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	Efect of loading force at aerodynamic Půst, Ladislav ; Kozánek, Jan The aerodynamic bearings belong among modern elements of high-speed rotation machinery. Particularly in chemical and food industry, as it excludes the undesirable damage of products by oil. The theoretical solution of bearing dynamic characteristics, including motion of tilting pads, is not yet completely elaborated. This contribution completed the works done in project GACR by a study of influence of loading on dynamic properties and motion of journal at unbalance excitation. Differential equations of motion of the rotor are derived, numerically solved and time histories of journal motion and their plane trajectories are presented. Detailed record
	Pohyb rotoru uloženého v aerodynamických ložiskách Půst, Ladislav ; Šimek, J. ; Kozánek, Jan The tilting pad bearings are very often applied in high speed rotating machines. The exact solution of bearing characteristics, including the motion of tilting pads, is very difficult and not yet completely elaborated. an approximate method for calculattion of rigid rotor motion with large amplitudes limited only by the bearing clearance is presented. The models of stiffness and damping forces valid for the entire area of journal motion in the aerodynamic bearingś clearance are based on the transformation of linear stiffness and damping characteristics calculated for two cases of stationary state and extended to the whole bearing field by using the correction function fc(r). Differential equations of motion of rigid rotor supported on two aerodynamic bearings with proposed nonlinear characteristics are numerically solved and resulting time histories of journal motion, their plane trajectories will be presented. Detailed record
	Analýza dynamických měření aerodynamických ložisek s naklápěcími segmenty Šimek, J. ; Kozánek, Jan ; Veselý, Jan ; Svoboda, R. The aerodynamic tilting-pad bearing stand was equipped with additional sensors and transducers to measure pad tilting and vibration. Some results of the measurement and their comparison with calculated data are presented in the paper. Detailed record

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