Download or read book Miniature Electro hydraulic Actuator System written by Jen-Kou Chou and published by . This book was released on 1983 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 63 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.

Download or read book Design and Verification of An Open Circuit Electro Hydraulic Actuator System with An Integrated Electro Hydraulic Unit written by Shaoyang Qu and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Dynamics and Stability of an Electro hydraulic Actuator System written by Craig Andrew Hennings and published by . This book was released on 1994 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adaptive Discrete Sliding Mode Control of an Electro hydraulic Actuator System written by Rozaimi Ghazali and published by . This book was released on 2013 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nonlinear Control Techniques for Electro Hydraulic Actuators in Robotics Engineering written by Qing Guo and published by CRC Press. This book was released on 2017-08-14 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonlinear Control Techniques for Electro-Hydraulic Actuators in Robotics Engineering meets the needs of those working in advanced electro-hydraulic controls for modern mechatronic and robotic systems. The non-linear EHS control methods covered are proving to be more effective than traditional controllers, such as PIDs. The control strategies given address parametric uncertainty, unknown external load disturbance, single-rod actuator characteristics, and control saturation. Theoretical and experimental validations are explained, and examples provided. Based on the authors' cutting-edge research, this work is an important resource for engineers, researchers, and students working in EHS.

Download or read book Modeling and Controller Design for an Industrial Electro Hydraulic Actuator System written by Mukhtar Abdulsalam Irhouma and published by . This book was released on 2010 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Emerging Actuator Technologies written by José L. Pons and published by John Wiley & Sons. This book was released on 2005-09-27 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Actuators are devices that convert electrical energy into mechanical work, traditionally used in electrical, pneumatic and hydraulic systems. As the demand for actuator technologies grows in biomedical, prosthetic and orthotic applications, there is an increasing need for complex and sophisticated products that perform efficiently also when scaled to micro and nano domains. Providing a comprehensive overview of actuators for novel applications, this excellent book: * Presents a mechatronic approach to the design, control and integration of a range of technologies covering piezoelectric actuators, shape memory actuators, electro-active polymers, magnetostrictive actuators and electro- and magnetorheological actuators. * Examines the characteristics and performance of emerging actuators upon scaling to micro and nano domains. * Assesses the relative merits of each actuator technology and outlines prospective application fields. Offering a detailed analysis on current advances in the field, this publication will appeal to practising electrical and electronics engineers developing novel actuator systems. Mechanical and automation engineers, computer scientists and researchers will also find this a useful resource.

Download or read book INDEPENDENT METERING SYSTEM WITH ELECTRO HYDRAULIC CONTROL written by Min Cheng and published by Springer Nature. This book was released on 2024 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book shows an independent metering electro-hydraulic control system involving its flexible hardware layouts, complex software control, representative products and applications. The book includes one chapter introducing the background and motivation of the independent metering electro-hydraulic control system. It also includes one chapter to summarize various hardware layouts involving the utilized hydraulic components and circuits, as well as analyze their advantages and disadvantages. It emphatically consists of four chapters demonstrating the detailed multivariable control strategies from three levels: load, valve and pump, together with fault-tolerant control under the fault condition. It includes a last chapter, in which products of independent metering control valve and their applications in some typical heavy-duty mobile machinery are collective works of reviews illustrative of recent advances. This book is interesting and useful to a wide readership in the various fields of fluid power transmission and control.

Download or read book Advances in Micro Nano Electromechanical Systems and Fabrication Technologies written by Kenichi Takahata and published by BoD – Books on Demand. This book was released on 2013-05-29 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: MEMS technology is increasingly penetrating into our lives and improving our quality of life. In parallel to this, advances in nanotechnology and nanomaterials have been catalyzing the rise of NEMS. Consisting of nine chapters reviewing state-of-the-art technologies and their future trends, this book focuses on the latest development of devices and fabrication processes in the field of these extremely miniaturized electromechanical systems. The book offers new knowledge and insight into design, fabrication, and packaging, as well as solutions in these aspects for targeted applications, aiming to support scientists, engineers and academic trainees who are engaged in relevant research. In the chapters, practical issues and advances are discussed for flexible microdevices, bioMEMS, intelligent implants, optical MEMS, nanomachined structures and NEMS, and others. Most of the chapters also focus on novel fabrication/packaging processes, including silicon bulk micromachining, laser micromachining, nanolithography, and packaging for implantable microelectronics enabled by nanomaterials.

Download or read book Modelling and Controller Design of an Industrial Electro hydraulic Actuator System Using Servo Valve written by Jason Micheal and published by . This book was released on 2012 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book MEMS Module Multistage Micro Hydraulic Displacement Amplifier Actuation written by Animesh Saha and published by GRIN Verlag. This book was released on 2021-08-03 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Akademische Arbeit aus dem Jahr 2016 im Fachbereich Elektrotechnik, , Sprache: Deutsch, Abstract: This paper explains the importance of Micro-Electro-Mechanical Systems (MEMS) in the modern world. The last 30 years of Micro-Electro-Mechanical Systems (MEMS) have been seen as an era of exponential development of electronic devices such as sensors and actuators on the order of micro dimension. Throughout these three decades, MEMS becomes the key to make a multibillion dollar industrial production from the very beginning of the research and experimental outcomes in the laboratories. Besides the electronic devices there are lots of applications of MEMS in small robotics is found today. Different types of MEMS actuators are designed to study and lots of diverse researches have been conducted on those designs to build small microrobots.

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.

Download or read book Smart Flow Control Processes in Micro Scale written by Bengt Sunden and published by MDPI. This book was released on 2020-12-29 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, microfluidic devices with a large surface-to-volume ratio have witnessed rapid development, allowing them to be successfully utilized in many engineering applications. A smart control process has been proposed for many years, while many new innovations and enabling technologies have been developed for smart flow control, especially concerning “smart flow control” at the microscale. This Special Issue aims to highlight the current research trends related to this topic, presenting a collection of 33 papers from leading scholars in this field. Among these include studies and demonstrations of flow characteristics in pumps or valves as well as dynamic performance in roiling mill systems or jet systems to the optimal design of special components in smart control systems.

Download or read book Smart Material Electrohydrostatic Actuator for Intelligent Transportation Systems written by Michael J. Rupinsky and published by . This book was released on 2006 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Future intelligent transportation systems require actuation systems that are lightweight, compact and have a large power density. Due to their solid-state operation, fast frequency response, and high power-to-weight ratio, electrohydrostatic actuators (EHAs) based on smart materials are attractive as a replacement for conventional hydraulic actuators. Unlike conventional hydraulic systems, EHAs use smart material pumps which are driven electrically and integrated within the EHA rather than being mechanically connected to the vehicle's engine, thus precluding the need for accessory gear boxes and plumbing throughout the vehicle. This also permits the EHA to achieve much higher frequency responses, much lower overall power consumption, and increased reliability. The automotive and aerospace industries currently are the leading sectors in EHA research. Specific automotive uses include active suspension concepts, fly-by-wire steering and braking; aircraft uses include landing gear actuation and adaptive morphing of wings for advanced aerodynamic control. A smart material deforms and changes its properties when exposed to external fields, for example electric fields (piezoelectric materials) or magnetic fields (magnetostrictive materials). Since smart materials produce small-stroke, large-force, highfrequency motion output in response to external fields, methods for transmitting small vibrations into large deformations and forces are needed. This document is focused on the development of a smart material-based pump for EHAs in which the mechanical vibrations produced by a magnetostrictive alloy, terbium-iron-dysprosium, are rectified by means of diode-type mechanical reed valves. A prototype pump is designed and constructed. Measurements conducted on this system demonstrate the ability of the reed valves to effectively rectify the oscillatory pressure pulses created by the magnetostrictive material and create unidirectional fluid flow. A maximum blocked pressure differential of 1100 psi is achieved with a power consumption of 84 W. A dynamic system model of the magnetostrictive pump with an attached hydraulic actuator is presented. The model is developed by using a lumped parameter analysis on the hydraulic circuit and using Newton's laws to couple the hydraulic and the mechanical domains. Coupling between mechanical and electrical domains is achieved by formulating electroacoustic transduction equations. Coupled differential equations of the system level model are written in state space form and solved numerically in MATLAB. The solver assumes a linear system for each time step and utilizes the values at previous times as initial conditions in order to march through time. The model can be easily modified in order to accurately model testing of the pump. The dynamic system model aids in validating the device operation and gives insight into future design modifications aimed at increasing the pressure output. Calculation of mechanical and electrical impedances allows analysis of the effect of hydraulic loading on pump operation.

Download or read book Tunable Micro optics written by Hans P. Zappe and published by Cambridge University Press. This book was released on 2016 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive survey of state-of-the-art tunable micro-optics, covering advances in materials, components and systems.

Download or read book Instrumentation Systems written by Tasuku Senbon and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 805 pages. Available in PDF, EPUB and Kindle. Book excerpt: Instrumentation technology is vitally important today since it supports the automation of a wide range of manufacturing factories, the chemical industryand electrical power gene- ration facilities. Engineers who are active in these and ot- her fields need the technical information and support provi- ded by this comprehensive text. Modern instrumentation tech- nology is a constantly-changing kaleidoscope of technologi- cal progress that is keeping pace with the entire field of micro-electronics. This is necessary to keep up with the progress evident in the industries that it supports. As a result, the traditional technology of industrial instruments has evolved into one of comprehensive instrumentation sy- stems for an entire factory or plant. This state-of-the-art book is a handy, single-source reference for information re- quired by engineers in the instrumentation business.