Identification of sixteen force coefficients of two journal bearings from impulse responses

The Experimental Identification of the Dynamic Coefficients of two Hydrodynamic Journal Bearings Operating at Constant Rotational Speed and Under Nonlinear Conditions

“…7). The method used for the verification of results is the same as the one proposed by Qiu and Tieu [19]. The force value acting during the experimental research as well as the stiffness and damping characteristics determined on the basis of experimental studies were incorporated into this numerical model.…”

Experimental Study on the Dynamic Performance of Water‐Lubricated Rubber Bearings with Local Contact

“…Pertinent literatures report many identification methods of bearing dynamic characteristic coefficients, which can be divided into stable excitation method [7,8] and transient excitation method [9,10]. The former mainly includes compound excitation method, single-frequency twice excitation method, and multifrequency excitation method.…”

A Test Rig for Evaluating Tilting-Pad Journal Bearing Characteristics

“…The exciting impulses which were produced by two concurrent-controlled electro-magnets were measured by piezoelectric sensors, and the vibration responses are measured by eddy current sensors. The impact excitation method for evaluating sixteen dynamic coefficients of two asymmetric bearings from the impulse responses based on a test rig was introduced by Qiu et al [2]. Zhou [3] used sinusoidal excitation to recognize dynamic coefficients for five-pad TPJBs.…”