scholarly journals Mechanical design and control system development of novel 2 degree-of-freedom ankle and balance rehabilitation robotic system

2015 ◽  
Author(s):  
Amir Bahador Farjadian Bejestan
Keyword(s):  
Control System ◽  
Mechanical Design ◽  
System Development ◽  
Robotic System ◽  
Degree Of Freedom ◽  
Balance Rehabilitation ◽  
And Control ◽  
Rehabilitation Robotic

scholarly journals Development of an Advanced Solar Tracking Energy System

2021 ◽  
pp. 77-82
Author(s):  
Samuel Davies ◽  
Sivagunalan Sivanathan ◽  
Ewen Constant ◽  
Kary Thanapalan
Keyword(s):  
Control System ◽  
System Performance ◽  
Mechanical Design ◽  
System Development ◽  
Tracking System ◽  
Energy System ◽  
Design And Implementation ◽  
Solar Tracking ◽  
Advanced Control ◽  
Stability Issues

AbstractThis paper describes the design of an advanced solar tracking system development that can be deployed for a range of applications. The work focused on the design and implementation of an advanced solar tracking system that follow the trajectory of the sun’s path to maximise the power capacity generated by the solar panel. The design concept focussed on reliability, cost effectiveness, and scalability. System performance is of course a key issue and is at the heart of influencing the hardware, software and mechanical design. The result ensured a better system performance achieved. Stability issues were also addressed, in relation to optimisation and reliability. The paper details the physical tracker device developed as a prototype, as well as the proposed advanced control system for optimising the tracking.

Modeling, analysis and control system development for the Italian hydrogen house

2009 ◽  
Vol 34 (4) ◽  
pp. 1638-1646 ◽  
Author(s):  
E.M. Stewart ◽  
A.E. Lutz ◽  
S. Schoenung ◽  
M. Chiesa ◽  
J.O. Keller ◽  
...  
Keyword(s):  
Control System ◽  
System Development ◽  
Modeling Analysis ◽  
And Control

Coherence Analysis and Control of Multi-Exciter Vibration Test System

2013 ◽  
Vol 401-403 ◽  
pp. 1005-1009
Author(s):  
Zheng Tao Yan ◽  
Shao Chun Ding
Keyword(s):  
Control System ◽  
System Development ◽  
Response Spectrum ◽  
Test System ◽  
Partial Coherence ◽  
Vibration Test ◽  
Test Field ◽  
And Control ◽  
Drive Signals ◽  
Test Control

Multi-exciter vibration test control system is the core of the multiple shaker vibration test, and multi-exciter vibration test control technology has become the hot point of vibration test field. Based on coherence principles, the coherence of two exciters control system was tested, the introduction of noise signal reduces the control coherence between the response spectrum and partial coherence between response and the corresponding drive signal. By means of increasing the coherence between drive signals, the control coherence between the response spectrum can be raised and control performance of system can be Improved. The above means could provide technical support for multi-exciter vibration test system development.

Software System Development of Measurement and Control System for a Nonlinear Absorber by Virtual Instrument

2011 ◽  
Vol 188 ◽  
pp. 236-240
Author(s):  
Cong Ling Zhu ◽  
Wei Zhu Jin ◽  
D.R. Ci ◽  
Zhi Gang Ding ◽  
S.T. Wu
Keyword(s):  
Control System ◽  
Virtual Instrument ◽  
System Development ◽  
System Structure ◽  
Software System ◽  
Measurement And Control System ◽  
Nonlinear Absorber ◽  
New Development ◽  
And Control ◽  
Measurement And Control

Measurement and control system is the key equipment for testing and analyzing of the dynamic characteristics for a nonlinear absorber.It is the necessary means of accomplishing to design the rationalization of the nonlinear absorber. This article has conducted the detailed research in the new development of absorber test equipment to the desing of system structure, The constituent of software system, and The process design, and The development of the computer program based on virtual techniques. Debugging and running this software system have shown that the precision and reliability of it have been proved.

scholarly journals Three-Dimensional Modeling and Control of a Tethered UAV-Buoy System

2021 ◽  
Author(s):  
Ahmad Kourani ◽  
Naseem Daher
Keyword(s):  
Control System ◽  
Three Dimensional ◽  
Vertical Motion ◽  
Robotic System ◽  
Three Dimensions ◽  
Spherical Coordinate ◽  
Nonlinear Dynamical ◽  
Modeling And Control ◽  
Three Dimensional Modeling ◽  
And Control

Abstract This work presents the nonlinear dynamical model and motion controller of a system consisting of an unmanned aerial vehicle (UAV) that is tethered to a floating buoy in the three-dimensional (3D) space. Detailed models of the UAV, buoy, and the coupled tethered system dynamics are presented in a marine environment that includes surface-water currents and oscillating gravity waves, in addition to wind gusts. This work extends the previously modeled planar (vertical) motion of this novel robotic system to allow its free motion in all three dimensions. Furthermore, a Directional Surge Velocity Control System (DSVCS) is hereby proposed to allow both the free movement of the UAV around the buoy when the cable is slack, and the manipulation of the buoy’s surge velocity when the cable is taut. Using a spherical coordinate system centered at the buoy, the control system commands the UAV to apply forces on the buoy at specific azimuth and elevation angles via the tether, which yields a more appropriate realization of the control problem as compared to the Cartesian coordinates where the traditional x- , y- , and z -coordinates do not intuitively describe the tether’s tension and orientation. The proposed robotic system and controller offer a new method of interaction and collaboration between UAVs and marine systems from a locomotion perspective. The system is validated in a virtual high-fidelity simulation environment, which was specifically developed for this purpose, while considering various settings and wave scenarios.

Highlights of two and one-half years of simulation efforts for deep submergence vehicles

SIMULATION ◽  
1967 ◽  
Vol 8 (5) ◽  
pp. 283-293
Author(s):  
Tom F. Noble
Keyword(s):  
Computer Simulation ◽  
Control System ◽  
System Design ◽  
Block Diagram ◽  
The Body ◽  
Degree Of Freedom ◽  
Control Input ◽  
Design Work ◽  
Input Devices ◽  
And Control

This paper describes the highlights of two and one-half years of computer simulation effort on the deep submer gence vehicles Trieste II (Trieste), NR-1, and Deep Sub mergence Rescue Vehicle (DSRV). The work, which is still in progress, is being performed by Sperry Gyroscope Com pany under Navy and company-funded programs. Introductory material of the paper presents the simula tion program objectives, outlines the simulation facilities, and gives an overall simulation block diagram. The com puter simulations are being used in control-system, hull, and force-effector design efforts for the development of operational doctrine, as a tool for human engineering as sessment of displays, control input devices, and console layouts, and as a pilot training aid. Basic computation equipment consists of a hybridiza tion between an Electronic Associates 231-R analog com puter and an Ambilog Model 200 digital computer. Major facilities used to supplement these computers are a two- degree-of-freedom cab containing console mockup, pilot's control station, and an electronic flying-spot-scanner tele vision display generator. Major elements characterized in the simulations are six- degree-of-freedom boat dynamics; coordinate transforma tions for television display cues and real-world television pictures; various effectors, actuators, and sensors; and control computer equations. The body of the paper gives details on the use of the computer simulation in deep submergence craft design work. The design stages are broken down as: statement of design criteria, analysis of system parts, analysis of com plete system, synthesis of system design, fabrication of system hardware, test and evaluation, and improvement of design. Unique hull, effector, actuator, and control-system design problems encountered during the two-and-one- half-year simulation study are outlined.. This paper on simulation is concluded with a summary which indicates the need for highly integrated displays, control input devices, and control computers for deep sea craft.

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