scholarly journals Integrating topology optimization in precision motion system design for optimal closed-loop control performance

Mechatronics ◽  
2017 ◽  
Vol 47 ◽  
pp. 1-13 ◽  
Author(s):  
Gijs van der Veen ◽  
Matthijs Langelaar ◽  
Stan van der Meulen ◽  
Dick Laro ◽  
Wouter Aangenent ◽  
...  
Keyword(s):  
Topology Optimization ◽  
System Design ◽  
Closed Loop ◽  
Closed Loop Control ◽  
Control Performance ◽  
Loop Control ◽  
Motion System ◽  
Precision Motion

Characterization and Attenuation of Sandwiched Deadband Problem Using Describing Function Analysis and Application to Electrohydraulic Systems Controlled by Closed-Center Valves

2009 ◽  
Vol 131 (3) ◽  
Author(s):  
Song Liu ◽  
Bin Yao
Keyword(s):  
Closed Loop ◽  
Function Analysis ◽  
Closed Loop Control ◽  
Control Performance ◽  
Nonlinear Feedback ◽  
Describing Function ◽  
Loop Control ◽  
Actuator Dynamics ◽  
And Performance ◽  
The Stability

Unlike input deadband, the sandwiched deadband between actuator and plant dynamics is very difficult to be explicitly compensated for due to the proceeding actuator dynamics whose effect may not be negligible. The paper presents a practical way to overcome the design conservativeness of existing methods in dealing with sandwiched deadband. Specifically, a describing function based nonlinear analysis method is proposed to characterize the effect of the sandwiched deadband on the stability and performance of the overall closed-loop system. The analysis results can be used to determine the highest closed-loop bandwidth that can be achieved without inducing residual limit cycles and instability. Optimal controller parameters can then be found to maximize the achievable closed-loop control performance. The technique is applied to an electrohydraulic system controlled by closed-center valves and a nonlinear feedback controller. Simulation results showed severe oscillations as the feedback control gains are increased to the predicted threshold values. Comparative experimental results also showed the effectiveness of the proposed method in reducing the conservativeness of traditional design and the improved closed-loop control performance in implementation.

System Design and Study on Bionic Eye of Spherical Parallel Mechanism Based on Attitude Closed-loop Control

ROBOT ◽  
2011 ◽  
Vol 33 (3) ◽  
pp. 354-359 ◽  
Author(s):  
Chao LI ◽  
Shaorong XIE ◽  
Hengyu LI ◽  
Jinsong MIAO ◽  
Yuanyu XU ◽  
...  
Keyword(s):  
System Design ◽  
Parallel Mechanism ◽  
Closed Loop ◽  
Closed Loop Control ◽  
Loop Control ◽  
Bionic Eye ◽  
Spherical Parallel Mechanism

Automated Optimal Closed Loop Control System Design

2000 ◽  
Vol 33 (17) ◽  
pp. 753-758
Author(s):  
Mads B. Larsen ◽  
Torben F.H. Kristensen ◽  
Hans Holm
Keyword(s):  
Control System ◽  
System Design ◽  
Closed Loop ◽  
Control System Design ◽  
Closed Loop Control ◽  
Loop Control ◽  
Closed Loop Control System ◽  
Loop Control System

scholarly journals System Design Verification for Closed Loop Control of Oxygenation With Concentrator Integration

2016 ◽  
Vol 181 (5S) ◽  
pp. 177-183 ◽  
Author(s):  
Matthew M. Gangidine ◽  
Thomas C. Blakeman ◽  
Richard D. Branson ◽  
Jay A. Johannigman
Keyword(s):  
System Design ◽  
Closed Loop ◽  
Closed Loop Control ◽  
Design Verification ◽  
Loop Control

Control System Design Based on CANopen Network for Multi-Legged Robot with Hand-Fused Foot

2010 ◽  
Vol 42 ◽  
pp. 307-312 ◽  
Author(s):  
Yu Xiao Zhang ◽  
Xian Qun Zeng ◽  
Xin Jie Wang
Keyword(s):  
Communication Network ◽  
Control System ◽  
System Design ◽  
Motion Control ◽  
Closed Loop ◽  
Reliability And Validity ◽  
Control System Design ◽  
Closed Loop Control ◽  
Legged Robot ◽  
Loop Control

In this paper, a distributed motion control system is designed and achieved for the modular multi-legged robot with hand-fused foot based on CANopen network. A communication network is built among modules and joints through CANopen network. Controllers and encoders are used to achieve closed-loop control for each joint. The system has completed real-time multi-jointed linkage. Moreover, experimental results have proved the reliability and validity of this control system.

scholarly journals Closed-Loop Control Performance of the Hypoglycemia-Hyperglycemia Minimizer (HHM) System in a Feasibility Study

2014 ◽  
Vol 8 (1) ◽  
pp. 35-42 ◽  
Author(s):  
Daniel A. Finan ◽  
Thomas W. McCann ◽  
Linda Mackowiak ◽  
Eyal Dassau ◽  
Stephen D. Patek ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Closed Loop ◽  
Closed Loop Control ◽  
Control Performance ◽  
Loop Control
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