Nonlinear model identification of oil-lubricated tilting pad bearings

摘要: Abstract A new method of modeling and identification weak nonlinear behavior tilting pad journal bearings (TPJBs) is proposed. novel model a TPJB based on Taylor series expansion oil film forces, consistent with the transient form Reynolds differential equation (the original model), developed. The least mean square technique in time domain employed to identify coefficients model. terms dominant effects forces are chosen using subset selection method. Good agreement achieved between predicated response obtained from one evaluated through identified