Results 81 to 90 of about 85,414 (206)

Dynamic Characteristics and Stability Analysis of Space Shuttle Main Engine Oxygen Pump [PDF]

open access: yes, 1991
The dynamic characteristics of the Space Shuttle high pressure oxygen pump are presented. Experimental data is presented to show the vibration spectrum and response under actual engine operation and also in spin pit testing for balancing. The oxygen pump
Branagan, Lyle, Gunter, Edgar J.
core   +1 more source

Rotor vibration caused by external excitation and rub [PDF]

open access: yes, 1982
For turbomachinery with low natural frequencies, considerations have been recently required for rotor vibrations caused by external forces except unbalance one, such as foundation motion, seismic wave, rub and so forth.
Kaga, M.   +3 more
core   +1 more source

Symbolical Analysis of RF-Network Problems using Mason’s Rule [PDF]

open access: yes, 2012
We briefly review Mason’s rule for the computation of RF-network problems and show its implementation into the software package freeMASON. This tool solves symbolically Mason’s rule for any wave quantity and allows to derive analytical expressions as ...
Schwerg, N.
core   +1 more source

Respons Getaran Non-Linier pada Sistem Poros-rotor Bagian II: Kaji Banding Metode Runge-Kutta dan Metode Deret Fungsional Volterra

open access: yesJournal of Mathematical and Fundamental Sciences, 2019
Sari. Bantalan gelinding digunakan secara luas sebagai pemompa pada setiap mesin rotasi. Oleh karena itu, karakteristik dinamina suatu bantalan harus dapat diketahui dengan baik.
Tegoeh Tjahjowidodo   +2 more
doaj  

Instabilities of geared couplings: Theory and practice [PDF]

open access: yes, 1982
The use of couplings for high speed turbocompressors or pumps is essential to transmit power from the driver. Typical couplings are either of the lubricated gear or dry diaphragm type design.
Kirk, R. G., Mondy, R. E., Murphy, R. C.
core   +1 more source

Stabilization of aerodynamically excited turbomachinery with hydrodynamic journal bearings and supports [PDF]

open access: yes
A method of analyzing the first mode stability and unbalance response of multimass flexible rotors is presented whereby the multimass system is modeled as an equivalent single mass modal model including the effects of rotor flexibility, general ...
Barrett, L. E., Gunter, E. J.
core   +1 more source

Asymmetries arising from the space-filling nature of vascular networks

open access: yes, 2015
Cardiovascular networks span the body by branching across many generations of vessels. The resulting structure delivers blood over long distances to supply all cells with oxygen via the relatively short-range process of diffusion at the capillary level ...
Hunt, David, Savage, Van M.
core   +1 more source

The Rocketdyne Multifunction Tester. Part 2: Operation of a Radial Magnetic Bearing as an Excitation Source [PDF]

open access: yes, 1991
The operation of the magnetic bearing used as an excitation source in the Rocketdyne Multifunction Tester is described. The tester is scheduled for operation during the summer of 1990.
Hawkins, L. A.   +2 more
core   +1 more source

Three-phase inverter-connected DG-units and voltage unbalance [PDF]

open access: yes, 2011
Degroote, Lieven   +4 more
core   +2 more sources

induction motor, unbalance, electrical loss, finite element method.

open access: yesIngeniería e Investigación, 2008
This paper shows the pattern of a 7.5 kW squirrel-cage induction motor’s electrical loss in balanced and unbalanced conditions, modelling the motor using the finite element method and comparing the results with experimental data obtained in the ...
Camilo Andrés Cortés   +3 more
doaj  

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