Fluid Power Pumps and the Electrification

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Publisher : Linköping University Electronic Press
ISBN 13 : 9179298303
Total Pages : 92 pages
Book Rating : 4.1/5 (792 download)

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Book Synopsis Fluid Power Pumps and the Electrification by : Samuel Kärnell

Download or read book Fluid Power Pumps and the Electrification written by Samuel Kärnell and published by Linköping University Electronic Press. This book was released on 2020-05-25 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: More and more vehicles are being electrified. Mobile working machines and heavy trucks are not excluded, and these machines are often hydraulically intense. Electrification entails new requirements for the hydraulic system and its components, and these requirements must be taken into consideration. Hydraulic systems have looked similar for a long time, but now there is an opportunity to advance. Many things change when a diesel engine is replaced with an electric motor. For example, variable-speed control becomes more relevant, electric regeneration becomes possible, and the use of multiple prime movers becomes an attractive alternative. The noise from the hydraulic system will also be more noticeable when the diesel engine is gone. Furthermore, the introduction of batteries to the system makes the energy more valuable, since batteries are heavy and costly compared to a diesel tank. Therefore, it is commercially viable to invest in the hydraulic system. This thesis revolves around the heart of the hydraulic system, that also is the root of all evil. That is the pump. Traditionally, a pump has had either a fixed displacement or a continuously variable displacement. Here, the focus is on something in between, namely a pump with discrete displacement. The idea of discrete displacement is far from unique, but has not been investigated in detail in combination with variable speed before. In this thesis, a novel design for a quiet pump with discrete displacement is presented and analysed. The results show that discrete displacement is relevant from an energy perspective for machines working extensively at high pressure levels and with low flow rates, and that a few discrete values are enough to make a significant difference. However, for other cycles, the possible energy gains are very limited, but the discrete displacement can be a valuable feature if downsizing the electric machine is of interest.

On Electrohydraulic Pressure Control for Power Steering Applications

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Author :
Publisher : Linköping University Electronic Press
ISBN 13 : 9176858383
Total Pages : 209 pages
Book Rating : 4.1/5 (768 download)

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Book Synopsis On Electrohydraulic Pressure Control for Power Steering Applications by : Alessandro Dell'Amico

Download or read book On Electrohydraulic Pressure Control for Power Steering Applications written by Alessandro Dell'Amico and published by Linköping University Electronic Press. This book was released on 2016-02-04 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Hydraulic Fluid Power

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Publisher : John Wiley & Sons
ISBN 13 : 1119569133
Total Pages : 704 pages
Book Rating : 4.1/5 (195 download)

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Book Synopsis Hydraulic Fluid Power by : Andrea Vacca

Download or read book Hydraulic Fluid Power written by Andrea Vacca and published by John Wiley & Sons. This book was released on 2021-04-12 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: HYDRAULIC FLUID POWER LEARN MORE ABOUT HYDRAULIC TECHNOLOGY IN HYDRAULIC SYSTEMS DESIGN WITH THIS COMPREHENSIVE RESOURCE Hydraulic Fluid Power provides readers with an original approach to hydraulic technology education that focuses on the design of complete hydraulic systems. Accomplished authors and researchers Andrea Vacca and Germano Franzoni begin by describing the foundational principles of hydraulics and the basic physical components of hydraulics systems. They go on to walk readers through the most practical and useful system concepts for controlling hydraulic functions in modern, state-of-the-art systems. Written in an approachable and accessible style, the book’s concepts are classified, analyzed, presented, and compared on a system level. The book also provides readers with the basic and advanced tools required to understand how hydraulic circuit design affects the operation of the equipment in which it’s found, focusing on the energy performance and control features of each design architecture. Readers will also learn how to choose the best design solution for any application. Readers of Hydraulic Fluid Power will benefit from: Approaching hydraulic fluid power concepts from an “outside-in” perspective, emphasizing a problem-solving orientation Abundant numerical examples and end-of-chapter problems designed to aid the reader in learning and retaining the material A balance between academic and practical content derived from the authors’ experience in both academia and industry Strong coverage of the fundamentals of hydraulic systems, including the equations and properties of hydraulic fluids Hydraulic Fluid Power is perfect for undergraduate and graduate students of mechanical, agricultural, and aerospace engineering, as well as engineers designing hydraulic components, mobile machineries, or industrial systems.

Mobile Working Hydraulic System Dynamics

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Publisher : Linköping University Electronic Press
ISBN 13 : 9176859711
Total Pages : 108 pages
Book Rating : 4.1/5 (768 download)

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Book Synopsis Mobile Working Hydraulic System Dynamics by : Mikael Axin

Download or read book Mobile Working Hydraulic System Dynamics written by Mikael Axin and published by Linköping University Electronic Press. This book was released on 2015-09-07 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Advances in Hydraulic and Pneumatic Drives and Control 2020

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Author :
Publisher : Springer Nature
ISBN 13 : 3030595099
Total Pages : 454 pages
Book Rating : 4.0/5 (35 download)

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Book Synopsis Advances in Hydraulic and Pneumatic Drives and Control 2020 by : Jarosław Stryczek

Download or read book Advances in Hydraulic and Pneumatic Drives and Control 2020 written by Jarosław Stryczek and published by Springer Nature. This book was released on 2020-10-18 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on cutting-edge research and technical achievements in the field of hydraulic drives. The chapters, selected from contributions presented at the International Scientific-Technical Conference on Hydraulic and Pneumatic Drives and Controls, NSHP 2020, held on October 21-23, 2020, in Trzebieszowice, Poland, cover a wide range of topics such as theoretical advances in fluid technology, work machines in mining, construction, marine and manufacturing industry, and practical issues relating to the application and operation of hydraulic drives. Further topics include: safety and environmental issues associated with the use of machines with hydraulic drive, and new materials in design of hydraulic components. A special emphasis is given to new solutions for hydraulic components and systems as well as to the identification of phenomena and processes occurring during the operation of hydraulic and pneumatic systems.

New Applications of Electric Drives

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Author :
Publisher : BoD – Books on Demand
ISBN 13 : 9535122339
Total Pages : 198 pages
Book Rating : 4.5/5 (351 download)

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Book Synopsis New Applications of Electric Drives by : Miroslav Chomat

Download or read book New Applications of Electric Drives written by Miroslav Chomat and published by BoD – Books on Demand. This book was released on 2015-12-09 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last few decades, electric drives have found their place in a considerable number of diverse applications. They are successfully replacing some other traditional types of drives owing to their better performance and excellent controllability. The introduction of electric drives is in most cases also beneficial from the ecological point of view as they are not directly dependent on fossil fuels and an increasing part of electric energy they consume is generated in renewable energy sources. This book focuses on applications of electric drives that emerged only recently and/or novel aspects that appear in them. Particular attention is given to using electric drives in vehicles, aircraft, non-road mobile machinery, and HVAC systems.

Hydrostatic Transmissions and Actuators

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Publisher : John Wiley & Sons
ISBN 13 : 111881889X
Total Pages : 408 pages
Book Rating : 4.1/5 (188 download)

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Book Synopsis Hydrostatic Transmissions and Actuators by : Gustavo Costa

Download or read book Hydrostatic Transmissions and Actuators written by Gustavo Costa and published by John Wiley & Sons. This book was released on 2015-07-22 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrostatic Transmissions and Actuators takes a pedagogical approach and begins with an overview of the subject, providing basic definitions and introducing fundamental concepts. Hydrostatic transmissions and hydrostatic actuators are then examined in more detail with coverage of pumps and motors, hydrostatic solutions to single-rod actuators, energy management and efficiency and dynamic response. Consideration is also given to current and emerging applications of hydrostatic transmissions and actuators in automobiles, mobile equipment, wind turbines, wave energy harvesting and airplanes. End of chapter exercises and real world industrial examples are included throughout and a companion website hosting a solution manual is also available. Hydrostatic Transmissions and Actuators is an up to date and comprehensive textbook suitable for courses on fluid power systems and technology, and mechatronics systems design.

Model Validation and Uncertainty Quantification, Volume 3

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Publisher : Springer Nature
ISBN 13 : 3030476383
Total Pages : 426 pages
Book Rating : 4.0/5 (34 download)

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Book Synopsis Model Validation and Uncertainty Quantification, Volume 3 by : Zhu Mao

Download or read book Model Validation and Uncertainty Quantification, Volume 3 written by Zhu Mao and published by Springer Nature. This book was released on 2020-10-27 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Model Validation and Uncertainty Quantification, Volume 3: Proceedings of the 38th IMAC, A Conference and Exposition on Structural Dynamics, 2020, the third volume of nine from the Conference brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Model Validation and Uncertainty Quantification, including papers on: Uncertainty Quantification in Material Models Uncertainty Propagation in Structural Dynamics Practical Applications of MVUQ Advances in Model Validation & Uncertainty Quantification: Model Updating Model Validation & Uncertainty Quantification: Industrial Applications Controlling Uncertainty Uncertainty in Early Stage Design Modeling of Musical Instruments Overview of Model Validation and Uncertainty

On Motion Control of Linear Incremental Hydraulic Actuators

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Author :
Publisher : Linköping University Electronic Press
ISBN 13 : 9176854256
Total Pages : 91 pages
Book Rating : 4.1/5 (768 download)

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Book Synopsis On Motion Control of Linear Incremental Hydraulic Actuators by : Martin Hochwallner

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.

Advances in Hydraulic and Pneumatic Drives and Control 2023

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Publisher : Springer Nature
ISBN 13 : 3031430026
Total Pages : 334 pages
Book Rating : 4.0/5 (314 download)

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Book Synopsis Advances in Hydraulic and Pneumatic Drives and Control 2023 by : Jarosław Stryczek

Download or read book Advances in Hydraulic and Pneumatic Drives and Control 2023 written by Jarosław Stryczek and published by Springer Nature. This book was released on 2023-09-25 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on cutting-edge research and technical achievements in the field of hydraulic drives. The chapters, selected from contributions presented at the International Scientific-Technical Conference on Hydraulic and Pneumatic Drives and Controls, NSHP 2023, held on October 11-13, 2023, in Piechowice, Poland, cover a wide range of topics such as theoretical advances in fluid technology, work machines in mining, construction, marine and manufacturing industry, and practical issues relating to the application and operation of hydraulic drives. Further topics include: safety and environmental issues associated with the use of machines with hydraulic drive, designing test stands with hydraulic and pneumatic components, advancing control of hydraulic systems, analyzing vibration issues, application of renewable energy sources, and new materials in the design of hydraulic components. Special emphasis is given to new solutions for hydraulic components and systems as well as to the identification of phenomena and processes occurring during the operation of hydraulic and pneumatic systems.

Novel Industry 4.0 Technologies and Applications

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Publisher : MDPI
ISBN 13 : 3039435833
Total Pages : 270 pages
Book Rating : 4.0/5 (394 download)

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Book Synopsis Novel Industry 4.0 Technologies and Applications by : Nikolaos Papakostas

Download or read book Novel Industry 4.0 Technologies and Applications written by Nikolaos Papakostas and published by MDPI. This book was released on 2020-11-25 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Industry 4.0 paradigm has led to the creation of new opportunities for taking advantage of a set of diverse technologies in the manufacturing domain. This book touches on a series of advanced technologies and research fields, including Internet of Things, Augmented and Virtual Reality, Machine Learning, Advanced Robotics, Additive Manufacturing, System and Process Simulation, Computer-Aided Design/Engineering/Manufacturing/Process Planning Systems as well as Product Lifecycle Management Platforms. The topics covered span a series of diverse areas related to a) product design and development, b) manufacturing systems and operations, c) process engineering, and d) Industry 4.0 technologies review and realization.

Proceedings of the Joint International Conference: 10th Textile Conference and 4th Conference on Engineering and Entrepreneurship

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Publisher : Springer Nature
ISBN 13 : 3031489330
Total Pages : 559 pages
Book Rating : 4.0/5 (314 download)

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Book Synopsis Proceedings of the Joint International Conference: 10th Textile Conference and 4th Conference on Engineering and Entrepreneurship by : Genti Guxho

Download or read book Proceedings of the Joint International Conference: 10th Textile Conference and 4th Conference on Engineering and Entrepreneurship written by Genti Guxho and published by Springer Nature. This book was released on 2024-01-09 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings book encompass a wide range of significant topics within the realms of Technologies, Engineering, Management, and Production, Entrepreneurship, Materials, Textiles, Fashion, and more. The book delves into various areas of Energetics, exploring aspects such as power production, solar power, wind turbines, advanced energetics technologies, energy resource efficiency, global warming and emissions, clean and renewable energies, as well as economic development, global warming, and environmental protections. The Constructions and Transport section features discussions on numerical methods for data manipulation, construction science and technology, transport systems, modeling of transport systems, intelligent transport, traffic management and safety. The Materials segment addresses materials science and application, biopolymers and biotechnology, metallic and composite materials, metallurgical engineering, recycling, manufacturing, and processing of various materials such as paper, plastics, rubber, glass, ceramics, and more. Management and Production topics include technology management, logistic and supply chain management, total quality management, knowledge and innovation management, financial management, marketing research and strategy, industrial marketing, operational research, project management, as well as information technology in enterprises, e-activities, and e-commerce. The book also features an extensive section dedicated to Textiles, covering textile processing and testing, technological advances in the textile industry, ecology and environment in textile production, fiber physics and textile mechanics, finishing, dyeing, and treatment techniques, modeling and simulation, smart and interactive textiles, technical and protective textiles, textile design, fashion, and garment manufacturing, innovations in textile education, as well as leather and footwear technologies.

Hydrostatic Pumps and Motors

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Publisher :
ISBN 13 : 9788188305087
Total Pages : 512 pages
Book Rating : 4.3/5 (5 download)

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Book Synopsis Hydrostatic Pumps and Motors by : Jaroslav Ivantysyn

Download or read book Hydrostatic Pumps and Motors written by Jaroslav Ivantysyn and published by . This book was released on 2003 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Industrial Hydraulics Manual

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Publisher : Ingram
ISBN 13 : 9780978802202
Total Pages : 0 pages
Book Rating : 4.8/5 (22 download)

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Book Synopsis Industrial Hydraulics Manual by :

Download or read book Industrial Hydraulics Manual written by and published by Ingram. This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

JSME International Journal

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Publisher :
ISBN 13 :
Total Pages : 1248 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis JSME International Journal by :

Download or read book JSME International Journal written by and published by . This book was released on 2003 with total page 1248 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Wave and Tidal Energy

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Publisher : John Wiley & Sons
ISBN 13 : 111901445X
Total Pages : 717 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Wave and Tidal Energy by : Deborah Greaves

Download or read book Wave and Tidal Energy written by Deborah Greaves and published by John Wiley & Sons. This book was released on 2018-03-28 with total page 717 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eine umfassende Publikation zu sämtlichen Aspekten der Wellen- und Gezeitenenergie. Wave and Tidal Energy gibt einen ausführlichen Überblick über die Entwicklung erneuerbarer Energie aus dem Meer, bezieht sich auf die neueste Forschung und Erfahrungen aus Anlagentests. Das Buch verfolgt zwei Ziele, zum einen vermittelt es Einsteigern in das Fachgebiet eine Überblick über die Wellen- und Gezeitenenergie, zum anderen ist es ein Referenzwerk für komplexere Studien und die Praxis. Es vermittelt Detailwissen zu wichtigen Themen wie Ressourcencharakterisierung, Technologie für Wellen- und Gezeitenanlagen, Stromversorgungssysteme, numerische und physikalische Modellierung, Umwelteffekte und Politik. Zusätzlich enthält es eine aktuelle Übersicht über Entwicklungen in der ganzen Welt sowie Fallstudien zu ausgewählten Projekten. Hauptmerkmale: - Ausführliches Referenzwerk zu allen Aspekten der interdisziplinären Fachrichten Wellen- und Gezeitenenergie. - Greift auf die neuesten Forschungsergebnisse und die Erfahrung führender Experten in der numerischen und laborgestützten Modellierung zurück. - Gibt einen Überblick über regionale Entwicklungen in aller Welt, repräsentative Projekte werden in Fallstudien vorgestellt. Wave and Tidal Energy ist ein wertvolles Referenzwerk für eine breite Leserschaft, von Studenten der Ingenieurwissenschaften und technischen Managern über politische Entscheidungsträger bis hin zu Studienabsolventen und Forschern.

Fundamentals of Fluid Power

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Publisher :
ISBN 13 : 9783844028263
Total Pages : 388 pages
Book Rating : 4.0/5 (282 download)

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Book Synopsis Fundamentals of Fluid Power by : Hubertus Murrenhoff

Download or read book Fundamentals of Fluid Power written by Hubertus Murrenhoff and published by . This book was released on 2014 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: