Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Lloyd E. Barrett"'
Publikováno v:
International Journal of Rotating Machinery, Vol 7, Iss 4, Pp 223-236 (2001)
Unbalance response and stability analyses of a flexible rotor on three lobe journal bearings on flexible supports are presented. The influence of the support structure was included in the analyses using polynomial transfer functions. These transfer f
Externí odkaz:
https://doaj.org/article/27d64a619fee45d6ac8a4080252126b4
Publikováno v:
Mechanical Systems and Signal Processing. 29:90-106
When predicting the stability of rotors supported by tilting pad journal bearings, it is currently debated whether or not the bearings should be represented with frequency dependent dynamics. Using an experimental apparatus, measurements of pad tempe
Publikováno v:
Tribology Transactions. 48:362-369
A recent trend in industry is to use directly lubricated bearings with reduced oil flow to achieve minimum power consumption. However, too much oil flow reduction would cause bearing failure. This work presents a comprehensive thermohydrodynamic algo
Publikováno v:
Australian Journal of Mechanical Engineering. 2:143-150
This paper presents a comparison of the measured dynamic coefficients, and the measured static characteristics for a tilting pad journal bearing operating at different load angles. Load angles of 0 degrees, 18 degrees, 36 degrees, 54 degrees and 72 d
Publikováno v:
Tribology Transactions. 48:283-288
Results are described for experiments aimed at determining the effects of increased speed and load on ball-and-socket pivots in tilting-pad journal bearings. Experimental measurements of journal static operating position were made for a 70-mm (2.75-i
Publikováno v:
Tribology Transactions. 47:585-593
Publikováno v:
Tribology Transactions. 47:576-584
This article presents the measured static characteristics for five tilting-pad journal bearings with a range of preload factors. The bearings had five shoes with static forces applied both on the pad and between pads. The journal diameter was 70 mm,
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 124:369-374
A laboratory rotor, representing a scaled-down model of a three-stage compressor supported by fluid film bearings on anisotropic flexible supports was analyzed. The support characteristics were measured at the bearing locations by exciting the bearin
Publikováno v:
International Journal of Rotating Machinery, Vol 8, Iss 1, Pp 27-33 (2002)
The measured performances of axial groove and preloaded three-lobe journal bearings are compared with the predicted performance. Operating eccentricity and dynamic coecients were found for dierent shaft speeds and various steady loads. Numerical
Publikováno v:
Tribology Transactions. 44:575-582
The independent effects of excitation frequency and excitation magnitude on experimentally derived bearing coefficients for a highly preloaded three-lobe journal bearing were studied. The effect of excitation frequency was determined by applying exte