Download or read book Analysis and Design of a Digital Actuator written by Zacharias Vorgias and published by . This book was released on 1975 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis and Design of a Digital analog Control System which Utilizes a Digital Actuator written by Tommy Wayne Nickell and published by . This book was released on 1965 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Control Systems with Actuator Saturation written by Tingshu Hu and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Saturation nonlinearities are ubiquitous in engineering systems. In control systems, every physical actuator or sensor is subject to saturation owing to its maximum and minimum limits. A digital filter is subject to saturation if it is implemented in a finite word length format. Saturation nonlinearities are also purposely introduced into engineering systems such as control sys tems and neural network systems. Regardless of how saturation arises, the analysis and design of a system that contains saturation nonlinearities is an important problem. Not only is this problem theoretically challenging, but it is also practically imperative. This book intends to study control systems with actuator saturation in a systematic way. It will also present some related results on systems with state saturation or sensor saturation. Roughly speaking, there are two strategies for dealing with actuator sat uration. The first strategy is to neglect the saturation in the first stage of the control design process, and then to add some problem-specific schemes to deal with the adverse effects caused by saturation. These schemes, known as anti-windup schemes, are typically introduced using ad hoc modifications and extensive simulations. The basic idea behind these schemes is to intro duce additional feedbacks in such a way that the actuator stays properly within its limits. Most of these schemes lead to improved performance but poorly understood stability properties.

Download or read book Dynamic Analysis of Digital Stepping Motor Actuators written by David Joseph Robinson and published by . This book was released on 1967 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Digital Control Engineering written by M. Sami Fadali and published by Academic Press. This book was released on 2012-08-21 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Digital controllers are part of nearly all modern personal, industrial, and transportation systems. Every senior or graduate student of electrical, chemical or mechanical engineering should therefore be familiar with the basic theory of digital controllers. This new text covers the fundamental principles and applications of digital control engineering, with emphasis on engineering design. Fadali and Visioli cover analysis and design of digitally controlled systems and describe applications of digital controls in a wide range of fields. With worked examples and Matlab applications in every chapter and many end-of-chapter assignments, this text provides both theory and practice for those coming to digital control engineering for the first time, whether as a student or practicing engineer. Extensive Use of computational tools: Matlab sections at end of each chapter show how to implement concepts from the chapter Frees the student from the drudgery of mundane calculations and allows him to consider more subtle aspects of control system analysis and design An engineering approach to digital controls: emphasis throughout the book is on design of control systems. Mathematics is used to help explain concepts, but throughout the text discussion is tied to design and implementation. For example coverage of analog controls in chapter 5 is not simply a review, but is used to show how analog control systems map to digital control systems Review of Background Material: contains review material to aid understanding of digital control analysis and design. Examples include discussion of discrete-time systems in time domain and frequency domain (reviewed from linear systems course) and root locus design in s-domain and z-domain (reviewed from feedback control course) Inclusion of Advanced Topics In addition to the basic topics required for a one semester senior/graduate class, the text includes some advanced material to make it suitable for an introductory graduate level class or for two quarters at the senior/graduate level. Examples of optional topics are state-space methods, which may receive brief coverage in a one semester course, and nonlinear discrete-time systems Minimal Mathematics Prerequisites The mathematics background required for understanding most of the book is based on what can be reasonably expected from the average electrical, chemical or mechanical engineering senior. This background includes three semesters of calculus, differential equations and basic linear algebra. Some texts on digital control require more

Download or read book Design Rules for Actuators in Active Mechanical Systems written by Oriol Gomis-Bellmunt and published by Springer Science & Business Media. This book was released on 2009-10-29 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Design Rules for Actuators in Active Mechanical Systems" deals with the formulation of model-based design rules to be used in the conception of optimized mechatronic and adaptronic systems. The book addresses the comparison of different actuator classes for given applications and offers answers to the following questions: What is the relationship between actuator geometry and primary output quantities? How scalable are actuators based on the same principle? How are energetic output quantities (work and power) related to mechanical load and geometry? How should actuators be designed and sized to obtain the best performance for the chosen actuator kind, and for a given application? "Design Rules for Actuators in Active Mechanical Systems" will be of use to industry professionals, such as actuator and machine designers, as well as to researchers and students of mechanical engineering, mechatronics, and electrical engineering.

Download or read book Design and Development of an Electro hydraulic Digital Actuator written by Gilbert Ray Hardesty and published by . This book was released on 1961 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fundamentals of Engineering High Performance Actuator Systems written by Kenneth Hummel and published by SAE International. This book was released on 2016-12-01 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Actuators are the key to allowing machines to become more sophisticated and perform complex tasks that were previously done by humans, providing motion in a safe, controlled manner. As defined in this book, actuator design is a subset of mechanical design. It involves engineering the mechanical components necessary to make a product move as desired. Fundamentals of Engineering High-Performance Actuator Systems, by Ken Hummel, was written as a text to supplement actuator design courses, and a reference to engineers involved in the design of high-performance actuator systems. It highlights the design approach and features what should be considered when moving a payload at precision levels and/or speeds that are not as important in low-performance applications. The main areas covered in this book are: Fundamentals of actuator design Actuator performance Loads that the actuator and its surrounding structure must accommodate Constraints which determine the type of load the actuator needs to accommodate The design margin applied to components of any given design Environment which must include the interactions between product and the conditions it will have to perform under Component strength to ensure safety from failure Component stiffness Maintainability Reliability Cost

Download or read book Analysis and Design of Control Systems with Saturating Actuators written by Tingshu Hu and published by . This book was released on 2001 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis Design and Control of a Nitinol Based Actuator end Effector written by K. N. Dinesh and published by . This book was released on 1991 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanical Analysis and Design of a Bistable Electromagnetic Linear Actuator Based on Compliant Mechanisms written by Alejandro Ortega Laborín and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The technologies that were once applied for the development of electrical system components have performed their assigned tasks for years, and they have proven completely reliable; but, they can no longer face the new exigences in the global market: they becoming obsolete. Schneider electric has proposed the exploration of the emergent technology of compliant mechanisms applied to electromagnetic linear actuators to reach new level of performance. The objective of this investigation is to synthesize and analyze a bistable compliant mechanism desgin integrated within a linear electromagnetic acuator. This work will makes a proposal of an specific compliant mechanism configuration based on many studies and testing: A strong theorical background wich results in analytical expressions to describe the mechanism behavios; a set of structural and dynamic simulations to validate the theoretical models and to gain insight into the dynamic response of the actuator; and finally, the construction of a physical prototype, wich grant experimental validation of the hypothesis of this work and to further exploration of the emerging technology of compliant mechanisms in the production of different electrical equipment components.

Download or read book Design Modeling and Experiments of 3 DOF Electromagnetic Spherical Actuators written by Liang Yan and published by Springer. This book was released on 2011-06-08 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: A spherical actuator is a novel electric device that can achieve 2/3-DOF rotational motions in a single joint with electric power input. It has advantages such as compact structure, low mass/moment of inertia, fast response and non-singularities within the workspace. It has promising applications in robotics, automobile, manufacturing, medicine and aerospace industry. This is the first monograph that introduces the research on spherical actuators systematically. It broadens the scope of actuators from conventional single-axis to multi-axis, which will help both beginners and researchers to enhance their knowledge on electromagnetic actuators. Generic analytic modeling methods for magnetic field and torque output are developed, which can be applied to the development of other electromagnetic actuators. A parametric design methodology that allows fast analysis and design of spherical actuators for various applications is proposed. A novel non-contact high-precision 3-DOF spherical motion sensing methodology is developed and evaluated with experiments, which shows that it can achieve one order of magnitude higher precision than conventional methods. The technologies of nondimensionalization and normalization are introduced into magnetic field analysis the first time, and a benchmark database is established for the reference of other researches on spherical actuators.

Download or read book Conceptual Design and Analysis of a Novel Actuator written by and published by . This book was released on 1988 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional robotic actuators which motive power for manipulators have been commonly limited to three basic types: electric, pneumatic and hydraulic. Each type has advantages and limitations which have dictated their respective suitability for specific applications. However, new manipulator functions may require such qualities as stiffness, high speed, low weight, low inertia, high power output, reversibility, and accurate positioning, which are not usually mutually compatible within an actuator type. With the increased use of robots in industry and the military, new robot-specific actuators will be developed to better meet functional requirements. One concept to be considered is a stiff pneumatic-hydraulic actuator for mobile anthropomorphic robot application. This paper explores the conceptual design feasibility of such an actuator system, and presents a first order system analysis of key parts.

Download or read book Design and Analysis of Control Systems written by Arthur G.O. Mutambara and published by CRC Press. This book was released on 2017-12-14 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written to inspire and cultivate the ability to design and analyze feasible control algorithms for a wide range of engineering applications, this comprehensive text covers the theoretical and practical principles involved in the design and analysis of control systems. From the development of the mathematical models for dynamic systems, the author shows how they are used to obtain system response and facilitate control, then addresses advanced topics, such as digital control systems, adaptive and robust control, and nonlinear control systems.

Download or read book Modeling and Control of Precision Actuators written by Tan Kok Kiong and published by CRC Press. This book was released on 2018-10-08 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling and Control of Precision Actuators explores new technologies that can ultimately be applied in a myriad of industries. It covers dynamical analysis of precise actuators and strategies of design for various control applications. The book addresses four main schemes: modeling and control of precise actuators; nonlinear control of precise actuators, including sliding mode control and neural network feedback control; fault detection and fault-tolerant control; and advanced air bearing control. It covers application issues in the modeling and control of precise actuators, providing several interesting case studies for more application-oriented readers. Introduces the driving forces behind precise actuators Describes nonlinear dynamics of precise actuators and their mathematical forms, including hysteresis, creep, friction, and force ripples Presents the control strategies for precise actuators based on Preisach model as well as creep dynamics Develops relay feedback techniques for identifying nonlinearities such as friction and force ripples Discusses a MPC approach based on piecewise affine models which emulate the frictional effects in the precise actuator Covers the concepts of air bearing stages with the corresponding control method Provides a set of schemes suitable for fault detection and accommodation control of mechanical systems Emphasizing design theory and control strategies, the book includes simulation and practical examples for each chapter; covers precise actuators such as piezo motors, coil motors, air bearing motors, and linear motors; discusses integration among different technologies; and includes three case studies in real projects. The book concludes by linking design methods and their applications, emphasizing the key issues involved and how to implement the precision motion control tasks in a practical system. It provides a concise and comprehensive source of the state-of-the-art developments and results for modeling and control of precise actuators.

Download or read book Design of a Conveyance Device Based on a Digital Actuators Array and Structured Plate written by Jing Xu and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The open loop control is widely used by the digital systems to facilitate the integration in complex systems because no sensor is needed. The research is based on digital actuator which is composed of a mobile part and a fixed part. The actuator moves between the discrete positions. The discrete displacement consumes low energy, which is controlled by impulse only needed to switch the actuator between the discrete positions. However, the stroke of digital actuator is fixed at the manufacturing. So the digital actuators array is used to obtain variable strokes. A digital actuators array used here with a structured plate is applied as a 2D planar conveyance. Firstly, an actuators array composed of 25 elementary actuators with a flat plate is studied. The simulated results are compared with the experimental results. Then another actuators array composed of four elementary actuators with a structured plate is designed. The design and the plate displacement are firstly presented. Then the prototype of the conveyance is fabricated with laser cutting machine and 3D printer. The experiment is then tested in one direction to study the plate displacement. The open loop control is simple by using current impulse. The operation can be well functioned which is observed during the experiment. The experimental results are compared with the theoretical results.

Download or read book Mechanical Design and Analysis of a Discrete Variable Transmission System for Transmission based Actuators written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past few years, replacing the hydraulic servo actuators with their electrical counter parts for robotics and remote handling systems has been an active field of research. These systems are of particular interest for tasks involved with the US Department of Energy, where the level of radiation exposure is high and the tasks are highly repetitive. With the hydraulic servo actuators, one is concerned with the issues like the high complexity, cost of the system and the difficulty of maintenance of the system. For high payload operations, the hydraulic systems provide an order of magnitude increase in the power density, which is almost impossible to achieve using the electrical servo actuators. Hence, for the electrical servo actuators to be used for high payload operations, the fundamental issue concerning the power and torque density must be addressed. Previous research conducted on this front suggested the use of a variable speed transmission system to spread the servomotor's torque-speed characteristics across a wider output speed range. This has the effect of allowing smaller high power motors to also deliver high torques at low speeds. By using a variable speed transmission, the motor size can be reduced dramatically while increasing the overall actuator power density in the process. This work goes further into the detailed design of the discrete variable transmission system. A three-stage planetary gear transmission system is considered for the analysis and design. With the use of the three-stage planetary gear transmission, there are a complex and varied design issues involved. Selecting a configuration for the transmission is the first question to be answered. With the given configuration, and the ratios required the individual gears have to be sized accordingly. Other design elements involve the design of the shafting, achieving the desired configuration, bearings, housing and the design of a gear shifting mechanism. A detailed kinematic and dynamic analysis of the entire gear system is required for the design of the various components mentioned above. Analytical results are presented along with a computer-aided analysis of the work using the Pro-Engineer design and analysis software. Future work on this will be to turn this into a commercially available system, which comes down to optimizing the current design. Possibilities of optimization for the current design will be identified. A discussion on the prototype evaluation of the transmission system along with a sample test result is presented.