Zobrazeno 1 - 10
of 259
pro vyhledávání: '"Paul E. Allaire"'
Autor:
Laurence F. Wagner, Paul E. Allaire
Publikováno v:
Lubricants, Vol 10, Iss 2, p 20 (2022)
Tribologists have generally accepted that the dynamic modeling of tilting-pad journal bearings (TPJB) must consider the frequency dependency of the dynamic properties. Industrial compressors, turbines, and other rotating machines are subjected to ins
Externí odkaz:
https://doaj.org/article/f6b97831066e4854b7ea3f578e1569b2
Publikováno v:
International Journal of Rotating Machinery, Vol 2011 (2011)
A detailed description of a new centrifugal compressor surge test rig is presented. The objective of the design and development of the rig is to study the surge phenomenon in centrifugal compression systems and to investigate a novel method of surge
Externí odkaz:
https://doaj.org/article/cdffcb9702ad4ae2901cf753bad5dce4
Publikováno v:
Tribology International. 123:26-36
The static and dynamic characteristics of tilting-pad thrust bearing (TPTB) considering the lubricant viscosity-temperature effect and pad elastic deformation are first analyzed by theoretical thermalelastohydrodynamic (TEHD) modeling. The TPTB test
Autor:
Carson S. Fox, Steven G. Chopski, Paul E. Allaire, Robert M. Mentzer, Joseph W. Rossano, Nohra M. Murad, Francisco A. Arabia, Amy L. Throckmorton
Publikováno v:
Artificial Organs. 42:500-509
Clinical studies using total artificial hearts (TAHs) have demonstrated that pediatric and adult patients derive quality-of-life benefits from this form of therapy. Two clinically-approved TAHs and other pumps under development, however, have design
Publikováno v:
Tribology International. 102:182-197
The introduction of this paper serves as a review of previous studies on extending the Reynolds equation. This paper develops an extended Reynolds equation and includes turbulence and inertia effects. Use of low viscosity lubricants and/or high rotat
Publikováno v:
Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines.
Hydrodynamic thrust bearings are vital components of rotating machinery and often undergo high axial loads and temperatures. High loads and the consequent shear heating result in high temperature development and viscosity drop of the lubricant. This
Publikováno v:
Mechanical Systems and Signal Processing. :536-554
Centrifugal compressor testing with magnetic bearing excitations is the last step to assure the compressor rotordynamic stability in the designed operating conditions. To meet the challenges of stability evaluation, a new method combining the rationa
Autor:
Paul E. Allaire, Saeid Dousti
Publikováno v:
Tribology International. 140:105858
A comprehensive thermohydrodynamic model of single-film and double-film floating disk thrust bearings is presented. Reynolds and energy equations are solved and a modified groove mixing model is used to predict the oil leading edge temperature. A mul
Publikováno v:
Journal of Cardiac Surgery. 30:856-864
We present a review of the evolution of total artificial hearts (TAHs) and new directions in development, including the coupling of VADs as biventricular TAH support.