scholarly journals Objective motion cueing criteria investigation based on three flight tasks

2017 ◽  
Vol 121 (1236) ◽  
pp. 163-190 ◽  
Author(s):  
P.M.T. Zaal ◽  
J.A. Schroeder ◽  
W.W. Chung
Keyword(s):  
Vertical Motion ◽  
Civil Aviation ◽  
Vehicle Performance ◽  
Motion System ◽  
Motion Simulator ◽  
Motion Condition ◽  
Motion Cueing ◽  
Engine Failure ◽  
Simulator Motion ◽  
Initial Objective

ABSTRACTThis paper adds data to help establish fidelity criteria to accompany the simulator motion system diagnostic test specified by the International Civil Aviation Organisation. Twelve airline transport pilots flew three tasks in the NASA Vertical Motion Simulator under four different motion conditions. The experiment used three different hexapod motion configurations, each with a different trade-off between motion filter gain and break frequency, and one large motion configuration that utilised as much of the simulator's motion space as possible. The motion condition significantly affected (1) pilot motion fidelity ratings, and sink rate and lateral deviation at touchdown for the approach and landing task, (2) pilot motion fidelity ratings, roll deviations, maximum pitch rate, and number of stick shaker activations in the stall task, and (3) heading deviation after an engine failure in the take-off task. Significant differences in pilot-vehicle performance were used to define initial objective motion cueing criteria boundaries. These initial fidelity boundaries show promise but need refinement.

scholarly journals A Design of Nonlinear Scaling and Nonlinear Optimal Motion Cueing Algorithm for Pilot's Station

2021 ◽  
Vol 26 (6) ◽  
pp. 513-520
Author(s):  
Daoyang ZHU ◽  
Jun YAN ◽  
Shaoli DUAN
Keyword(s):  
Motion Simulation ◽  
Motion Platform ◽  
Motion Simulator ◽  
Pitch Direction ◽  
Washout Filter ◽  
Motion Cueing ◽  
Physical Limitations ◽  
Rotational Motions ◽  
Simulator Motion ◽  
High Degree

Motion cueing algorithms (MCA) are often applied in the motion simulators. In this paper, a nonlinear optimal MCA, taking into account translational and rotational motions of a simulator within its physical limitation, is designed for the motion platform aiming to minimize human’s perception error in order to provide a high degree of fidelity. Indeed, the movement sensation center of most MCA is placed at the center of the upper platform, which may cause a certain error. Pilot’s station should be paid full attention to in the MCA. Apart from this, the scaling and limiting module plays an important role in optimizing the motion platform workspace and reducing false cues during motion reproduction. It should be used along within the washout filter to decrease the amplitude of the translational and rotational motion signals uniformly across all frequencies through the MCA. A nonlinear scaling method is designed to accurately duplicate motions with high realistic behavior and use the platform more efficiently without violating its physical limitations. The simulation experiment is verified in the longitudinal/pitch direction for motion simulator. The result implies that the proposed method can not only overcome the problem of the workspace limitations in the simulator motion reproduction and improve the realism of movement sensation, but also reduce the false cues to improve dynamic fidelity during the motion simulation process.

Integrated design of flight simulator motion cueing systems

2005 ◽  
Vol 109 (1091) ◽  
pp. 1-12 ◽  
Author(s):  
R. Hosman ◽  
S. Advani ◽  
N. Haeck
Keyword(s):  
Integrated Design ◽  
Flight Simulator ◽  
Control Loop ◽  
Motion System ◽  
Pilot Model ◽  
Washout Filter ◽  
Motion Cueing ◽  
Simulator Motion ◽  
The Stability ◽  
Control Behaviour

Abstract An advanced design process applicable to the specification of flight simulator cueing systems is presented in this paper. This process is based on the analysis of the pilot-vehicle control loop by using a pilot model incorporating both visual and vestibular feedback, and the aircraft dynamics. After substituting the model for the simulated aircraft, the analysis tools are used to adjust the washout filter parameters with the goal of restoring pilot control behaviour. This process allows the specification of the motion cueing algorithm. Then, based on flight files representative of the operational flight envelope, the required motion system space is determined. The motion-base geometry is established based on practical limitations, as well as criteria for the stability of the platform with respect to singular conditions. With this process the characteristics of the aircraft, the tasks to be simulated, and the missions themselves are taken into account in defining the simulator motion cueing system.

Performance Identification and Compensation of Simulator Motion Cueing Delays

2011 ◽  
Vol 11 (4) ◽  
Author(s):  
Zhou Fang ◽  
Gilles Reymond ◽  
Andras Kemeny
Keyword(s):  
High Performance ◽  
Driving Simulator ◽  
Measurement Procedure ◽  
Phase Delay ◽  
Proportional Integral Derivative ◽  
Transport Delay ◽  
Motion System ◽  
Motion Cueing ◽  
Driving Task ◽  
Simulator Motion

The lag existing between the command and the resulting cockpit motion in a motion-based simulator, commonly referred to as “transport delay”, is actually the sum of a fixed delay and a frequency-dependent phase delay. A measurement procedure for the identification of the overall transfer function of a motion system is first presented, then it is used to design a proportional integral derivative (PID) compensator to reduce the apparent simulator lag in usual driving maneuvers. This procedure is carried out on RENAULT’s ULTIMATE high-performance driving simulator. For the reference driving task considered (slalom driving), this PID corrector is shown to bring a 100–200 ms reduction of the phase delay, which is quite perceivable and preferred by test drivers.

6-DOF Motion System of Amphibious Vehicle Driving Simulator Motion Parameter Design Research

2011 ◽  
Vol 460-461 ◽  
pp. 704-709
Author(s):  
Shu Tao Zheng ◽  
Zheng Mao Ye ◽  
Jun Jin ◽  
Jun Wei Han
Keyword(s):  
Design Research ◽  
Driving Simulator ◽  
Motion Parameter ◽  
Driving Simulators ◽  
Motion System ◽  
Vehicle Acceleration ◽  
Vehicle Driving Simulator ◽  
Simulator Motion ◽  
Result Analysis ◽  
The Relationship

Vehicle driving simulators are widely employed in training and entertainment utilities because of its safe, economic and efficient. Amphibious vehicle driving simulator was used to simulate amphibious vehicle on land and in water. Because of the motion difference between aircraft and amphibious vehicle, it is necessary to design a reasonable 6-DOF motion system according to the flight simulator motion system standard and vehicle motion parameter. FFT of DSP and PSD were used to analysis the relationship between them. Finally according to the result analysis, a set of reasonable 6-DOF motion system motion parameter was given to realize the driving simulator motion cueing used to reproduce vehicle acceleration.

Preparation of a Virtual Proving Ground for Construction Equipment Simulation

1998 ◽  
Author(s):  
Peter Grant ◽  
Jeffrey S. Freeman ◽  
Rob Vail ◽  
Frank Huck
Keyword(s):  
Phase I ◽  
Driving Simulator ◽  
Construction Equipment ◽  
Machine Model ◽  
Data Set ◽  
Wheel Loader ◽  
Time Dynamics ◽  
Motion System ◽  
Acceleration Time Histories ◽  
Simulator Motion

Abstract A multi-phased evaluation of the Iowa Driving Simulator as a virtual proving ground for construction equipment simulation is presented. In Phase I the Iowa Driving Simulator was evaluated in an “open-loop” mode to assess its capability to simulate a typical maneuver common to wheel loader operation, and its viability as a test platform for human subject evaluation of those maneuvers. A typical wheel loader truck loading cycle involves numerous directional shifts. Cycle productivity is increased if these shifts are executed at full engine throttle. Jerk and acceleration levels associated with full throttle shifts, however, can cause both operator discomfort and spillage of loaded material. Electronically controlled transmissions have the potential to both minimize directional shift times and material loss while optimizing operator comfort. This optimization will require an understanding of the factors which affect operator comfort during shifts. A study was therefore devised to determine those aspects of the motion generated by a directional shift which affect operator comfort. The Iowa Driving Simulator motion system was used to present operators with a series of acceleration time histories which are representative of various shift strategies. The operators rated the relative comfort of each strategy during paired comparison tests. Limitations of the simulator motion system prevented definitive results from being drawn; however, results did confirm shift comfort criteria previously established by the machine manufacturer. Success of the Phase I effort was sufficient to warrant a more in-depth study. In Phase II a complete VPG environment for wheel loader operation on the IDS was developed and qualitatively evaluated. This VPG environment included a visual model of a mine pit, developed for Caterpillar, Inc. by engineers at its National Center for Supercomputing Applications office, combined with the immersive motion capability of the Iowa Driving Simulator. A real-time dynamics model of a generic wheel loader along with a menu driven interface to the data set used to simulate a particular wheel loader were developed at Center for Computer Aided Design. This combination of programs allows changes to the design of a loader to be rapidly evaluated within a virtual proving ground environment or off-line at an engineering workstation. The machine model was then combined with an implement/soil interaction model, also developed at Caterpillar’s National Center for Supercomputing Applications office. The resulting machine model can be evaluated either off-line at a workstation or driven in response to operator input within the Iowa Driving Simulator virtual proving ground environment. A comparison of the offline model’s predictions of machine response to swept-sinewave steering input is shown to compare favorably with measured performance of the actual machine.

scholarly journals Flight Simulator’s Energy Consumption Depending on the Conditions of the Air Operation

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 580
Author(s):  
Michał Gołębiewski ◽  
Marta Galant-Gołębiewska ◽  
Remigiusz Jasiński
Keyword(s):  
Energy Consumption ◽  
Natural Environment ◽  
Negative Impact ◽  
Weather Conditions ◽  
Civil Aviation ◽  
Flight Simulator ◽  
Motion Platform ◽  
Simulator Motion ◽  
The Individual ◽  
The Impact

Protection of the natural environment is a key activity driving development in the transport discipline today. The use of simulators to train civil aviation pilots provides an excellent opportunity to maintain the balance between efficiency and limit the negative impact of transport on the environment. Therefore, we decided to determine the impact of selected simulations of air operations on energy consumption. The aim of the research was to determine the energy consumption of the flight simulator depending on the type of flight operation and configuration used. We also decided to compare the obtained result with the energy consumption of an aircraft of a similar class, performing a similar aviation operation and other means of transport. In order to obtain the results, a research plan was proposed consisting of 12 scenarios differing in the simulated aircraft model, weather conditions and the use of the simulator motion platform. In each of the scenarios, energy consumption was measured, taking into account the individual components of the simulator. The research showed that the use of a flight simulator has a much smaller negative impact on the natural environment than flying in a traditional plane. Use of a motion platform indicated a change in energy consumption of approximately 40% (in general, flight simulator configuration can change energy consumption by up to 50%). The deterioration of weather conditions during the simulation caused an increase in energy consumption of 14% when motion was disabled and 18% when motion was enabled. Energy consumption in the initial stages of pilot training can be reduced by 97% by using flight simulators compared to aircraft training.

Enhancing motion cueing using an optimisation technique

2018 ◽  
Vol 122 (1249) ◽  
pp. 487-518 ◽  
Author(s):  
M. Jones
Keyword(s):  
Test Cases ◽  
Motion Platform ◽  
Tuning Method ◽  
Virtual Engineering ◽  
Motion Cueing ◽  
Subjective Opinion ◽  
Simulated Test ◽  
Tuning Process ◽  
Simulator Motion ◽  
Optimisation Technique

ABSTRACTVirtual engineering tools are not currently employed extensively during the certification and commissioning of flight simulator motion systems. Subjective opinion is regarded as sufficient for most applications, as it provides verification that the motion platform does not cause false cueing. However, the results of this practice are systems that may be far from optimal for their specific purpose. This paper presents a new method for tuning motion systems objectively using a novel tuning process and tools which can be applied throughout the simulators life-cycle. The use of the tuning method is shown for a number of simulated test cases.

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