Results 1 to 10 of about 249 (182)

Dynamic Characteristic Analysis of Elastic Support and Squeeze Film Damper Cylindrical Roller Bearing under Unsteady Condition

Jixie chuandong, 2021
The bearing in the main shaft system of the aero-engine is often used in combination with elastic support and squeeze film damper （SFD） to reduce vibration.
Yulei Xia, Yongcun Cui, Xiaofang Jia, Kaiwen Deng, Si'er Deng   +4 more
doaj  

Nonlinear Transient Modeling and Design of Turbocharger Rotor/Semi-Floating Bush Bearing System

Lubricants, 2017
This work presents the bearing design and analysis of radial semi-floating bush oil lubricated bearings for a typical industrial turbocharger configuration.
Jianming Cao, Saeid Dousti, Paul Allaire, Tim Dimond   +3 more
doaj   +1 more source

Influence of the Radial Clearance of a Squeeze Film Damper on the Vibratory Behavior of a Single Spool Gas Turbine Designed for Unmanned Aerial Vehicle Applications

Shock and Vibration, 2017
This study presents a numerical investigation using the finite element method on the vibratory behavior of a single spool gas turbine designed for unmanned aerial vehicle applications. The shaft of the rotor-bearing system is supported on a front bearing
Geraldo Creci, José Orlando Balastrero, Sidney Domingues, Luis Vanderlei Torres, João Carlos Menezes   +4 more
doaj   +1 more source

Investigation about Electrorheological Squeeze Film Damper Applied to Active Control of Rotor Dynamic

International Journal of Rotating Machinery, 1997
Electrorheological (ER) fluids, discovered in 1947 by W. WINSLOW, are concentrated suspensions of solid particles in an oily base liquid. Exposed to a strong electric field, their resistance to flow increases very greatly and this change is progressive ...
Benjamin Pecheux, Olivier Bonneau, Jean Frêne   +2 more
doaj   +1 more source

Numerical computation of the damping and stiffness coefficients of the classical and magnetorheological squeeze film damper

MATEC Web of Conferences, 2018
Technological solution, frequently used to suppress vibrations in rotating machines, consists in adding damping devices between the rotor and its frame.
Ferfecki Petr, Zapoměl Jaroslav, Šofer Michal, Pochylý František, Fialová Simona   +4 more
doaj   +1 more source

Wafer‐Scale Atomically‐Thin Gold: Transferable Platform for Flexible Optoelectronics, Thermal Management and Bio‐Interfaces

Advanced Science, EarlyView.
Combining template stripping with a graphene‐inspired transfer yields continuous, transferable gold films at 6‐inch wafer scale with thicknesses approaching the atomic limit. The atomically smooth, near‐bulk‐quality films offer above 86% transmittance and sub‐20 Ω/square sheet resistance, serving as a universal platform for flexible optoelectronics ...
Dmitry Yakubovsky, Mikhail Mironov, Georgy Ermolaev, Aleksandr Khrebtov, Aleksandr Slavich, Prashant Narute, Pritom Chowdhury, Roman Kirtaev, Igor Khramtsov, Anton Minnekhanov, Gleb Tselikov, Dmitriy Grudinin, Maria Sidorova, Nikolay Pak, Pavel Maslov, Andrey Vyshnevyy, Hongkai Zhou, Vasyl G. Kravets, Alexander N. Grigorenko, Ivan Kruglov, Nikita Orekhov, Dmitry Kireev, Aleksey Arsenin, Kostya S. Novoselov, Valentyn Volkov   +24 more
wiley   +1 more source

Research on the Dynamic Characteristics of High-Speed Rotors Supported by a Double Layer Squeeze Film Damper-Bearing Composite Structure

IEEE Access
In this study, a dynamic model for a damper-bearing-rotor system featuring a novel double layer squeeze film damper-bearing composite structure was developed, addressing the limitations of conventional single layer dampers in providing sufficient ...
Wei Wang, Weimin Wang, Weibo Li, Jiale Wang, Tianqing Li   +4 more
doaj   +1 more source

Static Stiffness Parametric Studies of Newly Conceptualized Inter Shaft Squeeze Film Damper (ISSFD) Rings

International Journal of Engineering Materials and Manufacture, 2019
Most of the modern gas turbine engine designs requiring super critical operations will often have squeeze film dampers (SFDs) on the high pressure spool bearing as an inevitable feature.
SHIVAPRASAD MALLAIAH HIRENALLUR, GIRIDHARA G GAIKWAD, ARUNKUMAR V   +2 more
doaj   +1 more source

On Dynamic Characteristics of ER Fluid Squeeze Film Damper

JSME international journal. Ser. C, Dynamics, control, robotics, design and manufacturing, 1995
This paper deals with an application of Electrorheological (ER) fluid to a squeeze film damper which enables reduction of whirling amplitude of rotor by adjusting the damping property at each rotating speed. An experimental model composed of a flexible shaft and a controllable ER squeeze film damper was constructed and its performance was studied under
Morishita, Shin, An, Young Kong
openaire   +3 more sources

Real‐Time Investigation of Interfacial Evolution in Electrochemical Energy Storage Systems via EQCM

Advanced Science, EarlyView.
Understanding the electrode/electrolyte interface (EEI) is crucial for supercapacitors and batteries. EQCM, by enabling real‐time monitoring of mass changes during charge–discharge cycles, has evolved into a vital method for analysis of EEI. It provides important insights into charge‐storage mechanisms, electrode structural evolution, ion‐transfer ...
Zixuan Wang, Situo Cheng, Guang Feng
wiley   +1 more source