The Experts below are selected from a list of 21 Experts worldwide ranked by ideXlab platform
Craig R Edkins - One of the best experts on this subject based on the ideXlab platform.
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the prediction of Pilot Opinion ratings using optimal and sub optimal Pilot models
1994Co-Authors: Craig R EdkinsAbstract:Abstract : This study details the development of a sub-optimal Pilot model that blended the classical and optimal Pilot model approaches in an attempt to achieve the advantages of each. This model used a numerical solution to the linear quadratic Gaussian problem to find the Pilot gain, lead, and lag values that minimized a performance index consisting of task error and control usage. This development was conducted in four phases. First, an optimal Pilot model developed by Systems Technology, Incorporated, was analyzed in detail. This analysis included a step-by-step example problem to clarify the model's logic and an in-depth sensitivity analysis of the model's parameters. Second, a ground and airborne evaluation of human Pilot response was conducted using the Calspan variable stability Lear II aircraft. Primary Pilot response parameters were recorded and examined using statistical and Fourier transform analysis in an attempt to provide insight into human Pilot response. Third, a numerical solution to the linear quadratic Gaussian control problem that allows the compensator form to be predetermined was derived. Finally, the sub-optimal Pilot model was developed and an analysis of the model's parameters was conducted.
James C. Mceachen - One of the best experts on this subject based on the ideXlab platform.
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A Limited Evaluation of Predicting Pilot Opinion of Aircraft Handling Qualities in the Landing Phase of Flight Using the Control Anticipation Parameter and Bandwidth Criteria (HAVE CAP).
1996Co-Authors: David A. Kivioja, Christopher C. Mccann, Mark R. Schaible, David N. Larson, James C. MceachenAbstract:Abstract : This technical report presents the results of a limited evaluation of predicting Pilot Opinion of aircraft handling qualities in the landing phase of flight using the control anticipation parameter (CAP) and bandwidth criteria. The objective of this flight-test was to evaluate the validity of predicting Pilot Opinion using the CAP and bandwidth criteria. The CAP was defined as in MIL-STD-1797A, Flying Qualities of Piloted Aircrafl. The bandwidth criterion used the current definition in MIL-STD- 1 797A along with a new dropback criterion. Actual Pilot Opinion was obtained by flying the Variable-Stability In-Flight Simulator Test Aircraft (VISTA) NF- 1 6D in the approach and landing phase of flight. Testing was requested by the Flight Dynamics Laboratory, Wright-Patterson AFB, Ohio, and was conducted under the authority of the Commandant, USAF Test Pilot School. The results of this test will be used to revise the short-term pitch response requirements in MIL-STD- 1 797B. This flight-test complemented research done by the Flight Dynamics Laboratory, Wright-Patterson AFB, Ohio (WL/FIGC), in predicting Pilot Opinion during the landing phase of flight
David A. Kivioja - One of the best experts on this subject based on the ideXlab platform.
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A Limited Evaluation of Predicting Pilot Opinion of Aircraft Handling Qualities in the Landing Phase of Flight Using the Control Anticipation Parameter and Bandwidth Criteria (HAVE CAP).
1996Co-Authors: David A. Kivioja, Christopher C. Mccann, Mark R. Schaible, David N. Larson, James C. MceachenAbstract:Abstract : This technical report presents the results of a limited evaluation of predicting Pilot Opinion of aircraft handling qualities in the landing phase of flight using the control anticipation parameter (CAP) and bandwidth criteria. The objective of this flight-test was to evaluate the validity of predicting Pilot Opinion using the CAP and bandwidth criteria. The CAP was defined as in MIL-STD-1797A, Flying Qualities of Piloted Aircrafl. The bandwidth criterion used the current definition in MIL-STD- 1 797A along with a new dropback criterion. Actual Pilot Opinion was obtained by flying the Variable-Stability In-Flight Simulator Test Aircraft (VISTA) NF- 1 6D in the approach and landing phase of flight. Testing was requested by the Flight Dynamics Laboratory, Wright-Patterson AFB, Ohio, and was conducted under the authority of the Commandant, USAF Test Pilot School. The results of this test will be used to revise the short-term pitch response requirements in MIL-STD- 1 797B. This flight-test complemented research done by the Flight Dynamics Laboratory, Wright-Patterson AFB, Ohio (WL/FIGC), in predicting Pilot Opinion during the landing phase of flight
Max Mulder - One of the best experts on this subject based on the ideXlab platform.
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design and evaluation of a flight envelope protection haptic feedback system
Analysis Design and Evaluation of Human-Machine Systems, 2016Co-Authors: Joost Ellerbroek, M Rodriguez J M Y Martin, Thomas Lombaerts, M M Van Paassen, Max MulderAbstract:Abstract: This paper describes the design and evaluation of a shared control, haptic feedback system to communicate Flight Envelope Protection System intent. The concept uses a combination of stiffness feedback and vibration to communicate proximity of the aircraft state to flight envelope boundaries. In addition, a stick center shift can be applied by the envelope protection system to cooperatively perform corrective actions in case of severe excursions of the envelope margins. Results from the evaluation experiment show improved performance with haptic feedback in both scenarios. Workload ratings were unaffected. Pilot Opinion was unanimously positive, especially with regard to the combination of stiffness feedback and vibration cues.
Richard J Ranaudo - One of the best experts on this subject based on the ideXlab platform.
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ICEPro Icing Contamination Envelope Protection system ISP Icing Severity Parameter
2014Co-Authors: Richard J Ranaudo, Borja Martos, Billy Norton, David R Gingras, Thomas P Ratvasky, Billy Barnhart, Null H HypothesisAbstract:The utility of the Icing Contamination Envelope Protection (ICEPro) system for mitigating a potentially hazardous icing condition was evaluated by 29 Pilots using the NASA Ice Contamination Effects Flight Training Device (ICEFTD). ICEPro provides real time envelope protection cues and alerting messages on Pilot displays. The Pilots participating in this test were divided into two groups; a control group using baseline displays without ICEPro, and an experimental group using ICEPro driven display cueing. Each group flew identical precision approach and missed approach procedures with a simulated failure case icing condition. Pilot performance, workload, and survey questionnaires were collected for both groups of Pilots. Results showed that real time assessment cues were effective in reducing the number of potentially hazardous upset events and in lessening exposure to loss of control following an incipient upset condition. Pilot workload with the added ICEPro displays was not measurably affected, but Pilot Opinion surveys showed that real time cueing greatly improved their situation awareness of a hazardous aircraft state. Nomenclatur
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Piloted simulation to evaluate the utility of a real time envelope protection system for mitigating in flight icing hazards
2011Co-Authors: Richard J Ranaudo, Borja Martos, Billy Norton, Tn Usa, David R Gingras, Billy P Barnhart, Thomas P Ratvasky, Eugene MorelliAbstract:The utility of the Icing Contamination Envelope Protection (ICEPro) system for mitigating a potentially hazardous icing condition was evaluated by 29 Pilots using the NASA Ice Contamination Effects Flight Training Device (ICEFTD). ICEPro provides real time envelope protection cues and alerting messages on Pilot displays. The Pilots participating in this test were divided into two groups; a control group using baseline displays without ICEPro, and an experimental group using ICEPro driven display cueing. Each group flew identical precision approach and missed approach procedures with a simulated failure case icing condition. Pilot performance, workload, and survey questionnaires were collected for both groups of Pilots. Results showed that real time assessment cues were effective in reducing the number of potentially hazardous upset events and in lessening exposure to loss of control following an incipient upset condition. Pilot workload with the added ICEPro displays was not measurably affected, but Pilot Opinion surveys showed that real time cueing greatly improved their situation awareness of a hazardous aircraft state.