Design of electric loading system in flight simulator based on PIDNN

2011 ◽  
Author(s):  
Liu Changhua ◽  
Song Hua
Keyword(s):  
Flight Simulator ◽  
Electric Loading ◽  
Loading System

scholarly journals Research on design method of double-loop electric servo loading system with high-frequency band based on H∞ control strategy

2020 ◽  
pp. 002029402096213
Author(s):  
Yang Shui ◽  
Jianli Wei ◽  
Jie Yan
Keyword(s):  
Frequency Band ◽  
Loop System ◽  
Aerodynamic Load ◽  
Double Loop ◽  
Hardware In The Loop ◽  
Load Spectrum ◽  
Electric Loading ◽  
Technical Requirements ◽  
Loading System ◽  
High Dynamic

In the hardware-in-the-loop simulation, the goal of electric loading is to realize the accurate tracking of the torque signal and test the performance of the aircraft actuator system. For some high dynamic aircraft, it is necessary to reduce the influence of the surplus torque to increase the system frequency band. This paper introduces a new electric loading system which adopts a double-loop servo motor as the torque loading mechanism. It applies two loops to track the position of the rudder and the aerodynamic load spectrum respectively. For the purpose of reducing the disturbance between two loops of the scheme, a two-DOF H∞ robust controller is designed, which improves the robustness of the system effectively. The simulation results show that the new system increases the upper limit of 25 Hz frequency band of the traditional single-loop system with PID control to the maximum of 40 Hz. The double-loop system thereby meets the technical requirements of the hardware-in-the-loop simulation experiment for high dynamic aircrafts.

Electric Servo Loading System Applied to Flight Simulator

2013 ◽  
Vol 380-384 ◽  
pp. 572-575
Author(s):  
Liu Hong
Keyword(s):  
Digital Control ◽  
Flight Simulator ◽  
Loading System ◽  
Control Load ◽  
Working Principle ◽  
Simulation Results ◽  
The Ideal

Flight simulator control loading system is an important part of the flight simulator, and it provides operating force people feeling system for Pilots. This paper introduces the working principle of digital control load system, and describes in detail the simulation and application of the electric servo loading system in the flight simulator. After tested the system has reached the ideal simulation results.

Elevator Feel and Centering Unit Simulation Based on SimMechanics

2007 ◽  
Vol 10-12 ◽  
pp. 424-429
Author(s):  
Yu Yang ◽  
D.C. Cong ◽  
Jun Wei Han
Keyword(s):  
Control System ◽  
Flight Control ◽  
Flight Simulator ◽  
Flight Control System ◽  
Control Module ◽  
Simulation Based ◽  
Loading System ◽  
System Module ◽  
Control Column ◽  
Command Signal

The force of control column is very important for the pilot in a flight simulator. So the control loading system in the flight simulator has been concerned since the flight simulator appeared. As the force command signal generated part of control loading system, flight control system module is the most important module for the fidelity of control loading system. This paper described a method to build flight control module. We used SimMechanics in simulink to model and analyze the feel and centering unit, which is the key part of feeling system in the flight control system, and in this paper we described the structure of the control loading system, and the function of the feel and centering unit.

Stability of Velocity-Loop-Based Hydraulic Control Loading System

2012 ◽  
Vol 619 ◽  
pp. 472-475
Author(s):  
Pan Guo Qi ◽  
Li Wei Zhao ◽  
Pei Chao Cong ◽  
Hui Wang
Keyword(s):  
Mathematical Model ◽  
Block Diagram ◽  
System Model ◽  
Flight Simulator ◽  
Stability Conditions ◽  
Hydraulic Control ◽  
Function Block ◽  
Loading System ◽  
The Stability ◽  
The Mathematical Model

A hydraulic Control Loading System (CLS) based on velocity-loop was developed and installed on our flight simulator earlier days, but the CLS cannot keep stable in some conditions. This problem is discussed in this paper. The mathematical model of velocity-loop-based CLS is firstly developed with the method of transfer function block diagram. Then, system’s stability conditions are put forward using Roth criterion based on the system model developed. At last, the experiments proves the stability

Research on Control Algorithm of Electric Loading System

2013 ◽  
Vol 579-580 ◽  
pp. 818-822
Author(s):  
Xiang Zhang ◽  
Guang Lin Wang ◽  
Xu Dong Pan ◽  
Hai Bing Xie
Keyword(s):  
Pid Control ◽  
Control Algorithm ◽  
Simulation Analysis ◽  
Feed Forward ◽  
Complex Control ◽  
Electric Loading ◽  
Loading System ◽  
Disturbance Torque

The disturbance torque which is caused by the interference of the motor position has observably impact on accuracy of the loading system. According to unstable loading channel and disturbance torque, this paper use a complex control algorithm of differential forward PID control and feed-forward compensation. At the end of this paper, the simulation analysis results show that the feed-forward compensation can observably eliminate the influence of the disturbance torque, and improve the accuracy of the loading system.

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