Design and Modeling of a New Electro Hydraulic Actuator PDF Download
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Languages : en
Pages :
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Languages : en
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Author: Vladimir Pastrakuljic
Publisher:
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Category :
Languages : en
Pages : 0
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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.
Author: Mukhtar Abdulsalam Irhouma
Publisher:
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Category : Electronic controllers
Languages : en
Pages : 85
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Author: Qing Guo
Publisher: CRC Press
ISBN: 1351798251
Category : Technology & Engineering
Languages : en
Pages : 198
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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.
Author: J. Jaidev Vyas
Publisher: Springer
ISBN: 9811325472
Category : Technology & Engineering
Languages : en
Pages : 70
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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.
Author: Jason Micheal
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Category :
Languages : en
Pages : 0
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Author: Siti Hasmira Mhd. Hanafiyah
Publisher:
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Category : Electric power transmission
Languages : en
Pages : 66
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Author: A. L. Helinski
Publisher:
ISBN:
Category :
Languages : en
Pages : 98
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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).
Author: William Robert Gerlach
Publisher:
ISBN:
Category :
Languages : en
Pages : 146
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Author: Gilbert Ray Hardesty
Publisher:
ISBN:
Category :
Languages : en
Pages : 86
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