Hydraulic Servo-systems

Hydraulic Servo-systems PDF Author: Mohieddine Jelali
Publisher: Springer Science & Business Media
ISBN: 1447100999
Category : Technology & Engineering
Languages : en
Pages : 380

Get Book Here

Book Description
This up-to-date book details the basic concepts of many recent developments of nonlinear identification and nonlinear control, and their application to hydraulic servo-systems. It is very application-oriented and provides the reader with detailed working procedures and hints for implementation routines and software tools.

Hydraulic Servo-systems

Hydraulic Servo-systems PDF Author: Mohieddine Jelali
Publisher: Springer Science & Business Media
ISBN: 1447100999
Category : Technology & Engineering
Languages : en
Pages : 380

Get Book Here

Book Description
This up-to-date book details the basic concepts of many recent developments of nonlinear identification and nonlinear control, and their application to hydraulic servo-systems. It is very application-oriented and provides the reader with detailed working procedures and hints for implementation routines and software tools.

High Speed Pneumatic Theory and Technology Volume I

High Speed Pneumatic Theory and Technology Volume I PDF Author: Yaobao Yin
Publisher: Springer
ISBN: 9811359865
Category : Technology & Engineering
Languages : en
Pages : 370

Get Book Here

Book Description
This book covers the author’s research achievements and the latest advances in high-speed pneumatic control theory and applied technologies. It presents the basic theory and highlights pioneering technologies resulting from research and development efforts in aerospace, aviation and other major equipment, including: pneumatic servo control theory, pneumatic nonlinear mechanisms, aerothermodynamics, pneumatic servo mechanisms, and high-speed pneumatic control theory.

Electro Hydraulic Control Theory and Its Applications Under Extreme Environment

Electro Hydraulic Control Theory and Its Applications Under Extreme Environment PDF Author: Yaobao Yin
Publisher: Butterworth-Heinemann
ISBN: 0128140577
Category : Technology & Engineering
Languages : en
Pages : 510

Get Book Here

Book Description
Electro hydraulic Control Theory and Its Applications under Extreme Environment not only presents an overview on the topic, but also delves into the fundamental mathematic models of electro hydraulic control and the application of key hydraulic components under extreme environments. The book contains chapters on hydraulic system design, including thermal analysis on hydraulic power systems in aircraft, power matching designs of hydraulic rudder, and flow matching control of asymmetric valves and cylinders. With additional coverage on new devices, experiments and application technologies, this book is an ideal reference on the research and development of significant equipment. - Addresses valves' application in aircrafts, including servo valves, relief valves and pressure reducing valves - Presents a qualitative and quantitative forecast of future electro-hydraulic servo systems, service performance, and mechanization in harsh environments - Provides analysis methods, mathematical models and optimization design methods of electro-hydraulic servo valves under extreme environments

Commercial Aircraft Hydraulic Systems

Commercial Aircraft Hydraulic Systems PDF Author: Shaoping Wang
Publisher: Academic Press
ISBN: 0124199925
Category : Technology & Engineering
Languages : en
Pages : 278

Get Book Here

Book Description
Commercial Aircraft Hydraulic Systems: Shanghai Jiao Tong University Press Aerospace Series focuses on the operational principles and design technology of aircraft hydraulic systems, including the hydraulic power supply and actuation system and describing new types of structures and components such as the 2H/2E structure design method and the use of electro hydrostatic actuators (EHAs). Based on the commercial aircraft hydraulic system, this is the first textbook that describes the whole lifecycle of integrated design, analysis, and assessment methods and technologies, enabling readers to tackle challenging high-pressure and high-power hydraulic system problems in university research and industrial contexts. Commercial Aircraft Hydraulic Systems is the latest in a series published by the Shanghai Jiao Tong University Press Aerospace Series that covers the latest advances in research and development in aerospace. Its scope includes theoretical studies, design methods, and real-world implementations and applications. The readership for the series is broad, reflecting the wide range of aerospace interest and application. Titles within the series include Reliability Analysis of Dynamic Systems, Wake Vortex Control, Aeroacoustics: Fundamentals and Applications in Aeropropulsion Systems, Computational Intelligence in Aerospace Engineering, and Unsteady Flow and Aeroelasticity in Turbomachinery. - Presents the first book to describe the interface between the hydraulic system and the flight control system in commercial aircraft - Focuses on the operational principles and design technology of aircraft hydraulic systems, including the hydraulic power supply and actuation system - Includes the most advanced methods and technologies of hydraulic systems - Describes the interaction between hydraulic systems and other disciplines

On Electrohydraulic Pressure Control for Power Steering Applications

On Electrohydraulic Pressure Control for Power Steering Applications PDF Author: Alessandro Dell'Amico
Publisher: Linköping University Electronic Press
ISBN: 9176858383
Category :
Languages : en
Pages : 209

Get Book Here

Book Description
This thesis deals with the Electrohydraulic Power Steering system for road vehicles, using electronic pressure control valves. With an ever increasing demand for safer vehicles and fewer traffic accidents, steering-related active safety functions are becoming more common in modern vehicles. Future road vehicles will also evolve towards autonomous vehicles, with several safety, environmental and financial benefits. A key component in realising such solutions is active steering. The power steering system was initially developed to ease the driver's workload by assisting in turning the wheels. This is traditionally done through a passive open-centre hydraulic system and heavy trucks must still rely on fluid power, due to the heavy work forces. Since the purpose of the original system is to control the assistive pressure, one way would be to use proportional pressure control valves. Since these are electronically controlled, active steering is possible and with closed-centre, energy efficiency can be significantly improved on. In this work, such a system is analysed in detail with the purpose of investigating the possible use of the system for Boost curve control and position control for autonomous driving. Commercially available valves are investigated since they provide an attractive solution. A model-based approach is adopted, where simulation of the system is an important tool. Another important tool is hardware-in-the-loop simulation. A test rig of an electrohydraulic power steering system, is developed. This work has shown how proportional pressure control valves can be used for Boost curve control and position control and what implications this has on a system level. As it turns out, the valves add a great deal of time lag and with the high gain from the Boost curve, this creates a control challenge. The problem can be handled by tuning the Boost gain, pressure response and damping and has been effectively shown through simulation and experiments. For position control, there is greater freedom to design the controller to fit the system. The pressure response can be made fast enough for this case and the time lag is much less critical.

Approximate Transfer Functions for Flexible-booster-and-autopilot Analysis

Approximate Transfer Functions for Flexible-booster-and-autopilot Analysis PDF Author: David R. Lukens
Publisher:
ISBN:
Category : Space trajectories
Languages : en
Pages : 340

Get Book Here

Book Description


Hydraulic Control Systems

Hydraulic Control Systems PDF Author: Herbert E. Merritt
Publisher: John Wiley & Sons
ISBN: 9780471596172
Category : Technology & Engineering
Languages : en
Pages : 370

Get Book Here

Book Description
The use of hydraulic control is rapidly growing and the objective of this book is to present a rational and well-balanced treatment of its components and systems. Coverage includes a review of applicable topics in fluid mechanisms; components encountered in hydraulic servo controlled systems; systems oriented issues and much more. Also offers practical suggestions concerning testing and limit cycle oscillation problems.

WADC Technical Report

WADC Technical Report PDF Author: United States. Wright Air Development Division
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1910

Get Book Here

Book Description


Applied Mechanics Reviews

Applied Mechanics Reviews PDF Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 934

Get Book Here

Book Description


High Speed Pneumatic Theory and Technology Volume II

High Speed Pneumatic Theory and Technology Volume II PDF Author: Yaobao Yin
Publisher: Springer Nature
ISBN: 9811522022
Category : Science
Languages : en
Pages : 396

Get Book Here

Book Description
This book highlights the latest developments and the author’s own research achievements in high speed pneumatic control theory and applied technology. Chiefly focusing on the control system and energy system, it presents the basic theory and pioneering technologies for aerospace and aviation, while also addressing e.g. pneumatic servo control theory, pneumatic nonlinear mechanisms, aerothermodynamics, pneumatic servo mechanisms, and sample applications of high temperature and high speed gas turbine systems in aerospace, aviation, and major equipment.