Zobrazeno 1 - 10
of 206
pro vyhledávání: '"Alan Palazzolo"'
Publikováno v:
Journal of Low Frequency Noise, Vibration and Active Control, Vol 40 (2021)
Drillstring–borehole interaction can produce severely damaging vibrations. An example is stick–slip vibration, which negatively affects drilling performance, tool integrity and completion time, and costs. Attempts to mitigate stick–slip vibrati
Externí odkaz:
https://doaj.org/article/a64ec0a9be774d10aa3c4bba6c772686
Publikováno v:
Shock and Vibration, Vol 1, Iss 5, Pp 473-484 (1994)
This article presents a novel means for suppressing gear mesh related vibrations. The key components in this approach are piezoelectric actuators and a high-frequency, analog feed forward controller. Test results are presented and show up to a 70% re
Externí odkaz:
https://doaj.org/article/44859fba44f9477c9424bd9bf68888b6
Publikováno v:
Journal of Sound and Vibration. 544:117391
Autor:
Jongin Yang, Alan Palazzolo
Publikováno v:
Mechanical Systems and Signal Processing. 185:109827
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 144
Hirth coupling transmits high torques in the rotating assemblies of compressors and turbines. Their mating surface contacts cause local changes in lateral shaft stiffness. This is affected by the teeth geometry, contact surface area, coupling preload
Publikováno v:
Tribology International. 177:107954
Publikováno v:
Journal of Tribology. 144
This paper investigates the journal asymmetric temperature-induced thermal bow vibration of a rotor, as supported by a flexure pivot journal bearing (FPJB). Thermal bow-induced vibration, known as the Morton effect (ME), is caused by non-uniform visc
Autor:
Timothy Conover, Guruprasad A. Giridharan, Shreyas Safare, Alan Palazzolo, Michael Neary, Mark D. Rodefeld, Richard Figliola
Publikováno v:
ASAIO Journal. 68:11-12
Autor:
Jongin Yang, Alan Palazzolo
Publikováno v:
Journal of Tribology. 144
The Morton effect (ME) occurs when a bearing journal experiences asymmetric heating due to synchronous vibration, resulting in thermal bowing of the shaft and increasing vibration. An accurate prediction of the journal's asymmetric temperature distri