Results 101 to 110 of about 38,019 (302)

Numerical Calculation and Mechanism Analysis of Water-film Whirl Problem of Three-bearing Reactor Coolant Pump

Yuanzineng kexue jishu
Aiming at the abnormal low-frequency vibration of the three-bearing reactor coolant pump during the service period of the power station, the ANDRITZ reactor coolant pump was taken as the research object. Based on the calculation methods of fluid dynamics
WANG Luyao1, ZHANG Fuhai1, GUO Yi2, CHAO Yilin3, LIU Xiangsong4, MENG Jin1, YUAN Hong5
doaj   +1 more source

Polyurethane Composites for Water-lubricated Bearings Application

Chinese Journal of Applied Chemistry, 2012
Organic-inorganic hybrid polyurethane composites with excellent heat-resistance were synthesized via reaction of toluene-2,4-diisocyanate(TDI) prepolymer,3,3-dichloro-4,4-diamino diphenylmethane(MOCA),aminopropyl triethoxysilane(APTEOS) and tetraethoxysilane(TEOS).Molecular structures and properties of the material were characterized by IR,TGA,friction
openaire   +1 more source

An Investigation of Acoustic Emission Responses of a Self Aligning Spherical Journal Bearing

, 2011
High power industrial machinery such as steam turbines and large pumps use journal bearings as rotor supports because this type of bearing is a high load carrying capacity.
Gu, Fengshou, Ball, Andrew, Ball, A. D., Gu, F., Wang, Tie, Raharjo, Parno, Raharjo, P., Abdusslam, S.A., Abdusslam, Shukri A.   +8 more
core  

Embedding Chemistry and Pharmacy Into Sustainability

Angewandte Chemie International Edition, EarlyView.
Chemistry and pharmacy provide products and processes that are indispensable for our high living standard. To understand their relationship with sustainability is important to allow them to contribute to sustainability in a sustainable manner. An integrated overview of green, circular, and sustainable chemistry and pharmacy is given and how they have t
Klaus Kümmerer
wiley   +1 more source

水润滑橡胶轴承摩擦性能及润滑状态的实验研究

Jixie chuandong, 2014
In order to study the influence of load,speed and its interaction on the water-lubricated bearing friction performance,a series of experiments on the MPV-20 Dscreen type friction wear testing machine are carried out,the friction coefficient at different ...
邓海峰, 王家序, 邱茜
doaj  

Rapid solution for analysis of nonlinear fluid film force and dynamic behavior of a tilting-pad journal bearing-rotor system with turbulent and thermal effects

Friction, 2019
To analyze the nonlinear dynamics of a tilting-pad journal bearing (TPJB)-rotor system with high accuracy and speed, the database method (DM) is modified to rapidly determine the nonlinear fluid film force (NFFF) of a TPJB while considering turbulent and
Yingze Jin, Zhaoyang Shi, Xiaojing Zhang, Xiaoyang Yuan   +3 more
doaj   +1 more source

Bioconvective Unsteady Casson Hybrid Nanofluid Flow on a Variable Darcy Regime Between Two Rotating Disks With Variable Heat Source

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study carries significant consequences in various engineering applications, such as cooling rotating disk surfaces, improving chemical reactor performance, and designing filtration systems. Considering these main applications in view, the aim of this study is to investigate time‐dependent Casson hybrid nanofluid flow on a permeable ...
Ebrahem A. Algehyne, Abdul Bariq, Mounirah Areshi, Fahad Maqbul Alamrani, Zehba Raizah, Izharul Haq, Anwar Saeed   +6 more
wiley   +1 more source

Tribological Properties of UHMWPE–Rubber Reinforced by Nano Fillers Under Water Lubricated

工程科学与技术, 2021
In order to study the effect of test load and speed on the tribological properties of Nano–SiC modified ultra high molecular weight polyethylene (UHMWPE)–rubber composites under water lubrication condition, Nano–SiC and Polytetrafluoroethylene (PTFE ...
Dongya YANG, Song TIAN, Junfen REN, Honggang WANG, Gui GAO, Shengsheng CHEN, Weitao LI   +6 more
doaj  

Water Lubricated Bearing Molding Technology Impact on Bearing Bush Material Performance

, 2011
Water lubricated plastic alloy bearing molding technology determines the mechanical properties and performance of the product. The influence of molding temperature and time are significant on the performance of water lubricated bearing.
Jin Min Peng
core   +1 more source

First‐Principles Study of Structural, Mechanical, Electronic, Thermodynamical, and Optical Properties of XGaO2 (X = Rb and Cs): Unlocking Its Green Energy Potential

Advanced Physics Research, EarlyView.
This study employs density functional theory (DFT) to investigate the structural, mechanical, electronic, optical, and thermodynamic properties of RbGaO2 and CsGaO2. The calculated band structures and band‐edge positions indicate semiconducting behavior and favorable alignment for photocatalytic dye degradation and hydrogen evolution, highlighting ...
Md. Zuel Rana, Md. Saiful Islam, Jahid Hasan, Abdul Barik, Mahamud Hasan Reedoy, Afroza Khatun, Md. Abde Mannaf, Ehesanul Hoq, Neelufar Panna, M. S. Alam   +9 more
wiley   +1 more source