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.

Modal Control of an Electrohydrostatic Flight Simulator Motion System

2009 ◽  
Author(s):  
Andrew R. Plummer ◽  
Paulo Serena Guinzio
Keyword(s):  
Flight Simulator ◽  
Modal Control ◽  
Control Approach ◽  
Motion System ◽  
System A ◽  
Modes Of Vibration ◽  
Simulation Results ◽  
Simulator Motion ◽  
Current Operating ◽  
Current Operating Point

Valve-controlled electro-hydraulic actuators in a Stewart platform configuration have become established as a good way of meeting the performance required for flight simulator motion systems. However, valve-controlled actuators are very inefficient, and thus an electrohydrostatic motion system, controlled using servomotor driven pumps, has been developed by Thales, and is now in production. This paper presents a simulation study of a multi-axis controller which can improve the dynamic response of the new motion system. A modal control approach is used — i.e. the modes of vibration of the system are controlled individually. These modes are dependent on the inertial properties of the platform and the compliance of the actuators. The modes change as the motion system moves throughout its workspace, and so the controller has to adapt to the current operating point. Simulation results are presented based on a partially validated model of the motion system.

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.

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.

The Design and Research of the Flight Simulator Motion System and Visual System

2012 ◽  
Vol 442 ◽  
pp. 300-304
Author(s):  
Chun Guang Wang ◽  
Shuai Yue
Keyword(s):  
Visual System ◽  
System Integration ◽  
Integration Method ◽  
Test System ◽  
Flight Simulator ◽  
Automatic Test ◽  
Automatic Test System ◽  
Motion System ◽  
Software And Hardware ◽  
Simulator Motion

Based on the motion system and visual system design of flight simulator, the software and hardware design in motion system and visual system of flight simulator is regared as key problem. The fidelity automatic test system is discussed. The aim is to explore a complex system integration method. The fidelity automatic test system is used to detect the fidelity of motion system and visual system. The results show that the design of motion and visual system is reasonable and the performance can meet demand of fidelity.

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