4.7 Article

Theoretical and experimental exploration on the micro asperity contact load ratios and lubrication regimes transition for water-lubricated stern tube bearing

Related references

Note: Only part of the references are listed.
Article Engineering, Mechanical

An investigation on the lubrication characteristics of floating ring bearing with consideration of multi-coupling factors

Zhongliang Xie et al.

Summary: The paper investigates the static and dynamic lubrication parameters of the floating ring bearing (FRB) by proposing modified lubrication models and utilizing multiscale methods to enhance calculation accuracy and efficiency. The study analyzes the influence of various factors on lubrication performances and concludes that the clearance ratio affects the inner oil film while the vertical load influences the bearing's lubrication performances. These conclusions are applicable to similar floating ring bearings.

MECHANICAL SYSTEMS AND SIGNAL PROCESSING (2022)

Article Engineering, Mechanical

Machine learning based prediction of piezoelectric energy harvesting from wake galloping

Chengyun Zhang et al.

Summary: The study investigates the vibration response of wake galloping piezoelectric energy harvesters in different configurations, finding significant impacts of parameters such as upstream obstacle cross-section, equivalent diameter ratio, distance between objects' centers, and velocity span. Machine learning models were trained to predict voltage and maximum displacement values, with gradient boosting regression trees performing optimally in predictions within the test range of parameters.

MECHANICAL SYSTEMS AND SIGNAL PROCESSING (2021)

Article Engineering, Mechanical

Theoretical and experimental investigation on the influences of misalignment on the lubrication performances and lubrication regimes transition of water lubricated bearing

Zhongliang Xie et al.

Summary: This paper investigates the influences of misalignment on the lubrication performances of water lubricated bearing, proposing a modified lubrication model. Results show that misalignment increases maximum pressure and shear stress, decreases minimum film thickness, reduces certain lubrication regions, ultimately deteriorating lubrication performances on the interface.

MECHANICAL SYSTEMS AND SIGNAL PROCESSING (2021)

Article Engineering, Mechanical

Performance improvement of water-lubricated thrust pad bearing operating with the turbulent flow using a new micro-pocket design

J. C. Atwal et al.

Summary: This paper explores the performance parameters of a sector-shaped pad thrust bearing lubricated with water using a new pocket design, considering the effects of turbulence and cavitation. The study investigates the effects of new pocket attributes and compares the performance behaviors achieved with the new pocketed pad bearing with plain pad and rectangular pocketed bearing.

TRIBOLOGY INTERNATIONAL (2021)

Article Thermodynamics

On the use of metasurface for Vortex-Induced vibration suppression or energy harvesting

Junlei Wang et al.

Summary: This paper investigates the use of metasurface patterns to modify the aerodynamic characteristics of bluff bodies for vortex-induced vibration (VIV) suppression or enhancement. Experimental validation and theoretical modeling are used to analyze the impact of metasurfaces on aerodynamic behaviors and vortex shedding processes. The study provides insights into the mechanisms behind the influence of metasurfaces on VIV systems, suggesting practical recommendations for using piezoelectric transducers with moderate coupling coefficients.

ENERGY CONVERSION AND MANAGEMENT (2021)

Article Engineering, Mechanical

Theoretical and experimental research on the micro interface lubrication regime of water lubricated bearing

Zhongliang Xie et al.

Summary: This paper aims to reveal the micro interface lubrication regimes of water lubricated bearings through computational fluid dynamic analysis. The influences of operating conditions and dimensionless structural parameters on fluid features are explored, and experimental data verifies the correctness of the lubrication model. The research results lay a solid foundation for further optimal design of such bearings.

MECHANICAL SYSTEMS AND SIGNAL PROCESSING (2021)

Article Nuclear Science & Technology

Rotor dynamic analysis of the vertical hydro-hybrid bearing rotor coupled system of a two-circuit main loop liquid Sodium pump system

Zhongliang Xie et al.

Summary: This study focuses on the rotor dynamic analysis of the vertical hydro-hybrid bearing-rotor system of a two-circuit main loop liquid Sodium pump system. A new modelling method is proposed and verified with comparison of lubrication parameters. Modal analysis and harmonic response simulation are conducted, providing insights into the system's behavior under different operating conditions.

ANNALS OF NUCLEAR ENERGY (2021)

Article Engineering, Mechanical

Theoretical and experimental investigation on the effect of supply pressure on the nonlinear behaviors of the aerostatic bearing-rotor system

Jianbo Zhang et al.

Summary: This paper examines the nonlinear behaviors of the aerostatic bearing-rotor system, finding complex nonlinear behaviors which are delayed by increasing supply pressure. A method based on adjusting supply pressure is proposed to suppress subsynchronous vibration, with experimental results verifying its correctness and feasibility.

MECHANICAL SYSTEMS AND SIGNAL PROCESSING (2021)

Article Engineering, Mechanical

A tribo-dynamic model of coupled journal-thrust water-lubricated bearings under propeller disturbance

Guo Xiang et al.

Summary: The study aims to develop a numerical model for investigating coupled water-lubricated bearings under propeller disturbance, with a validating experiment showing that disturbing moment increases the transient contact force of the bearings and coupling hydrodynamic pressure significantly affects their tribo-dynamic behaviors. Parametric studies reveal optimal radial clearance and tilting angles for minimizing contact force, while numerical results highlight the importance of propeller rotor mass on the bearings' tribo-dynamic responses.

TRIBOLOGY INTERNATIONAL (2021)

Article Engineering, Mechanical

Fluid-asperity interaction induced random vibration of hydrodynamic journal bearings towards early fault diagnosis of abrasive wear

H. Zhang et al.

Summary: The study found that wear-induced narrowband spatial components on the journal surface can excite random vibrations in the bearing, and the vibration behavior dependent on speed is an effective indicator of surface defects.

TRIBOLOGY INTERNATIONAL (2021)

Article Engineering, Mechanical

Simulation and experiment on lateral vibration transmission control of a shafting system with active stern support

Xiling Xie et al.

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES (2020)

Article Engineering, Mechanical

Experimental research on the interface lubrication regimes transition of water lubricated bearing

Zhongliang Xie et al.

MECHANICAL SYSTEMS AND SIGNAL PROCESSING (2020)

Article Engineering, Mechanical

Thermal turbulent lubrication analysis of rough surface journal bearing with journal misalignment

Shaoyu Zhu et al.

TRIBOLOGY INTERNATIONAL (2020)

Article Engineering, Mechanical

Study on the tribo-dynamic performances of water-lubricated microgroove bearings during start-up

Guo Xiang et al.

TRIBOLOGY INTERNATIONAL (2020)

Article Mechanics

Numerical analysis of added mass and damping of elastic hydrofoils

Jia-sheng Li et al.

JOURNAL OF HYDRODYNAMICS (2020)

Article Engineering, Mechanical

Effect of clearances in rolling element bearings on their dynamic performance, quality and operating life

Mostafa Yakout et al.

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY (2019)

Article Engineering, Mechanical

Tribological behavior of aged UHMWPE under water-lubricated condition

Tie Chang et al.

TRIBOLOGY INTERNATIONAL (2019)

Article Engineering, Mechanical

Study on influencing factors of lubrication performance of water-lubricated micro-groove bearing

Jiayu Gong et al.

TRIBOLOGY INTERNATIONAL (2019)

Article Engineering, Mechanical

On the effect of surface roughness in point-contact EHL: Formulas for film thickness and asperity load

M. Masjedi et al.

TRIBOLOGY INTERNATIONAL (2015)

Article Engineering, Mechanical

On the Stribeck Curves for Lubricated Counterformal Contacts of Rough Surfaces

Dong Zhu et al.

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME (2015)

Article Physics, Applied

Friction reduction using discrete surface textures: principle and design

Stephen M. Hsu et al.

JOURNAL OF PHYSICS D-APPLIED PHYSICS (2014)

Article Engineering, Mechanical

Effect of Roughness Orientation on the Elastohydrodynamic Lubrication Film Thickness

Dong Zhu et al.

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME (2013)

Article Engineering, Mechanical

Multi-scale friction modelling for rough contacts under sliding conditions

D. K. Karupannasamy et al.

Article Engineering, Mechanical

On the λ ratio range of mixed lubrication

Dong Zhu et al.

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY (2012)

Article Green & Sustainable Science & Technology

Seawater lubricated polymer journal bearings for use in wave energy converters

Stephen Meicke et al.

RENEWABLE ENERGY (2012)

Article Engineering, Mechanical

Asperity micro-contact models as applied to the deformation of rough line contact

Ali Beheshti et al.

TRIBOLOGY INTERNATIONAL (2012)

Article Engineering, Mechanical

Effect of Internal Clearance on Load Distribution and Life of Radially Loaded Ball and Roller Bearings

Fred B. Oswald et al.

TRIBOLOGY TRANSACTIONS (2012)

Article Engineering, Mechanical

Three-Dimensional Plasto-Elastohydrodynamic Lubrication (PEHL) for Surfaces with Irregularities

Ning Ren et al.

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME (2011)

Article Engineering, Mechanical

The effect of Cu grain size on transition from EHL to BL regime (Stribeck curve)

A. Moshkovich et al.

Article Engineering, Mechanical

On the Prediction of Running-In Behavior in Mixed-Lubrication Line Contact

Saleh Akbarzadeh et al.

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME (2010)

Article Engineering, Mechanical

The Stribeck curve and lubrication design for non-fully wetted surfaces

M. Kalin et al.