Simulator Design Features for Helicopter Shipboard Landings

1987 ◽  
Vol 31 (2) ◽  
pp. 233-237
Author(s):  
Daniel J. Sheppard ◽  
Joyce Madden ◽  
Sherrie A. Jones
Keyword(s):  
Field Of View ◽  
Design Features ◽  
Pilot Performance ◽  
Training Systems ◽  
Visual Technology ◽  
Vertical Takeoff And Landing ◽  
Current Design ◽  
Simulator Design ◽  
Rotor Model ◽  
Vertical Takeoff

The Vertical Takeoff and Landing Simulator (VTOL) at the Naval Training Systems Center's (NTSC) Visual Technology Research Simulator (VTRS) was used to study the effects of simulator design features on pilot performance in helicopter shipboard landings. The research was designed to evaluate the effects of current design features on the SH—60B Operational Flight Trainer (OFT) used to train helicopter shipboard landing and four proposed simulator design modifications. These were: (1) scene detail (SH—60B OFT scene versus an upgraded VTRS scene), (2) field-of-view (VTRS wide versus a smaller SH—60B OFT field-of-view), (3) dynamic seat cueing (on versus off), and (4) dynamic inflow (standard rotor model available in existing trainers versus an updated rotor model). These factors were tested across two levels of seastate. On the basis of the factors studied in the experiment, the wider field-of-view, the more detailed scene and the updated rotor model are recommended for use. The dynamic seat cueing evaluated in this study is not recommended at this time.

Simulator Design Features for Helicopter Landing on Small Ships

1984 ◽  
Vol 28 (11) ◽  
pp. 1018-1022 ◽  
Author(s):  
Daniel P. Westra ◽  
Gavan Lintern
Keyword(s):  
Transfer Of Training ◽  
Field Of View ◽  
Technology Research ◽  
Visual Technology ◽  
Skill Maintenance ◽  
Helicopter Landing ◽  
Simulator Design ◽  
Transition Training ◽  
Seat Vibration ◽  
Rotary Wing

The Visual Technology Research Simulator (VTRS) at the Naval Training Equipment Center was used to study the effects of six simulator features on performance for helicopter landings on small ships. The purpose of the experiment was to obtain information relevant to the design of simulators used for skill maintenance and transition training, and to obtain information for making decisions about future transfer-of-training studies. The six simulator equipment factors were ship detail (high-detail deck and hangar markings versus no deck and hangar markings), field of view (VTRS-wide versus reduced SH-60B operational flight trainer field of view), system visual lag (217 msec versus 117 msec), g-seat rate cuing (off versus on), g-seat vibration cuing (off versus on), and collective sound cuing (off versus on). These factors were tested across two levels of seastate and pilot expedience. Pilots who participated in the experiment were experienced Navy H-3 rotary wing pilots. Results indicated large effects of ship detail, moderate effects for visual lag, small effects for field of view, and no meaningful effects for the g-seat factors and collective sound.

Simulator Design and Instructional features for Air-to-Ground Attack: Transfer Study

1986 ◽  
Vol 30 (10) ◽  
pp. 1038-1042
Author(s):  
Daniel Sheppard ◽  
Daniel Westra ◽  
Gavan Lintern
Keyword(s):  
Field Of View ◽  
Simulator Training ◽  
Visual Technology ◽  
Simulator Design ◽  
Methodological Problems ◽  
Naval Aviators ◽  
Student Naval Aviators ◽  
And Training ◽  
Effectiveness Data ◽  
Transfer Study

A transfer-of-training experiment was conducted to provide guidelines for simulator design and training procedures for air-to-ground attack. Two levels of scene detail (complex day scene versus a low detail dusk scene), three levels of field of view (160H X 80V, 135H X 60V, 103H X 60V), and three levels of simulator training trials (24, 48, 72) were tested in the experiment. Student Naval Aviators (SNAs) were trained in the Visual Technology Research Simulator (VTRS) in 30-degree bombing prior to their standard weapon training phase. Other students, not pretrained in the VTRS, were used for control comparisons. Training in the VTRS helped SNAs use their weapons flight time in the TA-4J more effectively. Forty-eight simulator trials were recommended as adequate pretraining for 30-degree bombing. There was no evidence of differential transfer for the scene detail and field-of-view factors. The least expensive field of view option tested was recommended. However, there were methodological problems with the scene type comparison and the apparent transfer equivalence of the two scenes may not fully indicate their relative training effectiveness. Data from other VTRS experiments suggest the superiority of the day scene and it was recommended.

scholarly journals Using Fuzzy Logic to Stabilize the Position of a Multi Rotor

2019 ◽  
Vol 49 (4) ◽  
pp. 441-461
Author(s):  
Karol Bęben ◽  
Norbert Grzesik ◽  
Konrad Kuźma
Keyword(s):  
Fuzzy Logic ◽  
Control System ◽  
Unmanned Aerial Vehicle ◽  
Stabilization System ◽  
Hardware In The Loop ◽  
Vertical Takeoff And Landing ◽  
Aerial Vehicle ◽  
Arduino Microcontroller ◽  
Rotor Model ◽  
Vertical Takeoff

Abstract The article is a continuation of research into a stabilization system for the Unmanned Aerial Vehicle of vertical takeoff and landing. The stabilization system was designed on the basis of a fuzzy logic Mamdani type controller. In the framework of the research, the authors built a test stand with a Multi Rotor model, which allows “Hardware In The Loop” testing in real time. The control system was written in the Matlab/Simulink software and implemented to the Arduino microcontroller.

scholarly journals Challenges and key requirements of batteries for electric vertical takeoff and landing aircraft

Joule ◽  
2021 ◽  
Author(s):  
Xiao-Guang Yang ◽  
Teng Liu ◽  
Shanhai Ge ◽  
Eric Rountree ◽  
Chao-Yang Wang
Keyword(s):  
Vertical Takeoff And Landing ◽  
Vertical Takeoff

Dynamics Simulation and Analysis of Transition Stage of Tilt-Rotor Aircraft

2016 ◽  
Vol 842 ◽  
pp. 251-258 ◽  
Author(s):  
Muhammad Rafi Hadytama ◽  
Rianto A. Sasongko
Keyword(s):  
Dynamic Response ◽  
Equations Of Motion ◽  
Flight Dynamics ◽  
Dynamics Simulation ◽  
Tilt Rotor ◽  
Vertical Takeoff And Landing ◽  
Improved Stability ◽  
Simulation Results ◽  
Vtol Aircraft ◽  
Vertical Takeoff

This paper presents the flight dynamics simulation and analysis of a tilt-rotor vertical takeoff and landing (VTOL) aircraft on transition phase, that is conversion from vertical or hover to horizontal or level flight and vice versa. The model of the aircraft is derived from simplified equations of motion comprising the forces and moments working on the aircraft in the airplane's longitudinal plane of motion. This study focuses on the problem of the airplane's dynamic response during conversion phase, which gives an understanding about the flight characteristics of the vehicle. The understanding about the flight dynamics characteristics is important for the control system design phase. Some simulation results are given to provide better visualization about the behaviour of the tilt-rotor. The simulation results show that both transition phases are quite stable, although an improved stability can give better manoeuver and attitude handling. Improvement on the simulation model is also required to provide more accurate and realistic dynamic response of the vehicle.

The Canterbury Child's Aid: A Binaural Spatial Sensor for Research with Blind Children

1979 ◽  
Vol 73 (5) ◽  
pp. 179-184
Author(s):  
E. R. Strelow ◽  
J. T. Boys
Keyword(s):  
Future Development ◽  
Background Noise ◽  
Field Of View ◽  
Basic Operation ◽  
Noise Levels ◽  
Design Features ◽  
Blind Children ◽  
Automatic Level

A binaural sensory aid for research with blind children is described along with the rationale for its design features. The basic operation of this form of aid is described in detail with particular reference to those features that control the sensing parameters of range, direction and field of view. A novel automatic level controller which ensures that device sounds remain audible but not excessively loud, in spite of changes in background noise levels, is also described. The likely future development of these forms of sonic aids is discussed.

Field of View Requirements for Deployable Training Systems: Effect of Field of View on Roll Control

2008 ◽  
Vol 52 (19) ◽  
pp. 1560-1564
Author(s):  
Marc Winterbottorn ◽  
Robert Patterson ◽  
Jim Gaska ◽  
Ryan Amann ◽  
Justin Prost
Keyword(s):  
Field Of View ◽  
Roll Control ◽  
Training Systems

scholarly journals Power Line Charging Mechanism for Drones

Drones ◽  
2021 ◽  
Vol 5 (4) ◽  
pp. 108
Author(s):  
Boaz Ben-Moshe
Keyword(s):  
Homeland Security ◽  
Optimal Solution ◽  
Power Line ◽  
Flight Time ◽  
Security Applications ◽  
Long Duration ◽  
Vertical Takeoff And Landing ◽  
Charging Mechanism ◽  
Commercial Photography ◽  
Vertical Takeoff

The use of multirotor drones has increased dramatically in the last decade. These days, quadcopters and Vertical Takeoff and Landing (VTOL) drones can be found in many applications such as search and rescue, inspection, commercial photography, intelligence, sports, and recreation. One of the major drawbacks of electric multirotor drones is their limited flight time. Commercial drones commonly have about 20–40 min of flight time. The short flight time limits the overall usability of drones in homeland security applications where long-duration performance is required. In this paper, we present a new concept of a “power-line-charging drone”, the idea being to equip existing drones with a robotic mechanism and an onboard charger in order to allow them to land safely on power lines and then charge from the existing 100–250 V AC (50–60 Hz). This research presents several possible conceptual models for power line charging. All suggested solutions were constructed and submitted to a field experiment. Finally, the paper focuses on the optimal solution and presents the performance and possible future development of such power-line-charging drones.

Development of a Fuel Cell Hybrid Electric Vertical Takeoff and Landing Aircraft Power Train

2021 ◽  
Author(s):  
Mengxuan Wei ◽  
Maohang Qiu ◽  
Shuai Yang ◽  
Xiaoyan Liu ◽  
Jeff Taylor ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Cell Hybrid ◽  
Power Train ◽  
Vertical Takeoff And Landing ◽  
Hybrid Electric ◽  
Vertical Takeoff ◽  
Fuel Cell Hybrid

scholarly journals CReSIS airborne radars and platforms for ice and snow sounding

2019 ◽  
Vol 61 (81) ◽  
pp. 58-67 ◽  
Author(s):  
Emily Arnold ◽  
Carl Leuschen ◽  
Fernando Rodriguez-Morales ◽  
Jilu Li ◽  
John Paden ◽  
...  
Keyword(s):  
Unmanned Aerial Systems ◽  
Frequency Spectra ◽  
Radar Systems ◽  
Measurement Resolution ◽  
Vertical Takeoff And Landing ◽  
Specific Frequency ◽  
Platform Development ◽  
Aerial Systems ◽  
Future Work ◽  
Vertical Takeoff

AbstractThis paper provides an update and overview of the Center for Remote Sensing of Ice Sheets (CReSIS) radars and platforms, including representative results from these systems. CReSIS radar systems operate over a frequency range of 14–38 GHz. Each radar system's specific frequency band is driven by the required depth of signal penetration, measurement resolution, allocated frequency spectra, and antenna operating frequencies (often influenced by aircraft integration). We also highlight recent system advancements and future work, including (1) increasing system bandwidth; (2) miniaturizing radar hardware; and (3) increasing sensitivity. For platform development, we are developing smaller, easier to operate and less expensive unmanned aerial systems. Next-generation platforms will further expand accessibility to scientists with vertical takeoff and landing capabilities.

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