Analysis of squeeze film dampers operating with bubbly lubricants Conference Paper

abstract

• Rotor-bearing systems supported on squeeze film dampers (SFDs) show large amplitude vibratory motions when traversing critical speeds. At these operating conditions air is drawn into the damper thin film clearance generating a bubbly mixture with the lubricant and producing SFD forces not readily predictable with currently available analysis. A continuum model is proposed for describing the motion of a bubbly fluid in an open ended SFD operating with circular centered journal orbits. Computed predictions for peak-peak dynamic pressures and fluid film forces agree reasonably well with experimental measurements conducted on a SFD test rig operating with a controlled air in oil mixture. The bubbly flow model provides an initial procedure towards the reliable design of SFDs in actual operating conditions. [S0742-4787(00)02601-1]

authors

• Rajagopal, Kumbakonam
• San Andres, Luis

published proceedings

• JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME

author list (cited authors)

• Tao, L. Y., Diaz, S., San Andres, L., & Rajagopal, K. R.

citation count

• 34

complete list of authors

• Tao, LY||Diaz, S||San Andres, L||Rajagopal, KR

publication date

• January 2000

publisher

• ASME International  Publisher

published in

• Journal of Tribology  Journal

keywords

• 40 Engineering
• 4017 Mechanical Engineering

Digital Object Identifier (DOI)

• 10.1115/1.555344

start page

• 205

end page

• 210

volume

• 122

issue

• 1

URL

• http://dx.doi.org/10.1115/1.555344