Abstract: The paper presents the results of an experimental investigation in which the damping coefficients of a squeeze-film bearing are obtained from impedance measurements. For various force levels, and ...

Abstract: The accuracy of the influence coefficient method is experimentally investigated. The influence of the number of measurement transducers, their location, and type is demonstrated on a flexible ...

Abstract: Experiments have been conducted to evaluate a supplementary method for balancing lightly damped rotors. The rotor, while running, is excited by an impact generator, and the response is measured ...

Abstract: The paper presents the results of systematic experiments conducted on a 100mm diameter cylindrical bearing having a L/D = 0.55 and a C/R = 1.5 × 10−3 . Joint measurements are taken of ...

Abstract: To test the validity of the theory, described in Part I of this investigation, calculations are performed for a cylindrical, two-axial groove journal bearing over a range of loads and speeds. ...

Abstract: The accuracy of the conventional method of field balancing is investigated. A test rotor is provided with a known set of unbalance weights and is subsequently field-balanced by the trial-weight ...

Abstract: Experiments are conducted on two rotors, weighing 40 and 187.5 kg, respectively, and supported in cylindrical bearings with two axial grooves. The journal position in the bearing is measured ...

Abstract: The paper presents the results of an experimental investigation where membrane transducers in the journal bearing wall are used to measure the dynamic oil-film pressures caused by rotor unbalance ...