Browsing by Author "Lu, Linghai"

Browsing by Author "Lu, Linghai"

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  • Advanced pilot modeling for prediction of rotorcraft handling qualities in turbulent wind 
    Ji, Honglei; Lu, Linghai; White, Mark D.; Chen, Renliang (Elsevier, 2022-03-18)
    Turbulent wind is known for potentially deteriorating rotorcraft performance and handling qualities when fulfilling their operation and duties. However, related research is rarely reported and could be possibly attributed ...
  • Appraisal of handling qualities standards for rotorcraft lateral-directional dynamics 
    Cameron, Neil; White, Mark D.; Padfield, Gareth D.; Lu, Linghai (European Rotocraft Forum, 2021-01-04)
    The coupled vehicle roll-yaw-sway motion of Lateral-Directional Oscillations is often a contributor to rotorcraft Handling Qualities deficiencies. The extent of the deficiencies, and the required pilot control compensation ...
  • Case studies to illustrate the rotorcraft certification by simulation process; CS 29/27 category A rejected take-off, confined area 
    White, Mark; Dadswell, Christopher; Padfield, Gareth; van’t Hoff, Stefan; Bakker, Richard; Lu, Linghai; Quaranta, Giuseppe; Podzus, Philipp (German Society for Aeronautics and Astronautics (DGLR: Deutsche Gesellschaft für Luft- und Raumfahrt), 2023-09-07)
    This paper is one of a set presented at the 49th European Rotorcraft Forum discussing results from the EU Clean Sky 2 project, Rotorcraft Certification by Simulation (RoCS). The process developed by the RoCS team provides ...
  • Case studies to illustrate the rotorcraft certification by simulation process; CS 29/27 dynamic stability requirements 
    Lu, Linghai; Padfield, Gareth; White, Mark; Dadswell, Christopher; Quaranta, Giuseppe; van’t Hoff, Stefan; Podzus, Philipp (German Society for Aeronautics and Astronautics (DGLR: Deutsche Gesellschaft für Luft- und Raumfahrt), 2023-09-07)
    This paper is one of a set presented at the 49th European Rotorcraft Forum displaying results from the EU Clean Sky 2 project, Rotorcraft Certification by Simulation (RoCS). The process developed by the RoCS team provides ...
  • Case studies to illustrate the rotorcraft certification by simulation process; CS 29/27 low-speed controllability 
    van’t Hoff, Stefan; White, Mark; Dadswell, Christopher; Lu, Linghai; Padfield, Gareth; Quaranta, Giuseppe; Podzus, Philipp (German Society for Aeronautics and Astronautics (DGLR: Deutsche Gesellschaft für Luft- und Raumfahrt), 2023-09-07)
    This paper is one of a set presented at the 49th European Rotorcraft Forum discussing results from the EU Clean Sky 2 project, Rotorcraft Certification by Simulation (RoCS). The process developed by the RoCS team provides ...
  • 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. ...
  • The development of a pilot control adaptation metric for simulation perceptual fidelity assessment 
    Memon, Wajih A.; Cameron, Neil; White, Mark D.; Padfield, Gareth D.; Lu, Linghai (Vertical Flight Society, 2021-09-09)
    This paper reports the use of a control compensation metric to examine pilot adaptation in the objective assessment of simulation perceptual fidelity. The utility of the proposed metric to quantify different levels of pilot ...
  • Helicopter handling qualities: a study in pilot control compensation 
    Memon, W. A.; White, Mark D.; Padfield, Gareth D.; Cameron, N.; Lu, Linghai (Cambridge University Press, 2021-11-16)
    The research reported in this paper is aimed at the development of a metric to quantify and predict the extent of pilot control compensation required to fly a wide range of mission task elements. To do this, the utility ...
  • Investigating pilots’ operational behaviours while interacting with different types of inceptors 
    Korek, Wojciech Tomasz; Li, Wen-Chin; Lu, Linghai; Lone, Mudassir (Springer, 2022-06-16)
    There are different designs of inceptors applied in the modern flight deck. How do pilots define how to precisely control the aircraft as their intention? Ten pilots have been asked to take part in the flight simulation ...
  • 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 ...
  • A new heuristic approach to rotorcraft system identification 
    Lu, Linghai; Agarwal, Dheeraj; Padfield, Gareth D.; White, Mark D.; Cameron, Neil (Vertical Flight Society, 2022-11-03)
    High-fidelity rotorcraft flight simulation relies on the availability of a quality flight model that further demands a good level of understanding of the complexities arising from aerodynamic couplings and interference ...
  • Performance evaluation of UAM configurations cost estimation for the eVTOLs. 
    Wu, Xiaolong (Cranfield UniversitySATM, 2021-08)
    With the development and progress of society, the pressure on road traffic is increasing daily, causing enormous time and economic losses to the public. The concept of electric vertical take-off and landing vehicles ...
  • The potential impact of adverse aircraft-pilot couplings on the safety of tilt-rotor operations 
    Padfield, Gareth D.; Lu, Linghai (Cambridge University Press, 2022-03-17)
    This paper addresses the potential impact of adverse aircraft-pilot couplings on tiltrotor safety, when a pilot or autopilot attempts to constrain flight dynamics with strong control. The work builds on previously published ...
  • Preliminary guidelines for a requirements-based approach to certification by simulation for rotorcraft 
    van ’t Hoff, Stefan; Lu, Linghai; Padfield, Gareth D.; Podzus, Philipp; White, Mark D.; Quaranta, Giuseppe (2022-09-08)
    The paper presents an introduction to the preliminary guidelines for rotorcraft certification by simulation developed by the partners of the Clean Sky 2 project Rotorcraft Certification by Simulation – RoCS . The guidelines ...
  • Preliminary guidelines for the rotorcraft certification by simulation process: update no. 1, March 2023 
    Padfield, Gareth D.; vant' Hoff, Stefan; Lu, Linghai; Podzus, Philip; White, Mark; Quaranta, Giuseppe (Rotorcraft Certification by Simulation (RoCS), 2023-03)
    This document presents preliminary Guidance for the application of (rotorcraft) flight modelling and simulation in support of certification for compliance with standards CS-27 and CS-29, PART B (Flight) and other Flight ...
  • Review of flight simulation fidelity requirements to help reduce ‘rotorcraft loss of control in‑flight’ accident rates 
    White, Mark D.; Padfield, Gareth D.; Lu, Linghai; Advani, Sunjoo; Potter, Mario (Springer, 2021-08-21)
    This paper examines the fidelity requirements for flight simulators to improve training and address the problems associated with rotorcraft loss of control in-flight (LOC-I). To set the context, trends in rotorcraft accident ...
  • Rotorcraft flight simulation to support aircraft certification: a review of the state of the art with an eye to future applications 
    Rylko, Agata; van’t Hoff, Stefan; Lu, Linghai; Padfield, Gareth; Podzus, Philipp; White, Mark; Quaranta, Giuseppe (German Society for Aeronautics and Astronautics (DGLR: Deutsche Gesellschaft für Luft- und Raumfahrt), 2023-09-07)
    This paper presents the approach for Rotorcraft Certification by Simulation proposed within the RoCS project. In particular, the aspects of model validation and credibility assessment through the usage of uncertainty ...
  • Rotorcraft lateral-directional oscillations: the anatomy of a nuisance mode 
    Agarwal, Dheeraj; Lu, Linghai; Padfield, Gareth D.; White, Mark D.; Cameron, Neil (Vertical Flight Society, 2021-07-22)
    High-fidelity rotorcraft flight simulation relies on the availability of a quality flight model that further demands a good level of understanding of the complexities arising from aerodynamic couplings and interference ...
  • Rotorcraft simulation fidelity improvements through augmented rotor inflow 
    Agarwal, Dheeraj; Lu, Linghai; Padfield, Gareth D.; White, Mark D.; Cameron, Neil (Vertical Flight Society, 2021-09-09)
    In rotorcraft research, the prediction of correct off-axis response using a simulation model is a challenging task, particularly for hover and low-speed flight. This can be attributed to the complex aeromechanical behaviour ...
  • Scheduled flight control system of tilt-rotor VTOL PAV 
    Kang, Namuk; Whidborne, James F.; Lu, Linghai; Enconniere, Julien (AIAA, 2023-01-19)
    This paper develops the longitudinal flight control scheme for the tilt-rotor VTOL Aston Martin Volante Vision. It is envisaged that the aircraft will be flown by a "flight-naive pilot" who is less well-trained than normal. ...