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Modeling Analysis And Control Of Hydraulic Actuator For Forging
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Book Synopsis Modeling, Analysis and Control of Hydraulic Actuator for Forging by : Xinjiang Lu
Download or read book Modeling, Analysis and Control of Hydraulic Actuator for Forging written by Xinjiang Lu and published by Springer. This book was released on 2017-12-30 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes load modeling approaches for complex work pieces and batch forgings, and demonstrates analytical modeling and data-driven modeling approaches for known and unknown complex forging processes. It overcomes the current shortcomings of modeling, analysis and control approaches, presenting contributions in three major areas: In the first, several novel modeling approaches are proposed: a process/shape-decomposition modeling method to help estimate the deformation force; an online probabilistic learning machine for the modeling of batch forging processes; and several data-driven identification and modeling approaches for unknown forging processes under different work conditions. The second area develops model-based dynamic analysis methods to derive the conditions of stability and creep. Lastly, several novel intelligent control methods are proposed for complex forging processes. One of the most serious problems in forging forming involves the inaccurate forging conditions, velocity and position offered by the hydraulic actuator due to the complexity of both the deformation process of the metal work piece and the motion process of the hydraulic actuator. The book summarizes the current weaknesses of modeling, analysis and control approaches. are summarized as follows: a) With the current modeling approaches it is difficult to model complex forging processes with unknown parameters, as they only model the dynamics in local working areas but do not effectively model unknown nonlinear systems across multiple working areas; further, they do not take the batch forging process into account, let alone its distribution modeling. b) All previous dynamic analysis studies simplify the forging system to having a single-frequency pressure fluctuation and neglect the influences of non-linear load force. Further, they fail to take the flow equation in both valves and cylinders into account. c) Conventional control approaches only consider the linear deformation force and pay no attention to sudden changes and the motion synchronization for the multi-cylinder system, making them less effective for complex, nonlinear time-varying forging processes subject to sudden changes.
Book Synopsis Hydraulic Control Design and Modeling Techniques by : A. L. Helinski
Download or read book Hydraulic Control Design and Modeling Techniques written by A. L. Helinski and published by . This book was released on 1989 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report details the analysis of a hydraulic actuator system. The analysis consists of designing control compensation by means of deriving a frequency response from a non-linear mathematical model and using classical control theory. This hydraulic actuator system will be used on the Turret Motion Base Simulator (TMBS) which is a unique six degree of freedom simulator being developed. A considerable effort is being made to develop analytical models of laboratory simulators so that a complete assessment can be made before testing is conducted. Analytical studies may point to various problems with the system and control design considerations may be made early in the development stage. The results of selected command signals representing terrain profiles can be simulated with the analytical model before being applied to the actual system. As the level of complexity in laboratory testing is increased the more important becomes analytical studies. (JES).
Book Synopsis Hydraulic Actuator Force Control by : Masoumeh Esfandiari
Download or read book Hydraulic Actuator Force Control written by Masoumeh Esfandiari and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling and Performance of a Hydraulic Actuator System by : Basil Jacob Joseph
Download or read book Modeling and Performance of a Hydraulic Actuator System written by Basil Jacob Joseph and published by . This book was released on 1995 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Martin Hochwallner Publisher :Linköping University Electronic Press ISBN 13 :9176854256 Total Pages :91 pages Book Rating :4.1/5 (768 download)
Book Synopsis On Motion Control of Linear Incremental Hydraulic Actuators by : Martin Hochwallner
Download or read book On Motion Control of Linear Incremental Hydraulic Actuators written by Martin Hochwallner and published by Linköping University Electronic Press. This book was released on 2017-10-24 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Modeling and Control of Vertical Liner Positioning Hydraulic Actuator by : Muhairi Jamil
Download or read book Modeling and Control of Vertical Liner Positioning Hydraulic Actuator written by Muhairi Jamil and published by . This book was released on 2013 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydraulic Forging and the Plastic Deformation of Steel and Its Heat Treatment by : Clifford Oakes Bower
Download or read book Hydraulic Forging and the Plastic Deformation of Steel and Its Heat Treatment written by Clifford Oakes Bower and published by . This book was released on 1921 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mechanical Science and Engineering III by : Yan Dong Wang
Download or read book Mechanical Science and Engineering III written by Yan Dong Wang and published by Trans Tech Publications Ltd. This book was released on 2013-06-27 with total page 1078 pages. Available in PDF, EPUB and Kindle. Book excerpt: The collection of 189 peer reviewed paper communicates the latest progress and research results, including new theory, technology, methods and equipment in mechanical science and engineering. The major topics covered include: Mechanism Theory & Application, Mechanical Dynamics, Manufacturing System and Automation, Micro and Nano Manufacturing, and others related areas in mechanical science and engineering.
Book Synopsis Modeling, Analysis and Control Design for an Electrofueldraulic Pulse Duration Control Servo-actuator by : Shek Michael Cheung
Download or read book Modeling, Analysis and Control Design for an Electrofueldraulic Pulse Duration Control Servo-actuator written by Shek Michael Cheung and published by . This book was released on 1991 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydraulic Control Systems--design and Analysis of Their Dynamics by : Peter Dransfield
Download or read book Hydraulic Control Systems--design and Analysis of Their Dynamics written by Peter Dransfield and published by Springer. This book was released on 1981 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces, explains, demonstrates, & utilizes the use of power bond graphs for hydraulic control systems as an approach to the development of dynamic models.
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1972 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis On Modeling, Analysis and Nonlinear Control of Hydraulic Systems by : Marius Alexander Köster
Download or read book On Modeling, Analysis and Nonlinear Control of Hydraulic Systems written by Marius Alexander Köster and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design and Modeling of a New Electro Hydraulic Actuator by : Vladimir Pastrakuljic
Download or read book Design and Modeling of a New Electro Hydraulic Actuator written by Vladimir Pastrakuljic and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis addresses the issues of design and mathematical model identification of an advanced hydraulic system referred to as Electro Hydraulic Actuator (EHA). In the design part, insights into system design methodology are presented and used for the EHA prototype manufacturing. To get better knowledge of the system behavior, extensive open loop tests were performed. Test results are presented in the time and frequency domain, and it was concluded that system behavior is nonlinear. In the modeling part, a nonlinear mathematical model of the EHA is derived. Some of the unknown model parameters had to be identified experimentally by optimization. The last step in the system mathematical modeling was open and closed loop model validation using the experimental data. Proposed nonlinear mathematical model gives good correspondence with experimental data and can be used for system studying or controller design. Performed test show that the EHA system has high positioning accuracy (0.01mm), fairly high bandwidth (23 Hz with 20kg inertial load) and is easy to control. It shows significant benefits when compared to conventional hydraulic systems in the areas of control, efficiency and physical dimensions.
Book Synopsis Electro-Hydraulic Actuation Systems by : J. Jaidev Vyas
Download or read book Electro-Hydraulic Actuation Systems written by J. Jaidev Vyas and published by Springer. This book was released on 2018-09-01 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book serves as a unique integrated platform, which not only describes the design methodology of electro-hydraulic actuation systems but also provides insights into the design of the servo valve, which is the most important component in the system. It presents a step-by-step design process, comparative tables, illustrative figures, and detailed explanations. The book focuses on the design and testing of electro-hydraulic actuation systems, which are increasingly being used in motion control applications, particularly in those where precision actuation at high operational rates is of prime importance. It describes in detail the design philosophy of such high-performance systems, presenting a system used as a physical test setup together with experimental results to corroborate the calculations. Of particular interest are the electro-hydraulic servo valves that form the heart of these actuations. These valves are complex and not much data is available in open literature due to OEM propriety issues. In this context, the book discusses the elaborate mathematical models that have been derived and an approach to validate the mathematical models with test results. Presenting the complex methodology in simple language, it will prove to be a valuable resource for students, researchers, and professional engineers alike.
Book Synopsis Modeling and Controller Design of an Industrial Hydraulic Actuator Using System Identification and Estimation Approach by : Siti Hasmira Mhd. Hanafiyah
Download or read book Modeling and Controller Design of an Industrial Hydraulic Actuator Using System Identification and Estimation Approach written by Siti Hasmira Mhd. Hanafiyah and published by . This book was released on 2010 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design and Modeling of a New Electro Hydraulic Actuator by :
Download or read book Design and Modeling of a New Electro Hydraulic Actuator written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydraulic Modelling: An Introduction by : Pavel Novak
Download or read book Hydraulic Modelling: An Introduction written by Pavel Novak and published by CRC Press. This book was released on 2018-10-24 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modelling forms a vital part of all engineering design, yet many hydraulic engineers are not fully aware of the assumptions they make. These assumptions can have important consequences when choosing the best model to inform design decisions. Considering the advantages and limitations of both physical and mathematical methods, this book will help you identify the most appropriate form of analysis for the hydraulic engineering application in question. All models require the knowledge of their background, good data and careful interpretation and so this book also provides guidance on the range of accuracy to be expected of the model simulations and how they should be related to the prototype. Applications to models include: open channel systems closed conduit flows storm drainage systems estuaries coastal and nearshore structures hydraulic structures. This an invaluable guide for students and professionals.
