scholarly journals Implementation of Mooring Automatic Positioning System for Deepwater Semi-Submersible Platform Based on Dual-Stage Actuator

2014 ◽  
Vol 02 (02) ◽  
pp. 67-76
Author(s):  
Tao Sun ◽  
Wenbin Gui ◽  
Zhigang Yu ◽  
Zhimin Gao
Keyword(s):  
Positioning System ◽  
Dual Stage ◽  
Dual Stage Actuator ◽  
Automatic Positioning

Design and control of a rotary dual-stage actuator positioning system

Mechatronics ◽  
2011 ◽  
Vol 21 (6) ◽  
pp. 1003-1012 ◽  
Author(s):  
Jinchuan Zheng ◽  
Aurélio Salton ◽  
Minyue Fu
Keyword(s):  
Positioning System ◽  
Dual Stage ◽  
And Control ◽  
Dual Stage Actuator

High-precision Positioning System using a Low-stiffness Dual Stage Actuator

2013 ◽  
Vol 46 (5) ◽  
pp. 20-27 ◽  
Author(s):  
Shingo Ito ◽  
Juergen Steininger ◽  
Peter I. Chang ◽  
Georg Schitter
Keyword(s):  
High Precision ◽  
Positioning System ◽  
Precision Positioning ◽  
Dual Stage ◽  
Low Stiffness ◽  
Dual Stage Actuator

Design of a Flexure-Based Active Fixture System for Precision Robotic Deburring

2018 ◽  
Author(s):  
Jacob Beck ◽  
Burak Sencer ◽  
Ravi Balasubramanian ◽  
Jordan Meader
Keyword(s):  
High Resolution ◽  
Force Control ◽  
Cutting Forces ◽  
Robotic Manipulators ◽  
Positioning System ◽  
Motion Generation ◽  
Positioning Accuracy ◽  
High Compliance ◽  
Dual Stage ◽  
Fixture System

This paper presents on the design, prototyping and testing of a flexure-based active workpiece fixture system for precision robotic deburring. Current industrial robotic manipulators suffer from poor positioning accuracy, which makes precision tasks such as deburring, polishing and grinding challenging. Together, the robotic manipulator and the proposed active work fixture will create a dual-stage positioning system for precision tasks where position/force control is crucial. The main application is robotic deburring, which demands positioning accuracy and high compliance over large cutting forces. This first prototype active fixture system is designed as a planar motion table that is supported by parallel flexures, driven by voice-coil actuators, and uses high-resolution laser displacement pickups facilitate accurate motion generation with great backdrivability for force control. The theory behind the proposed design is shown, and a prototype is then used to validate performance. Overall the prototype flexure stage achieves a total stroke of 1 mm and a bandwidth of 21 Hz.

Single vs. Dual Stage Actuators: Why and When

2002 ◽  
Author(s):  
Fu-Ying Huang ◽  
Tetsuo Semba ◽  
Matthew White
Keyword(s):  
System Dynamics ◽  
Single Stage ◽  
Actuator Dynamics ◽  
Dual Stage ◽  
Dual Stage Actuator

Higher TPI HDD requires lower disturbance and higher error rejection capability. One of the limitations to achieve high error rejection capability is the dynamics of the actuator. Dual stage actuator (DSA) has been considered to replace single stage actuator (SSA) someday because of system dynamics difference and more freedom in servo design that may avoid the constraint of single stage actuator dynamics on servo. SSA and DSA were compared based on their dynamics, servo designs, and TMR benefits. The extendibility and limitations of both systems were studied. The criteria on when DSA would be implemented are also discussed.

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