TY - JOUR
T1 - FLUID FILM LUBRICATION WITH NONLINEAR FOUR-ELEMENT VISCOELASTIC FLUIDS (FLOW CHARACTERISTICS, A MODIFIED REYNOLDS EQUATION AND ITS APPLICATION TO PARALLEL CIRCULAR SQUEEZE BEARINGS).
AU - Hayashi, Hirotsugu
AU - Tomioka, Jun
AU - Wada, Sanae
PY - 1987
Y1 - 1987
N2 - The objective of this study is to establish an analytical procedure for viscoelastic fluid film lubrication based on a nonlinear four-element model, which should apply to lubricating oils containing a large quantity of high molecular-weight polymers. It is made clear from the flow characteristic test that the viscoelastic behavior of such lubricants is represented by a rheology equation based on a four-element model which consists of two nonlinear dashpots and two nonlinear springs. A modified Reynolds equation for finite-width bearings is derived by employing the nonlinear rheology equation. The effects of nonlinear viscoelastic characteristics on the film pressure are then studied with a parallel circular squeeze bearing, and it is shown that the experimental results agree well with the theoretical predictions.
AB - The objective of this study is to establish an analytical procedure for viscoelastic fluid film lubrication based on a nonlinear four-element model, which should apply to lubricating oils containing a large quantity of high molecular-weight polymers. It is made clear from the flow characteristic test that the viscoelastic behavior of such lubricants is represented by a rheology equation based on a four-element model which consists of two nonlinear dashpots and two nonlinear springs. A modified Reynolds equation for finite-width bearings is derived by employing the nonlinear rheology equation. The effects of nonlinear viscoelastic characteristics on the film pressure are then studied with a parallel circular squeeze bearing, and it is shown that the experimental results agree well with the theoretical predictions.
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U2 - 10.1299/jsme1987.30.623
DO - 10.1299/jsme1987.30.623
M3 - Article
AN - SCOPUS:0023330328
VL - 30
SP - 623
EP - 631
JO - JSME International Journal
JF - JSME International Journal
SN - 0913-185X
IS - 262
ER -