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Scuffing Initiation Prediction In A Lubricated Piston Ring Cylinder Liner Contact

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Scuffing Initiation Prediction In A Lubricated Piston Ring Cylinder Liner Contact

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Author : Simona Dahdah
language : en
Publisher:
Release Date : 2022

Scuffing Initiation Prediction In A Lubricated Piston Ring Cylinder Liner Contact written by Simona Dahdah and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with categories.

The piston-ring/cylinder liner (PRCL) contact has an important influence on the friction losses of internal combustion engines (ICE). Hence, the necessity to study the phenomena acting in this contact as well as its lubrication process. In addition, the PRCL may be exposed to scuffing. Scuffing is a failure mode that can appear in lubricated contact with sliding bodies. It is accompanied by temperature and friction increase and vibration. Its occurrence in the ICE is rare but once it initiates, the damage is catastrophic and permanent, thus the importance to predict its initiation. Scuffing is studied through a thermal approach to create a prediction model of its appearance in the PRCL contact. The studied thermal effects are the thermomechanical effect and the Marangoni effect. The first effect causes a surface deformation because of the temperature increase taking place in the contact. This deformation generated an additional load to the contact. The second effect causes oil convection which creates temporarily local starvation. Moreover, a third effect that contributes to scuffing initiation is the ring displacement along the liner. The ring redistributes the oil and helps to avoid starvation. The influence of the problem parameters on these effects is studied to obtain charts presenting the scuffing initiation limit.

23rd International Colloquium Tribology

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Author : Arshia Fatemi
language : en
Publisher: expert verlag
Release Date : 2022-02-14

23rd International Colloquium Tribology written by Arshia Fatemi and has been published by expert verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-02-14 with Technology & Engineering categories.

The conference provides an international exchange forum for the industry and the academia. Leading university researchers present their latest findings, and representatives of the industry inspire scientists to develop new solutions.

Advances In Engine And Powertrain Research And Technology

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Author : Tigran Parikyan
language : en
Publisher: Springer Nature
Release Date : 2022-03-29

Advances In Engine And Powertrain Research And Technology written by Tigran Parikyan and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-03-29 with Technology & Engineering categories.

The book covers a wide range of applied research compactly presented in one volume, and shows innovative engineering solutions for automotive, marine and aviation industries, as well as power generation. While targeting primarily the audience of professional scientists and engineers, the book can also be useful for graduate students, and also for all those who are relatively new to the area and are looking for a single source with a good overview of the state-of-the-art as well as an up-to-date information on theories, numerical methods, and their application in design, simulation, testing, and manufacturing. The readers will find here a rich mixture of approaches, software tools and case studies used to investigate and optimize diverse powertrains, their functional units and separate machine parts based on different physical phenomena, their mathematical representation, solution algorithms, and experimental validation.

Tribology And Dynamics Of Engine And Powertrain

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Author : Homer Rahnejat
language : en
Publisher: Elsevier
Release Date : 2010-09-30

Tribology And Dynamics Of Engine And Powertrain written by Homer Rahnejat and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-09-30 with Technology & Engineering categories.

Tribology, the science of friction, wear and lubrication, is one of the cornerstones of engineering’s quest for efficiency and conservation of resources. Tribology and dynamics of engine and powertrain: fundamentals, applications and future trends provides an authoritative and comprehensive overview of the disciplines of dynamics and tribology using a multi-physics and multi-scale approach to improve automotive engine and powertrain technology. Part one reviews the fundamental aspects of the physics of motion, particularly the multi-body approach to multi-physics, multi-scale problem solving in tribology. Fundamental issues in tribology are then described in detail,from surface phenomena in thin-film tribology, to impact dynamics, fluid film and elastohydrodynamic lubrication means of measurement and evaluation. These chapters provide an understanding of the theoretical foundation for Part II which includes many aspects of the physics of motion at a multitude of interaction scales from large displacement dynamics to noise and vibration tribology, all of which affect engines and powertrains. Many chapters are contributed by well-established practitioners disseminating their valuable knowledge and expertise on specific engine and powertrain sub-systems. These include overviews of engine and powertrain issues, engine bearings, piston systems, valve trains, transmission and many aspects of drivetrain systems. The final part of the book considers the emerging areas of microengines and gears as well as nano-scale surface engineering. With its distinguished editor and international team of academic and industry contributors, Tribology and dynamics of engine and powertrain is a standard work for automotive engineers and all those researching NVH and tribological issues in engineering. Reviews fundamental aspects of physics in motion, specifically the multi-body approach to multi physics Describes essential issues in tribology from surface phenomena in thin film tribology to impact dynamics Examines specific engine and powertrain sub-systems including engine bearings, piston systems and value trains

Piston Ring Scuffing

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Author : Institution of Mechanical Engineers (Great Britain). Tribology Group
language : en
Publisher: Institution of Mechanical Engineers
Release Date : 1976

Piston Ring Scuffing written by Institution of Mechanical Engineers (Great Britain). Tribology Group and has been published by Institution of Mechanical Engineers this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Technology & Engineering categories.