Academic literature on the topic 'Central lubrication system'

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Journal articles on the topic "Central lubrication system"

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Maláková, Silvia, and Samuel Sivák. "Practical Example of Modification of a Gearbox Lubrication System." Lubricants 10, no. 6 (2022): 110. http://dx.doi.org/10.3390/lubricants10060110.

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This paper presents the optimization of the lubrication method of a helical bevel gearbox, which is part of a pickling line. The first gear stage of this gearbox showed frequent failures. The bevel gearing and bearings were damaged. Damage analysis was performed, based on which a change in bevel gearing and bearing lubrication was proposed. In this case, the original transmission was lubricated by dip lubrication. The bevel gear wheel was insufficiently submerged below the lubricating oil level. Due to insufficient lubrication of the bevel gearing, both gear wheels, the bevel pinion, and the b
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Wu, Zhi Qiang, and Jun Fang Zhao. "The Design of Plate Mills Hydraulic Lubricating and Monitoring System." Advanced Materials Research 1006-1007 (August 2014): 643–49. http://dx.doi.org/10.4028/www.scientific.net/amr.1006-1007.643.

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Plate mills hydraulic system is made up of several hydraulic stations, lubrication stations and grease stations, these hydraulic stations and lubrication stations are distributed around the mills. Each hydraulic station possesses qualities of successive long working time, high reliability and signal complexity, and it can satisfy diverse demands of high grade pressure or temperature control, etc. This paper is based on these demands, assembling control missions of hydraulic and lubricating stations. Several PLC S7-300 were chosen to match the need of controlling mills hydraulic and lubricating
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Neville, A., A. Morina, T. Liskiewicz, and Y. Yan. "Synovial joint lubrication — does nature teach more effective engineering lubrication strategies?" Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 221, no. 10 (2007): 1223–30. http://dx.doi.org/10.1243/09544062jmes724.

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Nature shows numerous examples of systems which show energy efficiency, elegance in their design and optimum use of materials. Biomimetics is an emerging field of research in engineering and successes have been documented in the diverse fields of robotics, mechanics, materials engineering, and many more. To date little biomimetics research has been directed towards tribology in terms of transferring technologies from biological systems into engineering applications. The potential for biomimicry has been recognized in terms of replicating natural lubricants but this system reviews the potential
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Li, Feng, Feng Guo, Guan Gyuan Liu, and Zhang Gang. "Design and Experiment Study on a New Type of Lubrication Simulation System for Thrust-Ball Bearing in Confined Space." Applied Mechanics and Materials 873 (November 2017): 303–7. http://dx.doi.org/10.4028/www.scientific.net/amm.873.303.

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Many machine components work within an elastohydrodynamic lubrication (EHL) regime. Unconfined space is widely used in EHL formulas for to evaluate film thickness, which is related to operating conditions and material properties. In classical theoretical EHL studies, film pressure matches the loading balance and the location of the lubricated components can be adjusted. In the present study, the lubrication performance is analyzed based on a confined space. A thrust ball bearing lubrication simulation system is designed and used to examine the relationship between velocity and film thickness.
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CZARNY, Ryszard. "INFLUENCE OF FILLERS ON THE RHEOLOGICAL PROPERTIES OF THEIR COMPOSITIONS WITH LUBRICATING GREASES." Tribologia 273, no. 3 (2018): 47–55. http://dx.doi.org/10.5604/01.3001.0010.6120.

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The paper presents the results of studies on the influence of fillers, introduced into lubricating greases, on the rheological properties of resultant grease compositions. These fillers were graphite and PTFE powders. They are added to greases in order to improve their tribological properties. They also affect their rheological properties, and they mainly change the value of the shear stress in grease during its flow in a lubrication system. Knowledge of this value is important in designing automated central lubrication systems in which these compositions may be used. Measurements during exper
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Czarny, Ryszard. "THE EFFECT OF THE TYPE OF WALL MATERIAL AND GREASE COMPOSITION PAIRING ON SHEAR STRESSES IN BOUNDARY LAYER." Tribologia 284, no. 2 (2019): 27–36. http://dx.doi.org/10.5604/01.3001.0013.4146.

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The paper presents the results of research on the influence of fillers introduced into plastic greases on the rheological properties of the boundary layer of the resultant lubricant compositions. The fillers were PTFE and MoS2 powders. They are added to lubricants to improve their tribological properties; however, these fillers also affect the rheological properties of the composition. This affects the change of the shear stress value in the lubricant during its flow in the lubrication system. Knowledge of this value, especially during the flow of the lubricant composition in the boundary laye
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Wang, Yuechang, and Ying Liu. "Understanding the Influences of Multiscale Waviness on the Elastohydrodynamic Lubrication Performance, Part II: The Partial-Film Condition." Lubricants 12, no. 6 (2024): 190. http://dx.doi.org/10.3390/lubricants12060190.

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This paper is the second part of a two-part report studying the responses of a typical point-contact elastohydrodynamic lubrication (EHL) system to multiscale roughness mimicked by wavy surfaces. The wavy surfaces are defined by three key parameters: amplitudes, frequencies, and directions. The previous Part I paper focuses on the full film lubrication condition, while the current paper focuses on the partial film regime where asperity contacts occur. A transient thermal EHL model simulates lubrication problems with different waviness parameters, loads, and speeds. The total number of simulati
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Huo, Junzhou, Jianjun Zhou, Tao Li, Zhichao Meng, and Wei Sun. "Thermal EHL Characteristics Investigation on Axle Box Bearings of Railway Vehicle Based on Slicing Method." Shock and Vibration 2019 (April 2, 2019): 1–14. http://dx.doi.org/10.1155/2019/6981482.

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Lubrication failures of axle box bearings can lead to accidents, such as bearing burnout and hot axle cutting. Presently, the modeling of the vehicle-track system dynamics rarely considers the nonlinear contact load of axle box bearings, and this leads to imperfection in the vehicle-track system dynamics calculation. And then, the load distribution and lubrication characteristics of axle box bearings are difficult to obtain. Therefore, in this paper, we fully consider the time-varying nonlinear contact load of bearings and track irregularity in establishing the bearing-wheel-rail system coupli
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Zhai, Liming, Zhengwei Wang, Yongyao Luo, and Zhongjie Li. "TEHD analysis of a bidirectional thrust bearing in a pumped storage unit." Industrial Lubrication and Tribology 68, no. 3 (2016): 315–24. http://dx.doi.org/10.1108/ilt-07-2015-0092.

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Purpose The purpose of this paper is to analyze lubrication characteristics of a bidirectional thrust bearing in a pumped storage, considering the effect of the thermal elastic deformation of the pad and collar. Design/methodology/approach This study used the fluid–solid interaction (FSI) technique to investigate the lubrication characteristics of a bidirectional thrust bearing for several typical operating conditions. The influences of the operating conditions and the thrust load on the lubrication characteristics were analyzed. Then, various pivot eccentricities were investigated to analyze
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Glazunov, D. V. "Development of the lubricant for side-mounted rail flange lubricators for traction rolling stock." Vestnik of the Railway Research Institute 78, no. 1 (2019): 59–64. http://dx.doi.org/10.21780/2223-9731-2019-78-1-59-64.

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Specificity of operating conditions of the rolling stock defines a number of requirements for lubricants intended for the wheel-rail tribosystem. Lubricants are used for “wheel — rail” contact, the aggregate state of which varies from liquid to solid. When evaluating the lubrication properties of these materials, a significant number of factors must be taken into account, in particular, influence of the environment, method of application, condition of the rail surface. The paper discusses the main operational requirements for lubricants operating in a wheel-rail tribosystem. Temperature ranges
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Dissertations / Theses on the topic "Central lubrication system"

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Sikora, Vojtěch. "Optimalizace mazacího systému pro mazání ložisek válcovacích stolic." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443758.

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The thesis focuses on the optimization of the central lubrication system for the lubrication of rolling bearings of rolling mills in the operation continuous wire rod mill. The work is divided into theoretical and practical part. The first part of the theoretical work is focuses on the search of rolling and tribodiagnostics. The next part focuses on the description of modern central lubrication systems, explanation of their principle and practical use. The practical part explains the function of the old lubrication system for rolling mill bearings with an analysis of its problems. Next is desc
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Belinelli, Marjorie Maria. "Desenvolvimento de método para seleção de política de lubrificação de máquinas centrada em confiabilidade: aplicação na indústria alimentícia." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/3/3151/tde-15072016-162939/.

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Em indústria de alimentos são aplicados máquinas e equipamentos para processamento de alimentos, os quais exigem lubrificação para garantir seu pleno estado de funcionamento. Porém o mesmo lubrificante que auxilia o funcionamento do maquinário é considerado um risco potencial de contaminação do produto em suas etapas de processamento, vindo a interferir em sua qualidade. Além deste fator, uma inadequada gestão do processo de lubrificação de máquinas e equipamentos podem gerar eventos de falhas, impactando na disponibilidade e confiabilidade operacional do sistema industrial como todo. O objeto
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Book chapters on the topic "Central lubrication system"

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"Central Lubrication Systems for Vehicles." In Encyclopedia of Lubricants and Lubrication. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-22647-2_100095.

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Adaikan, Ganesh. "Female sexual dysfunction." In Oxford Textbook of Obstetrics and Gynaecology, edited by Sabaratnam Arulkumaran, William Ledger, Lynette Denny, and Stergios Doumouchtsis. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198766360.003.0060.

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According to the World Health Organization, sexual health as a state of physical, emotional, mental, and social well-being in the context of sexuality, excludes the mere absence of disease, dysfunction, or infirmity. Thus a woman’s sexual function encompasses many areas; the construct of a normal function as a quality of life indicator often but not always conforms to the sexual response cycle, which is an endogenous process contributed by hormonal, vascular, neuronal, and psycho-emotional factors. Clinical and scientific evidence abounds about the physiological role of sex steroids viz. oestr
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Conference papers on the topic "Central lubrication system"

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GÖK, Selva, and Mahmut FIRAT. "Analysis of Faults in Sewage Systems with Geographical Information Systems." In 4th International Conference of Contemporary Affairs in Architecture and Urbanism – Full book proceedings of ICCAUA2020, 20-21 May 2021. Alanya Hamdullah Emin Paşa University, 2021. http://dx.doi.org/10.38027/iccaua2021tr0050n9.

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Wastewater systems are one of the most important infrastructure elements in terms of human and environmental health. In such systems, failures are observed depending on various factors. These failures increase operating and maintenance-repair costs and create threats to human and environmental health. For this reason, these systems should be monitored regularly and the factors causing malfunction should be analyzed. In this study, it is aimed to evaluate and analyze failures occurring in sewerage systems with geographical information systems. For this, the failures in the sewage system of Mala
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Wang, Zhan-jiang, Yuan-zhong Hu, Wen-zhong Wang, and Hui Wang. "Numerical Analysis of Point Contact EHL on Coated Substrates." In ASME/STLE 2009 International Joint Tribology Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/ijtc2009-15038.

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Performances of point contact EHL on multilayered or coated substrates have been analyzed in this paper via computer simulations, with emphasis on comparing the effects of Newtonian and non-Newtonian lubricants. The lubrication system consists of a rigid ball in contact with a smooth coated flat. The coating is perfectly bonded to an elastic substrate and it has a uniform thickness. The rigid ball has surface velocity U relative to the contact point. The hydrodynamic pressure p is governed by a generalized Reynolds equation in which the non-Newtonian effects of lubricants are characterized by
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Deng, Xin, Cori Watson, Minhui He, Roger Fittro, and Houston Wood. "Response Surface Mapping and Multi-Objective Optimization of Crowning and Tapers in Water-Lubricated Thrust Bearings." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-91984.

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Abstract Fluid film bearings for turbomachinery are designed to support the loads applied by the rotor system. Oil-lubricated bearings are widely used in high speed rotating machines. However, environmental issues and risk-averse operations have made water lubricated bearings increasingly popular. Due to different viscosity properties between oil and water, the low viscosity of water decreases film thickness significantly. Crowning and tapers are two main ways to maintain the film thickness requirements in water lubrication, but no studies about the influence of these parameters on the film th
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Prabhakar, Arun, Stephen Ambrose, and Herve Morvan. "Numerical Investigation of Two Phase Flow in a Dual Drive Booster (DDB)." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-90347.

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Abstract Recent efforts have been devoted in developing cutting edge methods and technologies to overcome the complications involved in extracting power from the spools in turbofan engines to drive the power systems in aircraft. In a contemporary turbofan engine design, a Dual Drive Booster turbofan (DDBTF) summation gear box is employed to derive power from the low pressure (LP) and high pressure (HP) spools. This paper aims to investigate the scavenging of lubrication oil from the Dual Drive Booster gearbox. It is essential that that the scavenging of oil from the gearbox is efficient to era
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Kudish, Ilya I. "Uniform Equations in the Inlet and Exit Zones of Heavily Loaded Point EHL Contacts Involved in Various Steady Motions." In ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/esda2014-20388.

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Heavily loaded point EHL contacts involved in steady purely transitional, skewed transitional, and transitional with spinning motions are considered. It is shown that in the central parts of the inlet and exit zones of such heavily loaded point EHL contacts the asymptotic equations governing the EHL problem along the lubricant flow streamlines for the above types of contact motions can be reduced to two sets of asymptotic equations: one in the inlet and one the exit zones. The latter sets of equations are identical to the asymptotic equations describing lubrication process in the inlet and exi
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Bieneman, Jason, Fabio Araujo, and Nikhil Nachappa Iychodianda Kushalappa. "Hydrogen Internal Combustion Engine Component Investigation and Development for Heavy Duty Truck Applications." In ASME 2023 ICE Forward Conference. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/icef2023-110098.

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Abstract Limiting global warming was defined as an essential target at the Paris climate conference in 2015. This target can only be achieved by holistically reducing CO2 emissions, ignoring sector borders of our industries and broader economy. A significant share of CO2 emissions in the transportation sector are emitted by Heavy Commercial Vehicles (HCV) due to the required long range and/or high-power requirements. Therefore, HCV’s such as long-haul trucks (LH) are a major focus and for these applications, the hydrogen combustion engine (H2-engine) offers a promising complement to battery el
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Fonseca, Abner Lourenço da. "Constrictive Pericarditis." In II INTERNATIONAL SEVEN MULTIDISCIPLINARY CONGRESS. Seven Congress, 2023. http://dx.doi.org/10.56238/homeinternationalanais-079.

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Abstract The pericardium is a fibrous membrane that surrounds the heart and is composed of two components: visceral pericardium and parietal pericardium. Under physiological conditions, it performs important functions, such as lubrication, which minimizes friction between the organ and adjacent structures, limits intrathoracic cardiac motion, aids in filling the cardiac chambers, and participates in the balancing between the right and left ventricles during diastole and systole interactions. Constrictive Pericarditis occurs when the pericardium is thickened, fibrotic and often calcified, signi
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Rena, Rahmawan, Ewan Robb, Ibnu Maulana, Aswin Batubara, Yulia Yulia, and Wagianto Wagianto. "Deployment of Downhole Hydraulic Lubricator Valve Enables Safe and Efficient Perforating and Production Testing Strategy – Case Study in Jambaran High Rate Gas Field, Indonesia." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206172-ms.

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Abstract This paper details the first implementation of a deep-set downhole hydraulic lubricator valve (DHLV) in Indonesia. This application was implemented in Jambaran field, onshore Central Java as part of Jambaran-Tiung Biru (JTB) national strategic project. Jambaran is a large carbonate gas field development located in proximity to densely populated areas. Since the field's reservoir contains significant concentrations of CO2 and H2S, it was important to design the completions to be able to perforate and test the wells safely without endangering the surrounding area. To produce as per rese
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Zhang, Hongsheng, Xingyu Liang, Hanzhengnan Yu, Yuesen Wang, and Chen Weijian. "Experimental Study on the Adhering Fuel Film of the Impinged N-Butanol-Diesel Blends." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66576.

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In this paper, the characteristics of the adhering fuel film after a spray impingement for the n-butanol-diesel blending fuels have been investigated under different injection pressures (60MPa, 80MPa, 100MPa, and 120MPa) and impingement angles (45°, 60°, 75° and 90° ). The blending fuels include the n-butanol (10%)-diesel (90%) volume ratio (B10), the n-butanol (20%)-diesel (80%) (B20) and the n-butanol (30%)-diesel (70%) (B30). The applied diesel is the commercial No. 0 diesel fuel. A cold rolling flat steel plate with a dry surface (Dry wall) and a plate coated with lubricating oil on its su
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