نتایج جستجو برای: bearing system

تعداد نتایج: 2294339  

In this paper energy method is used to calculate rotor response with loose rotating disk on it. System equation of motion is obtained based on energy method and Lagrange equation. Mathematical modeling of loose disk in a rotor bearing system has resulted in terms similar to unbalance and gyroscopic effect in the system equation of motion. The effect of loose disk axial position and orthotropic ...

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 1984

Journal: : 2023

Rotating fan shaft system was investigated experimentally and theoretically to study its dynamic performance. The type of oil used for the bearing taken in consideration during experimental program .Three types were used, SAE 40, 50 degraded oil. During experiments, blades stagger angle changed through angles (20˚, 30˚, 40˚, 50˚). rotational speed also range (0-3000 rpm). All these parameters h...

رهگشای, محمد , شفائی مقدم , هادی , منصف, ایمان ,

In Khoy ophiolitic massif (NW of Iran) three types of quartzite and also quartz bearing veins can be distinguished: massive quartzite, quartz bearing veins in the amphibolites and siliceous veins in the radiolarian cherts. Massive quartzites contain quartz porphyroclasts associated with very   small- deformed quartz neoblasts. These quartzites are deformed in regime I and recrystallized as grai...

This paper presents the effect of preload on static and dynamic performance characteristics of several gas-lubricated noncircular journal bearing configurations. The linearized system approach using finite element method is used to obtain both steady state and dynamic characteristics. The results of the investigation shows that preload has a significant effect on frictional power loss and the ...

Journal: :IEEE Transactions on Applied Superconductivity 2007

Journal: :Shock and Vibration 2022

Early diagnosis of failures can prevent financial losses and industry downtime. In this article, the author proposes an early fault technique for rotor-bearing faults. The proposed is based on recognition sound signals. measured analyzed three states system: system under normal operating conditions, with faulty bearings, rotor friction. original feature extraction method described, namely, 1/3 ...

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