Dynamics Of Machines And Hydraulic Systems
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Dynamics Of Machines And Hydraulic Systems
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Author : Michał Stosiak
language : en
Publisher: Springer Nature
Release Date : 2024-03-13
Dynamics Of Machines And Hydraulic Systems written by Michał Stosiak and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-03-13 with Technology & Engineering categories.
The subject of this book is to examine the influence of mechanical vibration on the changes in the pressure pulsation spectrum of hydraulic systems. In book shows that machines and equipment equipped with hydraulic systems are a source of vibration with a wide frequency spectrum. Additionally, hydraulic valves are also exposed to vibration. Vibrations of the substrate on which the hydraulic valve is installed force the control element of the hydraulic valve to vibrate. The control element's vibration produced in this way causes changes in the pressure pulsation spectrum of the hydraulic system. A friction model modified using mixed friction theory can be used for the oscillating motion of the hydraulic directional control spool. Passive vibration isolation methods are proposed to reduce valve vibration. The biomimetic approach can be implemented in hydraulic systems (for pipelines) to reduce mechanical vibration and fluid pulsation. Numerical methods are employed to analyze the effectof changes in the pressure pulsation spectrum on the hydraulic efficiency of the pipelines. Examples are provided for the implementation of numerical methods in the calculation of hydraulic components and systems. Additionally, the effects of energy-saving in hydraulic systems by applying the proposed results overview in the current book. The current book will be interesting for both–scientific and manufacturing staff, since the implementation of knowledge can help to design more substantiable construction of machine hydraulic systems to avoid vibration problems.
Mechanical System Dynamics
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Author : Friedrich Pfeiffer
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-09-27
Mechanical System Dynamics written by Friedrich Pfeiffer and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-09-27 with Technology & Engineering categories.
Mechanics as a fundamental science in Physics and in Engineering deals with interactions of forces resulting in motion and deformation of material bodies. Similar to other sciences Mechanics serves in the world of Physics and in that of Engineering in a di?erent way, in spite of many and increasing inter- pendencies. Machines and mechanisms are for physicists tools for cognition and research, for engineers they are the objectives of research, according to a famous statement of the Frankfurt physicist and biologist Friedrich Dessauer. Physicists apply machines to support their questions to Nature with the goal of new insights into our physical world. Engineers apply physical knowledge to support the realization process of their ideas and their intuition. Physics is an analytical Science searching for answers to questions concerning the world around us. Engineering is a synthetic Science, where the physical and ma- ematical fundamentals play the role of a kind of reinsurance with respect to a really functioning and e?ciently operating machine. Engineering is also an iterative Science resulting in typical long-time evolutions of their products, but also in terms of the relatively short-time developments of improving an existing product or in developing a new one. Every physical or mathematical Science has to face these properties by developing on their side new methods, new practice-proved algorithms up to new fundamentals adaptable to new technological developments. This is as a matter of fact also true for the ?eld of Mechanics.
Hydraulic Machines
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Author : P. Kumar
language : en
Publisher: CRC Press
Release Date : 2012-12-27
Hydraulic Machines written by P. Kumar and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-27 with Technology & Engineering categories.
This book has been documented with the aim to include those fundamentals of 'Hydraulic Machines' which are necessary at graduate level engineering courses of any University. Basic hydraulics is extensively used in various applications in industry, construction, mining and marine engineering. The subject is part of graduate level engineering courses in mechanical, civil, mining, and marine engineering studies worldwide. Most of the literature, however, is either written with a commercial objective to promote the sale of the manufacturers or is theoretically too advanced for comprehension by graduate level engineering students. The rapid advancement in design, miniaturization, metallurgy, and hydraulic fluid characteristics has stimulated the demand for an elementary book, explaining fundamentals. Readers are supposed to be familiar with the elementary fluid mechanics, and basics of gears, piston, crank, and different levers. This book includes those fundamentals of fluid transmission of power that are necessary in graduate mechanical engineering, civil engineering, mining engineering, and marine engineering courses of any university.
Hydraulic Control Systems Theory And Practice
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Author : Shizurou Konami
language : en
Publisher: World Scientific Publishing Company
Release Date : 2016-08-19
Hydraulic Control Systems Theory And Practice written by Shizurou Konami and has been published by World Scientific Publishing Company this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-19 with Technology & Engineering categories.
A hydraulic system controls the transmission of energy. It transforms the mechanical energy of a prime motor into fluid energy. It controls the fluid configuration and transforms the fluid energy into mechanical work at specified locations. Hydraulic systems feature high power density, sensitive response and precision of control, especially when operating under computer control. Thus, they have been widely used as the energy transmission control systems in aircraft, ships, construction machinery, machine tools and others. Therefore, it is indispensable for a mechanical engineer to become versed with hydraulic control technology. The technology is mainly associated with fluid mechanics and control theories, but it is related to the wider field of engineering as well.This book provides a comprehensive treatment of the analysis and design of hydraulic control systems which will be invaluable for practising engineers, as well as undergraduate and graduate students specializing in mechanical engineering. Firstly, the fundamental concepts of hydraulic control systems are addressed, and illustrated by reference to applications in the field of aviation engineering. Secondly, the fluid mechanics necessary for the comprehension of hydraulic elements are provided. The technology of the hydraulic components composing hydraulic control systems is addressed, the key focus being on how to apply theoretical concepts into the design and analysis of hydraulic components and systems. Finally, there is a discussion on fundamental control technology and its application to hydraulic servo systems. This includes the formation of hydraulic servo systems, basic control theorems, methods identifying the dynamic characteristics of hydraulic actuator systems, and a design method for hydraulic control systems. Numerical exercises are provided at the end of each chapter.
Dynamics Of Machines And Hydraulic Systems
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Author : Michał Stosiak
language : en
Publisher: Springer
Release Date : 2024-04-27
Dynamics Of Machines And Hydraulic Systems written by Michał Stosiak and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-04-27 with Technology & Engineering categories.
The subject of this book is to examine the influence of mechanical vibration on the changes in the pressure pulsation spectrum of hydraulic systems. In book shows that machines and equipment equipped with hydraulic systems are a source of vibration with a wide frequency spectrum. Additionally, hydraulic valves are also exposed to vibration. Vibrations of the substrate on which the hydraulic valve is installed force the control element of the hydraulic valve to vibrate. The control element's vibration produced in this way causes changes in the pressure pulsation spectrum of the hydraulic system. A friction model modified using mixed friction theory can be used for the oscillating motion of the hydraulic directional control spool. Passive vibration isolation methods are proposed to reduce valve vibration. The biomimetic approach can be implemented in hydraulic systems (for pipelines) to reduce mechanical vibration and fluid pulsation. Numerical methods are employed to analyze the effect of changes in the pressure pulsation spectrum on the hydraulic efficiency of the pipelines. Examples are provided for the implementation of numerical methods in the calculation of hydraulic components and systems. Additionally, the effects of energy-saving in hydraulic systems by applying the proposed results overview in the current book. The current book will be interesting for both–scientific and manufacturing staff, since the implementation of knowledge can help to design more substantiable construction of machine hydraulic systems to avoid vibration problems.
Hydraulics Fluid Mechanics And Hydraulic Machines
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Author : RS Khurmi | N Khurmi
language : en
Publisher: S. Chand Publishing
Release Date : 1987-05
Hydraulics Fluid Mechanics And Hydraulic Machines written by RS Khurmi | N Khurmi and has been published by S. Chand Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987-05 with Technology & Engineering categories.
The favourable and warm reception,which the previous editions and reprints of this popular book has enjoyed all over India and abroad has been a matter of great satisfaction for me.
Problems In Hydraulics And Fluid Mechanics
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Author : Sandro Longo
language : en
Publisher: Springer Nature
Release Date : 2020-10-24
Problems In Hydraulics And Fluid Mechanics written by Sandro Longo and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-24 with Science categories.
This textbook offers a unique introduction to hydraulics and fluid mechanics through more than 100 exercises, with guided solutions, which students will find valuable in preparation for their preliminary or qualifying exams and for testing their grasp of the subject. In some exercises two different solution methods are proposed, to highlight the fact that the level of complexity of the calculations is often linked to the choice of method, though in most cases only the simplest method is presented. The exercises are organized by subject, covering forces on planes and curved surfaces; floating bodies; exercises that require the application of linear and angular momentum balancing in inertial and non-inertial references; pipeline systems, with particular applications to industrial plants; hydraulic systems with machines (pumps and turbines); transient phenomena in pipelines; and uniform and gradually varied flows in open channels. The book also features appendices that contain selected data and formulas of practical interest. Instructors of courses that address one or all of the above topics will find the exercises of great help in preparing their courses, while researchers will find the book useful as an accessible summary of the topics covered.
Cavitation Of Hydraulic Machinery
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Author : S. C. Li
language : en
Publisher: World Scientific
Release Date : 2000
Cavitation Of Hydraulic Machinery written by S. C. Li and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Technology & Engineering categories.
This volume in the Hydraulic Machinery Book series deals with cavitation and its effects in turbines and pumps. After introducing cavitation and its relation with hydraulic machines, the invited contributors throughout the world review in detail relevant cavitation subjects from fundamental phenomena to various problems and solution measures in hydraulic machines. The authors are internationally recognized experts in their fields.
Mobile Working Hydraulic System Dynamics
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Author : Mikael Axin
language : en
Publisher: Linköping University Electronic Press
Release Date : 2015-09-07
Mobile Working Hydraulic System Dynamics written by Mikael Axin and has been published by Linköping University Electronic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-09-07 with Hydraulic engineering categories.
This thesis deals with innovative working hydraulic systems for mobile machines. Flow control systems are studied as an alternative to load sensing. The fundamental difference is that the pump is controlled based on the operator’s command signals rather than feedback signals from the loads. This control approach enables higher energy efficiency and there is no load pressure feedback causing stability issues. Experimental results show a reduced pump pressure margin and energy saving potential for a wheel loader application. The damping contribution from the inlet and outlet orifice in directional valves is studied. Design rules are developed and verified by experiments. A novel system architecture is proposed where flow control, load sensing and open-centre are merged into a generalized system description. The proposed system is configurable and the operator can realize the characteristics of any of the standard systems without compromising energy efficiency. This can be done non-discretely on-the-fly. Experiments show that it is possible to avoid unnecessary energy losses while improving system response and increasing stability margins compared to load sensing. Static and dynamic differences between different control modes are also demonstrated experimentally.
Advanced Concepts In Fluid Mechanics And Hydraulics Machines
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Author : Dr. A N Shankar
language : en
Publisher: Academic Guru Publishing House
Release Date : 2025-01-28
Advanced Concepts In Fluid Mechanics And Hydraulics Machines written by Dr. A N Shankar and has been published by Academic Guru Publishing House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-01-28 with Study Aids categories.
With an emphasis on their applications in hydraulic systems and equipment, Advanced Concepts in Fluid Mechanics and Hydraulic Machines explores the most complex ideas of fluid mechanics. The book provides a thorough manual for comprehending intricate fluid behaviours and how they interact with hydraulic machinery, which is crucial for engineers working with fluid systems. Following a thorough introduction to fluid characteristics, the book moves on to more complicated subjects including turbulent flow, boundary layers, and multi-phase fluid systems. It places a strong emphasis on analytical methods and computational tools like Computational Fluid Dynamics (CFD), which are used in contemporary engineering practice. Theoretical considerations of important subjects are introduced in each chapter, followed by real-world fluid flow mathematical models and practical insights. This book is unusual in that it focusses on hydraulic equipment, which are essential parts of sectors including aerospace, water treatment, and power generating. Comprehensive chapters address the design and functioning of compressors, pumps, and turbines in addition to talks on energy efficiency, hydraulic system troubleshooting, and performance optimisation. Advanced Concepts in Fluid Mechanics and Hydraulic Machines provides readers with the knowledge and skills necessary to address the difficulties of developing, evaluating, and enhancing hydraulic systems in a variety of industrial applications via its thorough case studies and problem-solving format.