Adaptive Control With Impact Detection Of A Hydraulic Actuator Connected To A Flexible Mechanical Structure
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Adaptive Control With Impact Detection Of A Hydraulic Actuator Connected To A Flexible Mechanical Structure
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Author : Petter Krus
language : en
Publisher:
Release Date : 1995
Adaptive Control With Impact Detection Of A Hydraulic Actuator Connected To A Flexible Mechanical Structure written by Petter Krus and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
Controller Design Of Hydraulic Actuator System Using Self Tuning And Model Reference Adaptive Control
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Author : Sazilah Salleh
language : en
Publisher:
Release Date : 2016
Controller Design Of Hydraulic Actuator System Using Self Tuning And Model Reference Adaptive Control written by Sazilah Salleh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
On Motion Control Of Linear Incremental Hydraulic Actuators
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Author : Martin Hochwallner
language : en
Publisher: Linköping University Electronic Press
Release Date : 2017-10-24
On Motion Control Of Linear Incremental Hydraulic Actuators written by Martin Hochwallner and has been published by Linköping University Electronic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-10-24 with categories.
Linear Incremental Hydraulic Actuators combine one or more short-stroke cylinders, and two or more engaging/disengaging mechanisms into one actuator with long, medium, or even unlimited stroke length. The motion of each single short-stroke actuator concatenated by the engaging/disengaging mechanisms forms the motion of the linear incremental hydraulic actuator. The patterns of how these motions are concatenated form the gaits of a specific linear incremental hydraulic actuator. Linear incremental hydraulic actuators may have more than one gait. In an application, the gaits may be combined to achieve optimal performance at various operating points. The distinguishing characteristic of linear incremental hydraulic actuators is the incremental motion. The term incremental actuator is seen as analogous to the incremental versus absolute position sensor. Incremental actuators realize naturally relative positioning. Incremental motion means also that the behavior does not depend on an absolute position but only on the relative position within a cycle or step. Incremental actuators may realize discrete incremental or continuous incremental motion. Discrete incremental actuators can only approach discrete positions, whereby stepper drives are one prominent example. In contrast, continuous incremental actuators may approach any position. Linear electric motors are one example of continuous incremental actuators. The actuator has no inherent limitation in stroke length, as every step or cycle adds only to the state at the beginning of the step or cycle and does not depend on the absolute position. This led to the alternative working title Hydraulic Infinite Linear Actuator. Linear incremental hydraulic actuator provides long stroke, high force, and linear motion and has the potential to decrease the necessary resource usage,minimize environmental impact, e.g. from potential oil spillage,extend the range of feasible products: longer, stiffer, better, etc. This thesis presents an analysis of the characteristics and properties of linear incremental hydraulic actuators as well as the gaits and possible realizations of some gaits. The gait for continuous, smooth motion with two cylinders is comprehensively studied and a control concept for the tracking problem is proposed. The control concept encapsulates the complexity of the linear incremental hydraulic actuator so that an application does not have to deal with it. One other gait, the ballistic gait, which realizes fast, energy-efficient motion, enabling energy recuperation is studied.
Adaptive Control Of Systems With Actuator Failures
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Author : Gang Tao
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-29
Adaptive Control Of Systems With Actuator Failures written by Gang Tao and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Technology & Engineering categories.
This book shows readers new ways to compensate for disturbances in control systems prolonging the intervals between time-consuming and/or expensive fault diagnosis procedures, keeping them up to date in the increasingly important field of adaptive control.
Development Of A Nonlinear Adaptive Control Scheme For Hydraulic Actuators
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Author :
language : en
Publisher:
Release Date : 1906
Development Of A Nonlinear Adaptive Control Scheme For Hydraulic Actuators written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1906 with categories.
Hydraulic servovalve controlled systems contain many time-varying dynamic characteristics that are difficult to model. Controllers for such systems must either adapt to these changing parameters or be robust enough to handle the parameter variations. In this Thesis the application of an indirect model reference adaptive control (MRAC) scheme to a hydraulic actuator is investigated. A discrete-time plant model is suggested which has dead time and no zeros, eliminating the possibility of unstable pole-zero cancellation. Using this model, a linear indirect adaptive controller is developed and tested first on a simulation model of a hydraulic positioning system The robustness of the parameter adaptation is achieved by using recursive least-squares algorithm in combination with a dead zone in the adaptive law. While the controller shows good performance for a valve with linear flow characteristics, it shows low performance in the presence of flow deadbeat and nonlinear orifice opening. To deal with these two nonconformities, the linear plant model is augmented by adding a static nonagenarian. The resulting nonlinear MRAC shows improved performance as compared to its linear counterpart. Experiments on an existing hydraulic test station confirms the effectiveness and performance improvement of the proposed method.
Development Of A Nonlinear Adaptive Control Scheme For Hydraulic Actuators
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Author : Kamyar Ziaei
language : en
Publisher:
Release Date : 1998
Development Of A Nonlinear Adaptive Control Scheme For Hydraulic Actuators written by Kamyar Ziaei and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
Adaptive Discrete Sliding Mode Control Of An Electro Hydraulic Actuator System
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Author : Rozaimi Ghazali
language : en
Publisher:
Release Date : 2013
Adaptive Discrete Sliding Mode Control Of An Electro Hydraulic Actuator System written by Rozaimi Ghazali and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Actuators categories.
Adaptive Force Control Of Hydraulic Actuator Systems For Dynamic Structural Testing
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Author : Sayed Shehata Karar
language : en
Publisher:
Release Date : 1991
Adaptive Force Control Of Hydraulic Actuator Systems For Dynamic Structural Testing written by Sayed Shehata Karar and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
Adaptive Position And Force Control Of Hydraulic Robots
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Author : Gang Wu
language : en
Publisher:
Release Date : 1997
Adaptive Position And Force Control Of Hydraulic Robots written by Gang Wu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
Lqg Control Of An Hydraulic Actuator With A Flexible Mechanical Load
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Author :
language : en
Publisher:
Release Date : 1991
Lqg Control Of An Hydraulic Actuator With A Flexible Mechanical Load written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.