A Mixed Lubrication Model of Liquid/gas Mechanical Face Seals PDF Download
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Author: Bo Ruan
Publisher:
ISBN:
Category : Equations of motion
Languages : en
Pages : 286
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Book Description
Author: Bo Ruan
Publisher:
ISBN:
Category : Equations of motion
Languages : en
Pages : 286
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Book Description
Author: Alan O. Lebeck
Publisher: John Wiley & Sons
ISBN: 9780471515333
Category : Technology & Engineering
Languages : en
Pages : 804
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Book Description
Examines the fundamentals and practice of both the design and operation of face seals, ranging from washing machines to rocket engine turbopumps. Topics include materials, tribology, heat transfer and solid mechanics. A variety of simple and complex models are proposed and evaluated and specific problems such as heat checking, blistering and instability are considered. Offers 64 tables and 364 references plus useful recommendations regarding the future of seal design.
Author: Bai Shaoxian
Publisher: Academic Press
ISBN: 0128172916
Category : Technology & Engineering
Languages : en
Pages : 238
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Book Description
Gas Thermohydrodynamic Lubrication and Seals provides contemporary theory and methods for thermo-hydrodynamic lubrication analysis in the design of gas bearings and seals. The title includes information on gas state equations and gas property, derivation of gas thermohydrodynamic lubrication equations, the theory of isothermal gas lubrication, thermal gas lubrication of rigid surfaces, gas thermoelastic hydrodynamic lubrication of face seals, vapor-condensed gas lubrication of face seals, experimental methods, and the design of gas face seals. Readers will find state-of-the-art, practical knowledge based on fifty years of research and application. Describes thermohydrodynamic lubrication analysis for the design of gas bearings and seals Considers the increased operational speed, pressure and temperature of mechanical equipment in relation to gas bearings and seals Describes multi-field coupled gas lubrication theory and analytical methods Provides a model and detailed data on the lubricating properties of typical gas bearings and seals Gives comprehensive coverage of the field based on a half-century of research and application
Author: B. S. Nau
Publisher: Air Science Company
ISBN: 9780947711702
Category : Science
Languages : en
Pages : 454
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Book Description
Very Good,No Highlights or Markup,all pages are intact.
Author: Lawrence P. Ludwig
Publisher:
ISBN:
Category : Lubrication and lubricants
Languages : en
Pages : 44
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Book Description
Author: B. S. Nau
Publisher: Air Science Company
ISBN: 9780947711702
Category : Science
Languages : en
Pages : 452
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Book Description
Very Good,No Highlights or Markup,all pages are intact.
Author: David Keith Matthes
Publisher:
ISBN:
Category : Sealing
Languages : en
Pages : 127
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Book Description
The study of mechanical seal interfacial wear was made using dry nitrogen gas as the sealed fluid and both industrially pure nickel and some nickel-chromium alloys were used as seal ring materials. The experimentally produced wear reactions were studied metallurgically using optical and electron microscopy. For optical investigations, each seal ring was cut at an angle of five degrees to the worn surface in order to elongate the wear impressions. Surface replicas and chemically thinned sections were produced for electron microscopic studies. The data gathered for detailed investigation were photomicrographs of selected wear areas. Stereographic pairs of most wear areas were taken to aid in documenting the surface irregularities observed, by producing a three dimensional effect to the viewer. Photomicrographs of the thin films were taken to make possible the study of the sub-structure of the material immediately below the wear track. (Author).
Author: Robert W. Bruce
Publisher: CRC Press
ISBN: 142006908X
Category : Technology & Engineering
Languages : en
Pages : 1173
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Book Description
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 protection. This second edition provides a thorough treatment of established knowledge and practices, along with detailed references for further study. Written by the foremost experts in the field, the book is divided into four sections. The first reviews the basic principles of tribology, wear mechanisms, and modes of lubrication. The second section covers the full range of lubricants/coolants, including mineral oil, synthetic fluids, and water-based fluids. In the third section, the contributors describe many wear- and friction-reducing materials and treatments, which are currently the fastest growing areas of tribology, with announcements of new coatings, better performance, and new vendors being made every month. The final section presents components, equipment, and designs commonly found in tribological systems. It also examines specific industrial areas and their processes. Sponsored by the Society of Tribologists and Lubrication Engineers, this handbook incorporates up-to-date, peer-reviewed information for tackling tribological problems and improving lubricants and tribological systems. The book shows how the proper use of generally accepted tribological practices can save money, conserve energy, and protect the environment.
Author: Robert W. Bruce
Publisher: CRC Press
ISBN: 1420069098
Category : Science
Languages : en
Pages : 1139
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Book Description
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: A. O. Lebeck
Publisher:
ISBN:
Category :
Languages : en
Pages : 190
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Book Description
In this report a model is developed which describes lubrication effects caused by circumferential waviness in face seals. This two dimensional model accounts for the effects of hydrodynamic and hydrostatic pressure, fluid film cavitation, surface roughness, asperity contact and load support, and elastic deflection. The fraction of load supported by fluid pressure, relative wear rate, pressure distribution, friction, and leakage are predicted given the waviness, pressure, speed, material, geometry, viscosity, and surface roughness. The model is applicable to heavily loaded, low viscosity seals where partial contact is expected. The results from the model have been compared to available experimental results. The model shows that the magnitude of surface roughness is the most important parameter determining the extent of hydrodynamic lubrication. Seal faces with low roughness are more likely to display hydrodynamic effects than seal faces having larger roughness.
