Friction identification and control of ball screw driven system using PLC

2016 ◽  
Author(s):  
Prabha Niranjan ◽  
Shwetha C Shetty ◽  
Chaithra D Byndoor ◽  
K V S S S S Sairam ◽  
Shashikanth Karinka
Keyword(s):  
Ball Screw ◽  
Driven System ◽  
Friction Identification ◽  
And Control

Tracking Error Compensation of XY Table Ball Screw Driven System Using Cascade Fuzzy P+PI

2016 ◽  
Vol 9 (5) ◽  
pp. 324 ◽  
Author(s):  
Zain Retas ◽  
Lokman Abdullah ◽  
Syed Najib Syed Salim ◽  
Zamberi Jamaludin ◽  
Nur Amira Anang
Keyword(s):  
Error Compensation ◽  
Tracking Error ◽  
Ball Screw ◽  
Driven System

Study and Implement on Key Technologies of Ship-Welding Mobile Robot

2010 ◽  
Vol 44-47 ◽  
pp. 321-325
Author(s):  
Liang Hua ◽  
Lin Lin Lv ◽  
Ju Ping Gu ◽  
Yu Jian Qiang
Keyword(s):  
Mobile Robot ◽  
Control Method ◽  
Structure Design ◽  
Seam Tracking ◽  
Precision Positioning ◽  
Positioning Control ◽  
Controlling System ◽  
Welding Torch ◽  
Driven System ◽  
And Control

The key technilogies of ship-welding mobile robot applied to ship-building in plane block production line were researched and realized. The mechanical structure design of the robot was completed. The motion-controlling system of of two-wheel differential driving mobile robot was developed. A novel precision positioning control method of welding torch using ultrasonic motors was putforward. The mechanism and control-driven system of precision positioning system for welding torch were completed. The platform of obstacle avoidance navigation system was designed and the strategies of seam tracking, trajectory and posture adjustment were preliminary studied. The methods and results put forward in the paper could act as the base of deep research on the theories and technologies of ship-welding mobile robot.

Friction Identification Using Evolution Strategies and Robust Control of Positioning Tables

1999 ◽  
Vol 121 (4) ◽  
pp. 619-624 ◽  
Author(s):  
Seon-Woo Lee ◽  
Jong-Hwan Kim
Keyword(s):  
Static Friction ◽  
Velocity Model ◽  
Friction Model ◽  
Evolution Strategies ◽  
Linear Feedback ◽  
Control Input ◽  
Identification Technique ◽  
Friction Identification ◽  
The Stability ◽  
And Control

This paper presents an identification technique using evolution strategies (ES) for an integrated friction model of a positioning table. The friction model is based on Karnopp’s friction-velocity model with the rising static friction and spring-like property. Using the (μ + λ)-ES, the system parameters are identified with the experimental input and output data. The proposed control law consists of a conventional linear feedback control input, a friction compensation term and a sliding control input. The proposed control scheme can guarantee the stability of the overall system, even in the presence of the external disturbances and the modeling error between the real friction and the identified model. Experiments on an positioning table, called X-Y table, demonstrate the effectiveness of the proposed identification and control schemes.

DYNAMICS AND CONTROL OF A TWO-DEGREE-OF-FREEDOM VIBRATION-DRIVEN SYSTEM

2007 ◽  
Vol 40 (14) ◽  
pp. 109-114
Author(s):  
Nikolai N. Bolotnik ◽  
Mikhail Pivovarov ◽  
Igor Zeidis ◽  
Klaus Zimmermann
Keyword(s):  
Degree Of Freedom ◽  
Driven System ◽  
Dynamics And Control ◽  
And Control ◽  
Two Degree Of Freedom

Robust Position Controller Design for Linear Servo Units Used in Noncircular Machining

2004 ◽  
Vol 471-472 ◽  
pp. 755-759
Author(s):  
S.T. Huang ◽  
Jing Feng Zhi ◽  
Hao Bo Cheng ◽  
W. Zuo
Keyword(s):  
Controller Design ◽  
Feedforward Control ◽  
Ball Screw ◽  
Tracking Accuracy ◽  
Response Data ◽  
Noncircular Machining ◽  
Driven System ◽  
Position Controller ◽  
Simple Error ◽  
High Level

This paper presents the design and implementation of a robust motion control structure for linear servo units used in noncircular machining. Compared with ball/screw driven system, the controller of the linear motor driven system must provide a high level of disturbance rejection performance, as the system is more sensitive to force disturbances and parameter variations. Thus, in this paper, a robust feedback controller based on disturbance observer is applied to enhance the stiffness and robustness. A magnitude and phase regulating control scheme (MPRC) is proposed to improve the system tracking accuracy, and a simple error feedforward compensator (EFC) further reduces the feedforward control error that result from inaccurate frequency response data. The effectiveness of the proposed controller is demonstrated by experiments.

Measurement and Control Device of Preloaded Ball Screw Drive

2011 ◽  
Vol 486 ◽  
pp. 73-76
Author(s):  
Xue Feng Ma ◽  
Chao Hao ◽  
Fu Qiang Li
Keyword(s):  
Force Measurement ◽  
Control Device ◽  
Ball Screw ◽  
Automatic Compensation ◽  
Detail Design ◽  
Specific Device ◽  
Ball Screw Drive ◽  
And Control ◽  
Measurement And Control

The deviation often appears in the feeding device of machine because of the screw spindle geometry torsional moment and the wear. The automatic compensation of the changes was proposed by means of a ball screw pretightening device by using adjustable force measurement and control. The detail design and simulation were conducted for the specific device. A case study was presented for the CNC lathe’s application. Testing results have shown that the device can be easily operated with an acceptable precision for positioning.

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