the roll-stabilised instrumented system approach has been successfully used in oil fields for over 20 years. Here, ...
  • Modelling and simulation of a novel bioinspired flapping-wing rotary MAV 
    Huang, Xun; Lu, Linghai; Whidborne, James F.; Guo, Shijun (German Society for Aeronautics and Astronautics (DGLR: Deutsche Gesellschaft für Luft- und Raumfahrt), 2023-09-07)
    Achieving high lift efficiency represents a major research focus in the Micro Air Vehicle (MAV) domain due to stringent size and payload constraints. The Cranfield research team presents a novel semi-biomimetic design ...
  • Modelling, simulation and verification of the Saab 340B 
    Makadia, Jeet; Millidere, Murat; Alam, Mushfiqul; Place, Simon; Whidborne, James F. (AIAA, 2023-01-19)
    Flight simulation modelling of an aircraft is required for various purposes including performance analysis, flight control design, and flying qualities analysis. The Saab 340B is a twin turboprop transport aircraft designed ...
  • Motion estimation of an aircraft model using computer vision 
    Kasula, Pavithra; Whidborne, James F.; Rana, Zeeshan A.; Ishola, Ademayowa (AIAA, 2024-01-04)
    Dynamic wind tunnel tests are used to investigate the flight dynamics of aircraft. Currently contact measurement systems are used which increase friction and require on-board instrumentation. A vision-based method is ...
  • Multi-objective optimal longitudinal flight control system design for a large flexible transport aircraft. 
    Song, Sipeng (2018-05)
    This thesis presents a multi-objective evolutionary algorithm design of a longitudinal optimal controller for a large exible transport aircraft. The algorithm uses a mixed optimization approach based on a combination of ...