Transient Effects In Friction

Author : Andreas Goedecke
Publisher : Springer Science & Business Media
Page : 211 pages
File Size : 40,7 Mb
Release : 2014-07-08
Category : Science
ISBN : 9783709115060

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Transient Effects in Friction by Andreas Goedecke Pdf

Transient friction effects determine the behavior of a wide class of mechatronic systems. Classic examples are squealing brakes, stiction in robotic arms, or stick-slip in linear drives. To properly design and understand mechatronic systems of this type, good quantitative models of transient friction effects are of primary interest. The theory developed in this book approaches this problem bottom-up, by deriving the behavior of macroscopic friction surfaces from the microscopic surface physics. The model is based on two assumptions: First, rough surfaces are inherently fractal, exhibiting roughness on a wide range of scales. Second, transient friction effects are caused by creep enlargement of the real area of contact between two bodies. This work demonstrates the results of extensive Finite Element analyses of the creep behavior of surface asperities, and proposes a generalized multi-scale area iteration for calculating the time-dependent real contact between two bodies. The toolset is then demonstrated both for the reproduction of a variety of experimental results on transient friction as well as for system simulations of two example systems.

Author : A A Lubrecht,G. Dalmaz
Publisher : Elsevier
Page : 892 pages
File Size : 52,8 Mb
Release : 2004-06-04
Category : Technology & Engineering
ISBN : 9780080474649

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Transient Processes in Tribology by A A Lubrecht,G. Dalmaz Pdf

The papers contained within this volume focus on the transient aspects of the preocesses in tribology highlighting the differences obtained with stationery conditions, be they experimental analytical or numerical.

Author : John Swaffield
Publisher : Routledge
Page : 359 pages
File Size : 54,7 Mb
Release : 2010-04-27
Category : Business & Economics
ISBN : 9781134006977

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Transient Airflow in Building Drainage Systems by John Swaffield Pdf

Giving you the first comprehensive presentation of the ground breaking research undertaken at Heriot Watt University, with Research Council and industrial funding, this book brings a new perspective to the design of building drainage and vent systems. It provides the building services community with clear and verifiable design methods that will be robust enough to meet challenges such as climate change and water conservation; population migration to the mega cities of the developing world, and the consequent pressures of user concentration; the rise of the prestige building and the introduction of new appliances and control strategies. These all combine to make traditional codified design guidance insufficient. Many assumptions in existing codes defining the entrained airflows within building drainage vent systems cannot be theoretically supported, so designers concerned with these systems need analysis and simulation capabilities which are at least as reliable as those enjoyed by other building services practitioners. The Method of Characteristics solution techniques which are well established in the pressure surge field are now used to provide solutions for drainage designers. The material is applied to a whole range of abstract scenarios then to a series of real world applications including the forensic modelling of the SARS virus spread within Amoy Gardens in 2003 and the refurbishment of the O2 Dome. Applications to specialised services, including underground station drainage and highly infectious disease treatment facilities are discussed and demonstrated, alongside the use of design and simulation techniques in support of product development. Aimed at both professional and academic users, this book serves both as a design aid and as a core text for specialist masters courses in public health and building services engineering.

Author : Zh. Zhang
Publisher : Springer Nature
Page : 322 pages
File Size : 41,9 Mb
Release : 2020-02-06
Category : Technology & Engineering
ISBN : 9783030402334

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Hydraulic Transients and Computations by Zh. Zhang Pdf

This book describes the fundamental phenomena of, and computational methods for, hydraulic transients, such as the self-stabilization effect, restriction of the Joukowsky equation, real relations between the rigid and elastic water column theories, the role of wave propagation speed, mechanism of the attenuation of pressure fluctuations, etc. A new wave tracking method is described in great detail and, supported by the established conservation and traveling laws of shockwaves, offers a number of advantages. The book puts forward a novel method that allows transient flows to be directly computed at each time node during a transient process, and explains the differences and relations between the rigid and elastic water column theories. To facilitate their use in hydropower applications, the characteristics of pumps and turbines are provided in suitable forms and examples. The book offers a valuable reference guide for engineers and scientists, helping them make transient computations for their own programming, while also contributing to the final standardization of methods for transient computations.

Author : E. Shashi Menon
Publisher : CRC Press
Page : 304 pages
File Size : 48,9 Mb
Release : 2004-06-21
Category : Science
ISBN : 020302138X

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Liquid Pipeline Hydraulics by E. Shashi Menon Pdf

Avoiding lengthy mathematical discussions, this reference specifically addresses issues affecting the day-to-day practices of those who design, operate, and purchase liquid pipelines in the oil, water, and process industries. Liquid Pipeline Hydraulics supplies an abundance of practical examples and applications for an in-depth understanding of liq

Author : Naim Hamdia Afgan
Publisher : Chem/Mats-Sci/E
Page : 1128 pages
File Size : 53,7 Mb
Release : 1988
Category : Hydraulic transients
ISBN : UCAL:B4398511

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Transient Phenomena in Multiphase Flow by Naim Hamdia Afgan Pdf

Author : Constantine D. Rakopoulos,Evangelos G. Giakoumis
Publisher : Springer Science & Business Media
Page : 408 pages
File Size : 43,8 Mb
Release : 2009-03-10
Category : Technology & Engineering
ISBN : 9781848823754

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Diesel Engine Transient Operation by Constantine D. Rakopoulos,Evangelos G. Giakoumis Pdf

Traditionally, the study of internal combustion engines operation has focused on the steady-state performance. However, the daily driving schedule of automotive and truck engines is inherently related to unsteady conditions. In fact, only a very small portion of a vehicle’s operating pattern is true steady-state, e. g. , when cruising on a motorway. Moreover, the most critical conditions encountered by industrial or marine engines are met during transients too. Unfortunately, the transient operation of turbocharged diesel engines has been associated with slow acceleration rate, hence poor driveability, and overshoot in particulate, gaseous and noise emissions. Despite the relatively large number of published papers, this very important subject has been treated in the past scarcely and only segmentally as regards reference books. Merely two chapters, one in the book Turbocharging the Internal Combustion Engine by N. Watson and M. S. Janota (McMillan Press, 1982) and another one written by D. E. Winterbone in the book The Thermodynamics and Gas Dynamics of Internal Combustion Engines, Vol. II edited by J. H. Horlock and D. E. Winterbone (Clarendon Press, 1986) are dedicated to transient operation. Both books, now out of print, were published a long time ago. Then, it seems reasonable to try to expand on these pioneering works, taking into account the recent technological advances and particularly the global concern about environmental pollution, which has intensified the research on transient (diesel) engine operation, typically through the Transient Cycles certification of new vehicles.

Author : Qianfan Xin
Publisher : Elsevier
Page : 1088 pages
File Size : 54,8 Mb
Release : 2011-05-26
Category : Technology & Engineering
ISBN : 9780857090836

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Diesel Engine System Design by Qianfan Xin Pdf

Diesel Engine System Design links everything diesel engineers need to know about engine performance and system design in order for them to master all the essential topics quickly and to solve practical design problems. Based on the author's unique experience in the field, it enables engineers to come up with an appropriate specification at an early stage in the product development cycle. Links everything diesel engineers need to know about engine performance and system design featuring essential topics and techniques to solve practical design problems Focuses on engine performance and system integration including important approaches for modelling and analysis Explores fundamental concepts and generic techniques in diesel engine system design incorporating durability, reliability and optimization theories

Author : Robert W. Bruce
Publisher : CRC Press
Page : 1139 pages
File Size : 53,5 Mb
Release : 2012-07-06
Category : Science
ISBN : 9781420069099

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Handbook of Lubrication and Tribology, Volume II by Robert W. Bruce Pdf

Since the publication of the best-selling first edition, the growing price and environmental cost of energy have increased the significance of tribology. Handbook of Lubrication and Tribology, Volume II: Theory and Design, Second Edition demonstrates how the principles of tribology can address cost savings, energy conservation, and environmental pr

Author : Anonim
Publisher : Unknown
Page : 710 pages
File Size : 44,5 Mb
Release : 1982
Category : Large space structures (Astronautics)
ISBN : UIUC:30112075687852

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Technology for Large Space Systems by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 524 pages
File Size : 55,9 Mb
Release : 1993
Category : Geological surveys
ISBN : STANFORD:36105006267756

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U.S. Geological Survey Open-file Report by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 1028 pages
File Size : 45,5 Mb
Release : 1994
Category : Aeronautics
ISBN : UOM:39015030249083

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Scientific and Technical Aerospace Reports by Anonim Pdf

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Author : Inderdeep Singh,Pramendra Kumar Bajpai,Kuldeep Panwar
Publisher : Springer Nature
Page : 159 pages
File Size : 49,8 Mb
Release : 2019-09-10
Category : Technology & Engineering
ISBN : 9789813290990

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Trends in Manufacturing Processes by Inderdeep Singh,Pramendra Kumar Bajpai,Kuldeep Panwar Pdf

This book comprises select proceedings of the International Conference on Futuristic Trends in Materials and Manufacturing (ICFTMM 2018). The volume covers current research findings in conventional and non-conventional manufacturing processes. Different fabrication processes of polymer based materials and advanced materials are discussed in this book. In addition, the book also discusses computer based manufacturing processes, and sustainable and green manufacturing technologies. The contents of this book will be useful for students, academicians, and researchers working in the field of manufacturing related fields.

Author : Anonim
Publisher : Academic Press
Page : 465 pages
File Size : 49,7 Mb
Release : 1959-01-01
Category : Science
ISBN : 008085981X

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Solid State Physics by Anonim Pdf

Solid State Physics, Part A

Author : Jörn Bonse,Dirk Spaltmann
Publisher : MDPI
Page : 190 pages
File Size : 49,6 Mb
Release : 2020-11-25
Category : Technology & Engineering
ISBN : 9783039435234

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Laser-Induced Periodic Surface Nano- and Microstructures for Tribological Applications by Jörn Bonse,Dirk Spaltmann Pdf

This book is the printed edition of the Special Issue published in Materials. The book provides an overview of current international research activities in the field of friction and wear management through the laser processing of periodic surface micro- and nanostructures for technical and medical applications. Contributions of renowned scientists from academia and industry provide a bridge between the fields of tribology and laser material processing in order to foster current knowledge and present new ideas for future applications and new technologies.