... Andrés , L. , and Delgado , A. , 2007 , “ Identification of Force Coefficients in a Squeeze Film Damper With a Mechanical Seal. Part I—Unidirectional Load Tests ,” ASME J. Eng. Gas Turbines Power 0742-4795 , 129 ( 3 ), pp. 858 – 864 . 10.1115/1.2436571 San Andrés , L...

... stiffnesses, thus promoting dynamic stability without a penalty in increased leakage. However, extensive experimental results in the archival literature demonstrate that grooves do not reduce the force coefficients as much as theory predicts. A common assumption is that deep grooves do not influence a damper...

...Luis San Andrés; Adolfo Delgado The damping capability of squeeze film dampers (SFDs) relies on adequate end sealing to prevent air ingestion and entrapment. The paper presents the parameter identification procedure and force coefficients of a test SFD featuring a mechanical seal that effectively...

...Bugra H. Ertas; John M. Vance The objective of the following work was to determine frequency-dependent rotordynamic force coefficients for a new annular gas damper seal design. Both rotating and nonrotating experimental tests are presented for inlet pressures at 1000 psig ( 69 bar ) , a frequency...