1,721,909 research outputs found
Holmes, R, 2787412
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/392990Surname: HOLMES. Given Name(s) or Initials: R. Military Service Number or Last Known Location: 2787412. Missing, Wounded and Prisoner of War Enquiry Card Index Number: SEA-3248.212335
Item: [2016.0049.25283] "Holmes, R, 2787412
Holmes, R P, 414351
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/392985Surname: HOLMES. Given Name(s) or Initials: R P. Military Service Number or Last Known Location: 414351. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 50387.212320
Item: [2016.0049.25278] "Holmes, R P, 414351
Holmes, R, NX25716
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/393005Surname: HOLMES. Given Name(s) or Initials: R. Military Service Number or Last Known Location: NX25716. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 36913.212380
Item: [2016.0049.25298] "Holmes, R, NX25716
Holmes, R F, VX29172
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/393026Surname: HOLMES. Given Name(s) or Initials: R F. Military Service Number or Last Known Location: VX29172. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 14287.212443
Item: [2016.0049.25319] "Holmes, R F, VX29172
Holmes, R B, V325294
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/393020Surname: HOLMES. Given Name(s) or Initials: R B. Military Service Number or Last Known Location: V325294. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 50637.212425
Item: [2016.0049.25313] "Holmes, R B, V325294
Holmes, R S, NX656
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/393012Surname: HOLMES. Given Name(s) or Initials: R S. Military Service Number or Last Known Location: NX656. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 2167.212401
Item: [2016.0049.25305] "Holmes, R S, NX656
Evaluation of various fluid-film models for use in the analysis of squeeze film dampers with a central groove
Full text linkExperimental vibration responses of squeeze film dampers (SFDs) are obtained with four different central groove depths, two types of lubricant and various unbalance levels. Highly non-linear fluid stiffness and damping are observed, the damping being sensitively related to oil viscosity and unbalance. Existing oil film models are applied to predict the SFD behaviour. A special groove-two land model is able to predict the vibration behaviour of a very shallow grooved SFD and the conventional two-land theory is applicable to a SFD with a very deep groove. These observations provide useful guidelines for designing a shallow or deep grooved SFD-rotor assembly
The effect of oil supply and sealing arrangements on the performance of squeeze-film dampers: an experimental study
No full textThe vibration of an aero-engine rotor incorporating two squeeze-film dampers
No full textVirtually all previous research on the squeeze-film damping of rotor assemblies has considered the use of only one damper. However, many aero-engine rotor assemblies have at least two dampers and the interplay between them is an important factor in the overall vibration performance of the rotor. The purpose of this paper is to report results on a test facility which simulates the rotor of an aero-engine of the size used to power an executive jet. It draws general conclusions on the application of two squeeze-film dampers (SFDs) to such a rotor, while in the process qualitatively validating a suggested theoretical model of the SFD. The test facility is a three bearing rigid rotor assembly incorporating two sprung bearing supports, each in series with a weakly sealed squeeze-film damper. A range of practical configurations with different SFD static misalignments is studied. Non-linear jump phenomena and subharmonic resonances are demonstrated both experimentally and theoretically for a range of rotor unbalance. The paper is concerned with predicting and measuring rotor-centre responses and vibration orbits and drawing conclusions that are relevant to the designer. It forms a complement to a previous paper (1) in which spectrum analyses of vibration signatures were made
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