scholarly journals Influence of Satellite Motion Control System Parameters on Performance of Space Debris Capturing

Aerospace ◽  
2020 ◽  
Vol 7 (11) ◽  
pp. 160
Author(s):  
Mahdi Akhloumadi ◽  
Danil Ivanov
Keyword(s):  
Control System ◽  
Motion Control ◽  
Control Algorithm ◽  
Space Debris ◽  
Equations Of Motion ◽  
Center Of Mass ◽  
Attitude Motion ◽  
System Parameters ◽  
Thrust Vector ◽  
Rendezvous And Docking

Relative motion control problem for capturing the tumbling space debris object is considered. Onboard thrusters and reaction wheels are used as actuators. The nonlinear coupled relative translational and rotational equations of motion are derived. The SDRE-based control algorithm is applied to the problem. It is taken into account that the thrust vector has misalignment with satellite center of mass, and reaction wheels saturation affects the ability of the satellite to perform the docking maneuver to space debris. The acceptable range of a set of control system parameters for successful rendezvous and docking is studied using numerical simulations taking into account thruster discreteness, actuators constrains, and attitude motion of the tumbling space debris.

scholarly journals Heading Control System Design for a Micro-USV Based on an Adaptive Expert S-PID Algorithm

2018 ◽  
Vol 25 (2) ◽  
pp. 6-13 ◽  
Author(s):  
Runlong Miao ◽  
Zaopeng Dong ◽  
Lei Wan ◽  
Jiangfeng Zeng
Keyword(s):  
Control System ◽  
System Design ◽  
Motion Control ◽  
Pid Control ◽  
Control Algorithm ◽  
Control System Design ◽  
Motion Control System ◽  
Expert Control ◽  
Pid Algorithm ◽  
Heading Control

Abstract The process of heading control system design for a kind of micro-unmanned surface vessel (micro-USV) is addressed in this paper and a novel adaptive expert S-PID algorithm is proposed. First, a motion control system for the micro-USV is designed based on STM32-ARM and the PC monitoring system is developed based on Labwindows/CVI. Second, by combining the expert control technology, S plane and PID control algorithms, an adaptive expert S-PID control algorithm is proposed for heading control of the micro-USV. Third, based on SL micro-USV developed in this paper, a large number of pool experiments and lake experiments are carried out, to verify the effectiveness and reliability of the motion control system designed and the heading control algorithm proposed. A great amount of comparative experiment results shows the superiority of the proposed adaptive expert S-PID algorithm in terms of heading control of the SL micro-USV.

The Research on the Application of Intelligent Robots in Small Storage and Logistics Based on Improved PID Control Algorithm

2012 ◽  
Vol 220-223 ◽  
pp. 1230-1235
Author(s):  
Ke Man Hu ◽  
Hai Yan Hu
Keyword(s):  
Control System ◽  
Motion Control ◽  
Pid Control ◽  
Control Algorithm ◽  
Control Parameter ◽  
Adjustment Process ◽  
Control Parameters ◽  
Motion Control System ◽  
Intelligent Robots ◽  
Scalar Part

Studying on PID control algorithm and through the analysis of the control parameter of scalar part, integration part and derivation part, the author investigates systematically on the motion control system of the intelligent robots in small storage and logistics, and presents an improved PID control algorithm. The improved PID control algorithm not only maintains the merits of the original one, but also simplifies the multifarious adjustment process of the control parameters of scalar part, integration part and derivation part. The improved algorithm turns out to be effective after the simulation and verification by the MATLAB and can be applied and promoted to other practical controls field.

The Track-Controlling System for Mobile Greenhouse Robots

2013 ◽  
Vol 387 ◽  
pp. 258-261
Author(s):  
Lei Huang ◽  
Deng Xiang Yang ◽  
Qun Feng Zhu
Keyword(s):  
Control System ◽  
Motion Control ◽  
Control Algorithm ◽  
Control Parameters ◽  
Motion Control System ◽  
Stability Constraint ◽  
Controlling System ◽  
Photoelectric Encoder ◽  
The Impact

This paper targets on the study of the motion control system for greenhouse robots, and researches into the realization of the linear track control algorithm on robots motion control, demonstrating the feasibility and stability constraint of the algorithms. The author also analyzes the impact of different control parameters on the moving tracks through simulation, then applies the algorithm to the actual robot-controlling, and has designed an effective controlling system for mobile greenhouse robots based on gyroscopes and photoelectric encoder.

Motion Control System and Control Algorithm of 3-Axes Platform Based on Controller Area Network

2014 ◽  
Vol 532 ◽  
pp. 196-199
Author(s):  
Cheng Long Zhou ◽  
Xing Song Wang ◽  
Yu Liang Mao
Keyword(s):  
Control System ◽  
Motion Control ◽  
Control Algorithm ◽  
Controller Area Network ◽  
Numerical Control ◽  
Area Network ◽  
Motion Controller ◽  
Motion Control System ◽  
And Control ◽  
Control Machine

3-axes motion is broadly used in industry numerical control machine. Many motion controller we use are usually limited by the number of interface it consist. But the kind of motion controller based on CAN (Controller Area Network ) can solve this problem properly. We can add a controller of one axe conveniently. I use a Advantech CAN motion controller to build the motion control system.

scholarly journals Attitude Motion of Cylindrical Space Debris during Its Removal by Ion Beam

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Vladimir S. Aslanov ◽  
Alexander S. Ledkov
Keyword(s):  
Space Debris ◽  
Ion Beam ◽  
Center Of Mass ◽  
Phase Portraits ◽  
Gravity Gradient ◽  
Attitude Motion ◽  
Cylindrical Shape ◽  
Contactless Method ◽  
Large Space ◽  
Ion Flow

The paper is devoted to the problem of space debris mitigation. Contactless method of the space debris deorbiting is considered. It is assumed that ion thrusters on the active spacecraft create the ion flow, which blows the debris and slows it down. The objectives of this work are the development of mathematical models and the research of space debris motion under the action of the ion flow. It is supposed that the space debris is a rigid body of a cylindrical shape. Calculation of ion beam force and torque was performed for a self-similar model of plasma plume expansion using the hypothesis of ion fully diffused reflection from a surface. A mathematical model describing plane motions of the cylindrical space debris under the influence of gravity gradient torque and the ion flux was constructed. It was shown that motion of the space debris around its center of mass has a significant effect on its removal time. Phase portraits, describing the motion of the space debris relative to its center of mass, were constructed. Comparison of the descent times in different motion modes was carried out. The results can be used to create new effective systems of large space debris removal.

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