Fabrication and simulation of large-scale MEMS deformable mirror for wave front active control

2010 ◽  
Author(s):  
Po-Yu Lin ◽  
Hsin-Ta Hsieh ◽  
Guo-Dung J. Su
Keyword(s):  
Wave Front ◽  
Active Control ◽  
Large Scale ◽  
Deformable Mirror

scholarly journals Large scale nanolaminate deformable mirror

2006 ◽  
Author(s):  
Alexandros Papavasiliou ◽  
Scot Olivier ◽  
Troy Barbee ◽  
Robin Miles ◽  
Kevin Chang
Keyword(s):  
Large Scale ◽  
Deformable Mirror

Wave-front sensing and deformable-mirror control in strong scintillation

2000 ◽  
Vol 17 (5) ◽  
pp. 911 ◽  
Author(s):  
Michael C. Roggemann ◽  
Alan C. Koivunen
Keyword(s):  
Wave Front ◽  
Deformable Mirror

Active control of a large deformable mirror for future E-ELT

2010 ◽  
Author(s):  
R. Gasmi ◽  
D. Le Bihan ◽  
J. L. Dournaux ◽  
J. C. Sinquin ◽  
P. Jagourel
Keyword(s):  
Active Control ◽  
Deformable Mirror

Iterative Algorithms for Large Scale Wave Front Reconstruction

2001 ◽  
Author(s):  
Luc Gilles ◽  
Curtis R. Vogel ◽  
Brent L. Ellerbroek
Keyword(s):  
Wave Front ◽  
Large Scale ◽  
Iterative Algorithms

scholarly journals Active Control of Contact Force for a Pantograph-Catenary System

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Jiqiang Wang
Keyword(s):  
Active Control ◽  
Contact Force ◽  
High Speed ◽  
Large Scale ◽  
Vibration Suppression ◽  
Numerical Study ◽  
Primary Objective ◽  
Geometric Framework ◽  
High Speed Trains ◽  
Catenary System

The performance of the high speed trains depends critically on the quality of the contact in the pantograph-catenary interaction. Maintaining a constant contact force needs taking special measures and one of the methods is to utilize active control to optimize the contact force. A number of active control methods have been proposed in the past decade. However, the primary objective of these methods has been to reduce the variation of the contact force in the pantograph-catenary system, ignoring the effects of locomotive vibrations on pantograph-catenary dynamics. Motivated by the problems in active control of vibration in large scale structures, the author has developed a geometric framework specifically targeting the remote vibration suppression problem based only on local control action. It is the intention of the paper to demonstrate its potential in the active control of the pantograph-catenary interaction, aiming to minimize the variation of the contact force while simultaneously suppressing the vibration disturbance from the train. A numerical study is provided through the application to a simplified pantograph-catenary model.

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