Measurements of unbalance response in a squeeze film damper test rotor-kit /
apparatus and instrumentation are fully described. Results
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1995.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | apparatus and instrumentation are fully described. Results coefficients for the offcentered cases were estimated (in the compare well with the experimental data. The rotor deflected damper (SFD) rotorkit are presented. The rotor-SFD test distribution plots from a "short bearing" model did not distribution was experimentally measured at the top of the equations for the centered and non-cavitated SFD. Damping experiments were performed at room temperature and at an oil extract the damping coefficients at the damper support by a from the measurements of the system unbalance response are However, air entrainment was clearly observed while passing However, the last case studied Ooumal offcentered at 60% of inlet pressure of 6.9 kPa. The cascade plots of the journal at 30% and 60% of the radial clearance. Different masses of unbalance are used for each case . All the Measurements of the unbalance response in a squeeze film model with the experimental results. The pressure no cavitation in the damper. The comparison of these last presented for three cases: centered journal, offcentered results was extremely good. SFD and no oil cavitation was detected from the tests. shapes of the centered unbalance response were calculated speed. A commercial rotordynamics code (PUP) was used to the radial clearance) showed a supersynchronous vibration theoretical damping coefficients were evaluated with through the system resonant speed. Theoretical pressure tracking the unbalance response at about twice the rotational trial and error procedure using the criteria to match the unbalance response show no trace of asynchronous vibrations. using the rotordynamic model to predict the amplitude of vertical direction) from transfer function tests and also vibrations at the SFD location and from these results were calculated using a computer code with the assumption of |
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| Item Description: | "Major subject: Mechanical Engineering". Vita. |
| Physical Description: | xiii, 85 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references. |