Готові списки джерел за темами / Smooth shaft

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Добірка наукової літератури з теми "Smooth shaft"

Автор: Grafiati

Опубліковано: 28 травня 2022

Оновлено: 31 липня 2025

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Статті в журналах з теми "Smooth shaft"

Wu, Jiwei, Shian Chao Tay, and Alexander Y. Shin. "The Effect of Screw Design on Union Rates in Scaphoid Nonunions." Hand Surgery 20, no. 02 (2015): 273–79. http://dx.doi.org/10.1142/s0218810415500239.

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Background: The purpose of this study is to compare the outcome of the conical fully threaded headless screw to that of a smooth shaft headless screw in a series of scaphoid nonunions requiring screw fixation to determine if screw design had an influence on union rates. Methods: We retrospectively reviewed 104 cases of surgically treated scaphoid nonunions. After eliminating cases with our exclusion criteria, the study cohort had 40 cases for analysis. A comparison and analysis of union rates was undertaken between the fully threaded Acutrak 2 mini screw and the smooth shaft Herbert screw. Res

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Minowa, Toshimichi, Hiroshi Kimura, Junichi Ishii, and Masahiko Ibamoto. "Smooth Gear Shift Control System of Automatic Transmission Using Estimated Output Shaft Torque." Transactions of the Japan Society of Mechanical Engineers Series C 61, no. 591 (1995): 4334–38. http://dx.doi.org/10.1299/kikaic.61.4334.

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Melnik, V. A. "Calculation of radial forces in smooth shaft slot seals." Chemical and Petroleum Engineering 47, no. 9-10 (2012): 603–8. http://dx.doi.org/10.1007/s10556-012-9517-3.

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Alawneh, Ahmed Shlash, Abdallah I. Husein Malkawi, and Husein Al-Deeky. "Tension tests on smooth and rough model piles in dry sand." Canadian Geotechnical Journal 36, no. 4 (1999): 746–53. http://dx.doi.org/10.1139/t98-104.

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In order to delineate the significant variables affecting the ultimate uplift shaft resistance of a pile in dry sand, a testing program comprising 64 pullout tests was conducted on open- and closed-ended rough and smooth model piles of two sizes (41 and 61 mm outside diameter). The model piles were installed in medium dense and dense sand to an embedded depth of 0.8 m using two methods of pile placement, static jacking and driving. A rigid steel box measuring 1.1 × 1.1 × 1.3 m was used as a sand container. The results obtained from this study indicated that pile placement method, initial sand

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Chauhan, Nathi Ram, Arhantika Khera, Shubhi Agarwal, Mehak Bagri, and Aditi Aggarwal. "Effect of Nanoparticle on the Performance of Water Lubricated Journal Bearing." IOP Conference Series: Materials Science and Engineering 1228, no. 1 (2022): 012032. http://dx.doi.org/10.1088/1757-899x/1228/1/012032.

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Abstract Journal bearings have widespread use in machinery with rotating shafts. Hydrodynamic journal bearings have lubricating fluid present between shaft and bearing to reduce friction and allow smooth operation. The lubricating fluid develops pressure when bearing is in operation and this pressure is used to carry load on the shaft. The commonly used lubricants in the industry are petroleum based synthetic oils. To do away with the disposal issues and toxicity regarding synthetic oils, water is used as the lubricating fluid for this study. The effect of adding nanoparticles to water is stud

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Ramadhan, Fachri Rizieq, and Marno Marno. "Process for Making Shafts for Locking Saws." JETISH: Journal of Education Technology Information Social Sciences and Health 3, no. 2 (2024): 1437–45. http://dx.doi.org/10.57235/jetish.v3i2.3385.

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The process of making a saw locking shaft is a crucial step in ensuring the reliability and safety of the saw machine. The crux of the problem at hand is the need for a locking shaft with sufficient strength and resistance to secure the saw blade in position during operation. The aim of this research is to design and produce saw locking shafts using a lathe and milling machine. This research was carried out in a local lathe workshop, which has facilities for turning and milling processes. The method used in this research was experimental using ST 37 steel as the basic material. The manufacturi

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Chen, Xiang, Guo Fang Li, Lin Yan Zhang, and Shuang Liu. "Study of Shock Control of Gear-Shifting in Automatic Transmission." Advanced Materials Research 490-495 (March 2012): 890–94. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.890.

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A new smooth shifting control is worked out in response to problems existed in gear-shift control of the AG4 automatic transmission, and a new pattern of oil pressure change for the engaging elements during the transition stage is formulated. Dynamic motion equations for the AG4 automatic transmission are established using simulated lever system. The simulation test is done of the 2nd-3rd (3rd-2nd) gear-shift phase in AG4 automatic transmission by means of MATLAB/Simulink software. The result of which shows the change in amplitude of the output shaft angular acceleration and that of the degree

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Childs, D., D. Elrod, and K. Hale. "Annular Honeycomb Seals: Test Results for Leakage and Rotordynamic Coefficients; Comparisons to Labyrinth and Smooth Configurations." Journal of Tribology 111, no. 2 (1989): 293–300. http://dx.doi.org/10.1115/1.3261911.

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Test results are presented for leakage and rotordynamic coefficients for seven honeycomb seals. All seals have the same radius, length, and clearance; however, the cell depths and diameters are varied. Rotordynamic data, which are presented, consist of the direct and cross-coupled stiffness coefficients and the direct damping coefficients. The rotordynamic-coefficient data show a considerable sensitivity to changes in cell dimensions; however, no clear trends are identifiable. Comparisons of test data for the honeycomb seals with labyrinth and smooth annular seals shows the honeycomb seal had

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Hendrawan, Andi. "ANALISA PENYEBAB KEAUSAN POROS BALING BALING KAPAL." Saintara: Jurnal Ilmiah Ilmu-Ilmu Maritim 4, no. 1 (2020): 1–8. https://doi.org/10.52475/saintara.v4i1.45.

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Ship propellers are very important because in general ships moving in the medium of water with a certain speed, it will experience a drag (resistance) that isopposite to the direction of motion of the ship. The amount of drag that occurs must be able to be overcome by the thrust of the ship (thrust) resulting from thework of the ship's propulsion. Other causes of bale blast wear: Breaking of propeller shaft seal, Propeller shaft lubricating oil circulation is not smooth,Unbalanced propeller shaft, so to prevent damage is needed periodic maintenance and repair so that the propeller shaft can wo

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Cheung, K. Y. S., and A. Daadbin. "Torsional Vibration of Rotating Shafts." International Journal of Mechanical Engineering Education 22, no. 2 (1994): 113–22. http://dx.doi.org/10.1177/030641909402200207.

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In rotating shafts where large power is transmitted, it is desired to achieve smooth transmission and avoid any torsional vibration in the system. These vibrations result from torsional flexibilities due to shaft stiffnesses and carried inertias. To demonstrate this phenomenon a user-friendly computer program is developed as a result of a final-year project to analyse different multi-degree torsional vibratory systems. The computer program together with the corresponding experimental rig makes the students aware of the torsional resonances in the rotating shafts and demonstrates their effect.

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Більше джерел

Дисертації з теми "Smooth shaft"

Бага, Вадим Миколайович, Вадим Николаевич Бага, Vadym Mykolaiovych Baha та О. І. Подоляка. "Підвищення ефективності лабіринтних ущільнень". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/62584.

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В данній роботі проводилися чисельні дослідження із застосуванням гідродинамічного програмного комплексу FlowVision для розрахунку течії у вузьких осьових зазорах лабіринтного ущільнення, за результатами яких одержані нові дані по детальному дослідженню ущільнення з гладким валом.

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Wang, Cheng-Chi, and 王正吉. "A Study of Rotor Position Detection and Smooth Starting of a Shaft-Sensorless Permanent Magnet Synchronous Motor." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/52050422456693382550.

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碩士<br>大同工學院<br>電機工程學系<br>84<br>The purpose of this thesis to develop a modified space vector pulse width modulation (modified SVPWM) method which fits the split three-phase inverter and presents a new algorithm for shaft-sensorless of permanent magnet synchronous motor (PMSM) to detect the rotor position based on estimation the three-phase back EMF for measuring thr terminal voltages and line currents. Two methods of rotor position detection for the PMSM drivingare proposed. The first one a

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Книги з теми "Smooth shaft"

Mason, Peggy. Gaze Control. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780190237493.003.0019.

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In addition to serving perception, gaze acts as a powerful social signal and mode of communication. Gaze is altered in several psychiatric diseases and impaired by a variety of central and peripheral lesions. Eye movements that serve to stabilize gaze include the vestibuloocular reflex (VOR) and fixation, whereas eye movements that shift gaze include saccades, cancellation of the VOR, and smooth pursuit. The pontine horizontal gaze center and midbrain vertical gaze center connect to extraocular motoneurons and mediate all eye movements. Neural circuits involved in generating the VOR, horizonta

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Drelichman, Mauricio, and Hans-Joachim Voth. Taxes, Debts, and Institutions. Princeton University Press, 2017. http://dx.doi.org/10.23943/princeton/9780691151496.003.0004.

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This chapter describes the fiscal institutions and borrowing instruments available to the Crown. The Castilian portfolio of fiscal and financial instruments was remarkably complete for its time. The revenue technology was a mix of useful adaptations of medieval legacy taxes combined with newer excises and trade duties. On the financing side, the Crown had both long- and short-term debt instruments at its disposal. Although the long-term juros (annuities and perpetuities) were technically nominative, they were widely traded in the secondary market, supplying a key element for the correct pricin

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Частини книг з теми "Smooth shaft"

Radzevich, Stephen P. "Conditions for Transmitting a Uniform Rotation Smoothly from a Driving Shaft to a Driven Shaft: Three Fundamental Laws of Gearing." In Theory of Gearing. CRC Press, 2018. http://dx.doi.org/10.1201/9780429505195-5.

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Lu, Zhiyong, Ye Jin, Yuanhao Yu, and Lijun Ma. "A Modified Algorithm of Phase-Smoothed Pseudorange Based on Doppler Frequency Shift." In Lecture Notes in Electrical Engineering. Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-0940-2_52.

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Ghorab, Ahmed S., Wesam M. Ashour, and Shadi I. Abudalfa. "An Adaptive Oversampling Method for Imbalanced Datasets Based on Mean-Shift and SMOTE." In Explore Business, Technology Opportunities and Challenges ‎After the Covid-19 Pandemic. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-08954-1_2.

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de Schepper, Marcus. "Autumn 1643 – a Smooth Shift of Generations? Poems by Caspar Barlaeus and Caspar Kinschotius on a Portrait of Jacobus Maestertius." In Dulces ante omnia Musae. Brepols Publishers, 2021. http://dx.doi.org/10.1484/m.stlll-eb.5.124067.

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Minh, Le, Cao Hung Phi, and Trinh Minh Hoang. "Study on Vibration of Electric Vehicles Manufactured in Vietnam on Road Class C According to ISO 8608:2016." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-93891-7_31.

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Abstract This study explores how the damping coefficient affects vibration in small electric cars. By developing a mathematical model and simulating different damping coefficients, the authors found that this coefficient is crucial for controlling vehicle vibration, leading to a smoother and safer driving experience. Unlike traditional gasoline cars, small electric vehicles require different damping coefficients due to their distinct weight and structure. The study offers specific recommendations for optimizing damping coefficients in current electric car models, aiming to enhance user comfort

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Deepika Kamath, M., Rizwan Qaisar, Asima Karim, Adel Elmoselhi, and Bashair M. Mussa. "Evaluation of the Hybrid Learning Model to Teach Human Physiology Experiments." In Future Trends in Education Post COVID-19. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1927-7_3.

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AbstractThe declaration of COVID-19 as a pandemic on March 11, 2020, had profound effects on educational activities worldwide. As a crisis response measure, the educational institutes had to shift from onsite to online teaching and adopt online learning platforms to ensure a smooth delivery of educational content. However, the efficacy of such teaching methods for laboratory experiments partly remains elusive. We aim to explore students’ perspectives and experiences toward a hybrid approach in conducting human physiology experiments. We designed a teaching model that combines onsite and online

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Motta, Martina, Giovanni Maria Conti, Giulia Lo Scocco, and Rachele Didero. "Craftmanship and Digitalization in the Italian Knitwear Industry. A Paradigm Shift for the Narrative of Made in Italy." In Springer Series in Design and Innovation. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-49811-4_67.

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AbstractKnitwear is a consolidated industry in Italy and, at the same time, a typical expression of the Made in Italy paradigm linked to the ideas of craftsmanship. While, on the one hand, knitwear is associated with the idea of craft and manufacturing traditions, on the other hand, it is nowadays produced by numerical control machines (CNC) where the technological contribution and the level of automation are very relevant. The convergence of physical and digital environments, at the heart of the Fashion Industry 4.0 debate, is an established feature of knitwear design practice.In the contempo

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Ismatov, Aziz, and Manuchehr Kudratov. "Redesigning the Law Curriculum in Uzbekistan." In Human Rights Dissemination in Central Asia. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27972-0_6.

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AbstractWhat dangers entail legal education reform in a region or country undergoing a transition from one legal system to another? Why designing a law curriculum with a well-balanced approach between theory and practice, and most importantly, with critical feedback on the transition challenges is vital for training lawyers capable of creating solutions for emerging legal dilemmas? On the example of Uzbekistan, which has been struggling for several decades to shift from socialist toward nonsocialist law smoothly, the present chapter explains the specifics of local legal education reforms and t

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"Smooth shaft pick-up." In Safety with Machinery. Routledge, 2006. http://dx.doi.org/10.4324/9780080460604-29.

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Shahin Mohamed M. "Shaft Resistance of Model Pile in Wet Soil." In Proceedings of the 15th African Regional Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2011. https://doi.org/10.3233/978-1-60750-778-9-202.

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The shaft resistance of smooth and rough model pile in wet sand, silt and clay under static loading is investigated experimentally in a pile-soil shaft resistance test apparatus. This apparatus allows independent control of the boundary stresses of a cylindrical soil specimen in the vertical and horizontal directions. The pile installation technique used was designed to minimize soil disturbance so that the failure criterion for pile shaft friction could be investigated. The load transfer along the shafts of smooth and rough surfaces aluminum model piles in wet soil under static load was measu

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Тези доповідей конференцій з теми "Smooth shaft"

Minowa, Toshimichi, Ken'ichirou Kurata, Hiroshi Kuroiwa, Masahiko Ibamoto, and Masami Shida. "Smooth Torque Control System Using Differential Value of Shaft Speed." In International Congress & Exposition. SAE International, 1996. http://dx.doi.org/10.4271/960431.

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Childs, Dara W., Jing Yang, Luis San Andrés, Jose M. Torres Rueda, and J. Alex Moreland. "Measured Leakage and Rotordynamic Force Coefficients for Two Liquid Annular Seal Configurations: Smooth-Rotor/Grooved-Stator Versus Grooved-Rotor/Smooth-Stator." In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-80073.

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Abstract This paper reports and compares the experimental results of leakage and dynamic force coefficients for two liquid annular pressure seals, one having a smooth-rotor/circumferentially-grooved stator (SR/GS), the other one with a circumferentially-grooved rotor/smooth-stator (GR/SS). Differing only in the grooves’ location, the GR/SS seal’s geometry and operating conditions are representative of those in electrical submersible pumps (ESPs) used for oil recovery. Supplied with an ISO VG2 oil at 46 °C, both seals have the same diameter D = 102 mm, length-to-diameter ratio L/D = 0.5, and no

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Frederick, Jeffrey R., and Mark S. Darlow. "Operation of a Torsionally-Loaded, Composite Shaft Above Two Flexural Critical Speeds." In ASME 1991 Design Technical Conferences. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/detc1991-0300.

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Abstract A graphite/epoxy composite shaft has been successfully balanced to operate above two flexural critical speeds while subjected to a steady torsional load. This experimental investigation has been conducted as part of a research program concerning the optimal design of supercritical composite power transmission shafts for rotorcraft applications. Of particular interest is the use of composite materials in the design of tail rotor and synchronization shafts. Rotating tests were conducted with a composite shaft that models the half length of the tail rotor drive shaft of the AH-64 helicop

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Malkogianni, A. K., A. Tourlidakis, and A. L. Polyzakis. "Comparison Between Two-Shaft Simple and Single-Shaft Recuperated Brayton Cycles Using Different Types of Gaseous Fuels." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-23633.

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Geopolitical issues give rise to problems in the smooth and continuous flow of oil and natural gas from the production countries to the consumers’ development countries. In addition, severe environmental issues such as greenhouse gas emissions, eventually guide the consumers to fuels more suitable to the present situation. Alternative fuels such as biogas and coal gas have recently become more attractive because of their benefits, especially for electricity generation. On the other hand, the use of relatively low heating value fuels has a significant effect to the performance parameters of gas

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Tian Cai, Bo Chi, Yanping Shi, Yunxiang Wu, and Shiyi Shao. "Smooth transfer between the grid-connected mode and stand-alone mode in a marine shaft generation system." In 2016 IEEE International Conference on Power and Renewable Energy (ICPRE). IEEE, 2016. http://dx.doi.org/10.1109/icpre.2016.7871248.

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Klompas, N. "A Frictionally Induced Bladed Disk/Shaft Instability: Physical Explanation of an Experimental Fan Failure." In ASME 1986 International Gas Turbine Conference and Exhibit. American Society of Mechanical Engineers, 1986. http://dx.doi.org/10.1115/86-gt-131.

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A light weight fan with a novel tip damper, designed and rig tested in the sixties, sustained a cataclysmic vibratory failure during a test with consistently smooth running and an explanatory dynamic mechanism was not found. It is now shown that instability potentially could have been induced in a synchronous backward wave by phase shift due to difference between kinetic and static friction in the damper. Moreover, the same mechanism could have augmented the steady forward harmonic wave recorded by Campbell in the twenties.

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Darden, J. Mark, Eric M. Earhart, and George T. Flowers. "Comparison of the Dynamic Characteristics of Smooth Annular Seals and Damping Seals." In ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/99-gt-177.

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Annular seals are known to enhance rotordynamic stability margins and minimize vibration response levels in high-speed rotating machinery. Theoretical predictions for the rotordynamic characteristics of annular seals exist but additional experimental data is needed to properly anchor these results. NASA’s Marshall Space Flight Center (MSFC) has developed an annular seal test rig and facility to experimentally characterize axially-fed annular seals. Annular seals with deliberately roughened stators (i.e. damping seals) have been shown analyticalty to increase stability margins of rocket engine

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Der Hagopian, Johan, and Jarir Mahfoud. "Rotating Machine Critical Speed Suppressing by Using Electromagnetic Actuators." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45598.

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The possibility of suppressing critical speeds by using electromagnetic actuators (EMAs) is assessed numerically and experimentally in this paper. The system studied is composed of a horizontal flexible shaft supported by two ball bearings at one end and a roller bearing that is located in a squirrel cage at the other end. Four identical EMAs supplied with constant current are utilized. The EMAs associated to the squirrel cage constitutes the hybrid bearing. Results obtained, show that the constant current, when applied to the EMAs, produces a shift of the first critical speed toward lower val

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Chakraborty, Pratyaya, Goutam Chakraborty, and Ranjan Bhattacharyya. "Elimination of Sommerfeld Effect in Non-Ideal Systems Using Dry Friction." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-11172.

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Abstract Most of the power sources of mechanical systems can only deliver limited amount of power. Due to this insufficiency of power, often the system fails to achieve a smooth passage through resonance. For example, a non-ideal DC motor driven vibrating system with viscous damping often gets stuck near resonance speed of the system as a large amount of supplied power is utilized to oscillate the system which causes a scarcity of power for the motor speed to go past the resonance condition. However, most of the available power can be used to rotate the motor shaft if somehow the oscillating m

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Lai, Binsheng, Zhi Chen, Jianming Li, and Xin Zhou. "Cause Analysis of Oil Leakage of the Skeleton Oil Seal for a Diesel Engine Pre-Lubricated Oil Pump." In 2022 29th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/icone29-89465.

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Abstract The shaft seal of the pre-lubricated oil pump for the emergency diesel engine in a nuclear power plant is a skeleton oil seal. After about one year of operation, oil will leak from the shaft seal and enter the drive motor, affecting the operation reliability of the emergency diesel engine. By building a numerical simulation platform, the thermal-structure coupling analysis of the skeleton oil seal were carried out and the contact pressure, deformation, Von Misses stress contour and temperature contour of the skeleton oil seal under actual working conditions were studied. Through the e

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