Bibliografie tematiche / Overspeed

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Letteratura scientifica selezionata sul tema "Overspeed"

Autore: Grafiati
Pubblicato: 7 settembre 2024
Ultima modifica: 31 luglio 2025

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Articoli di riviste sul tema "Overspeed"

1

Sidorov, A. A., V. I. Abolmasov, K. O. Kosolapov, A. V. Kuznetsov, and M. A. Arkhipov. "Multifunctional Overspeed Protection Device." Power Technology and Engineering 55, no. 4 (2021): 494–97. http://dx.doi.org/10.1007/s10749-021-01387-z.

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Liao, Aihua, Xiaodong Chai, and Jian Yang. "A Numerical Simulation of Elastoplastic Contact Analysis of Compressor by Overspeeding." Advances in Mechanical Engineering 6 (January 1, 2014): 176897. http://dx.doi.org/10.1155/2014/176897.

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This study analyzes the stress distribution of 3D elastoplastic contact problems by using the FE parametric quadratic programming (PQP) method derived from a 3D FE model based on parametric variational principle (PVP). We numerically analyze a 24-blade compressor by combining centrifugal loading with interference-fit one. To accelerate computation, calculation is simplified by structural modeling via multisubstructuring, aiming to deal with FE-simulated computer aided design (CAD) conveniently. We then analyze the relationships between the maximum residual stresses of the compressor posterior
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3

Cecília-Gallego, Pau, Adrián Odriozola, José Vicente Beltrán-Garrido, and Jesús Álvarez-Herms. "Acute Effects of Different Overspeed Loads with Motorized Towing System in Young Athletes: A Pilot Study." Biology 11, no. 8 (2022): 1223. http://dx.doi.org/10.3390/biology11081223.

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Overspeed is a training method used to improve running speed, although its effects are not supported by consensual scientific evidence. The overspeed stimulus can be boosted by several methods, including motorized towing devices. Our objectives were to analyze the acute effects of three overspeed loads in young athletes and to select optimal loads for training periods. Eight young athletes (16.73 ± 1.69 years) performed one unassisted sprint and three assisted sprints, and kinematic and biomechanical data were compared. Significant increases (p < 0.05) in step velocity and step length were
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Wang, Li, Wentao Sun, Jie Zhao, and Dichen Liu. "A Speed-Governing System Model with Over-Frequency Protection for Nuclear Power Generating Units." Energies 13, no. 1 (2019): 173. http://dx.doi.org/10.3390/en13010173.

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Overspeed is more likely to occur in the process of load rejection or large disturbances for nuclear steam turbines due to the large parameter range and low steam parameters, as well as the power of the low-pressure cylinder accounting for a high proportion of the total power. It is of great significance to study the overspeed characteristics of nuclear power plants (NPPs) to ensure the safe and stable operation of the unit and power grid. According to the characteristics of NPPs, the overspeed protection model and the super-acceleration protection model were established, which were added to t
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Stien, Nicolay, Morten Strate, Vidar Andersen, and Atle Hole Saeterbakken. "Effects of Overspeed or Overload Plyometric Training on Jump Height and Lifting Velocity." Sports Medicine International Open 4, no. 02 (2020): E32—E38. http://dx.doi.org/10.1055/a-1116-0749.

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AbstractThe aim of this study was to examine the effects of overspeed or overload plyometric training on jump height and lifting velocity in resistance trained females without plyometric training experience. Fifty-six participants (age: 21.2±1.7 years; body mass: 65.1±8.2 kg; height: 168.0±5.9 cm) were randomly allocated to either an overspeed (n=18), overload (n=18), or passive control (n=16) group. The two training groups completed 18.7±1.7 sessions consisting of three different plyometric exercises with overspeed or overload over eight weeks. Apart from the external loading, the two trainin
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Jiang, Haicheng, Decheng Wang, Peng Cheng, and Chenxi Shao. "Dynamics Analysis of a Double-Plunger-Type Turbine Overspeed Protection Mechanism." Applied Sciences 13, no. 21 (2023): 11995. http://dx.doi.org/10.3390/app132111995.

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A double-plunger type overspeed protection mechanism has excellent performance in turbine overspeed protection, but the complicated operating principle thereof makes long-term use difficult. In this study, a dynamic model is established to explain the relationship between the motion state and the force situation. Through the analysis of the dynamic model, the specific process of the linked plunger for achieving overspeed protection with tripping action is determined, and the motion law of the inner and outer plungers is clarified. Additionally, the complete solution method and calculation proc
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Eryilmaz, I., L. Pawsey, and V. Pachidis. "Multidisciplinary methodology for turbine overspeed analysis." Aeronautical Journal 122, no. 1257 (2018): 1711–33. http://dx.doi.org/10.1017/aer.2018.100.

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ABSTRACTIn this paper, an integrated approach to turbine overspeed analysis is presented, taking into account the secondary air system dynamics and mechanical friction in a turbine assembly following an unlocated high-pressure shaft failure. The axial load acting on the rotating turbine assembly is a governing parameter in terms of overspeed protection since it governs the level of mechanical friction which acts against the turbine acceleration due to gas torque. The axial load is dependent on both the force coming from secondary air system cavities surrounding the disc and the force on the ro
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Kirke, Brian K., and Benoit Paillard. "Predicted and measured performance of a vertical axis wind turbine with passive variable pitch compared to fixed pitch." Wind Engineering 41, no. 1 (2016): 74–90. http://dx.doi.org/10.1177/0309524x16677884.

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The performance of a 5-m diameter Darrieus vertical axis wind turbine was predicted using both a double multiple streamtube model and a two-dimensional unsteady Reynolds-averaged Navier–Stokes computational fluid dynamics simulation with constant rotational speed for a series of operational points. The actual performance was measured in both fixed and variable pitch modes. The aims were (1) to compare starting torque and peak efficiency in fixed and variable pitch modes and (2) to test an overspeed control mechanism. Starting torque was approximately three times higher in variable pitch mode a
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Moinuddin, Md Khaja. "Automatic Vehicle Overspeed Detection and Recognition." International Journal for Research in Applied Science and Engineering Technology 9, no. VII (2021): 914–23. http://dx.doi.org/10.22214/ijraset.2021.36501.

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Vehiсle speed detection is аn imроrtаnt раrt оf trаffiс mаnаgement system. It рlаys аn imроrtаnt rоle in trасking systems, аutоmаtiс videо surveillаnсe аnd аlsо tо аvоid соllisiоn. This рарer рrороses а methоd tо estimаte the sрeed оf vehiсles оn the highwаys аnd сity аreаs. The рrороsed methоd саn be effeсtively imрlemented tо соntrоl the оver sрeed vehiсles аnd tо fоund guilty in leаding tо trаffiс ассidents. Eасh vehiсle in the videо reсоrded by the саmerа is identified. А bоunding bоx is сreаted оn the identified vehiсle аnd its сentrоid сооrdinаtes аre mаrked. The аnаlysis оf sрeed is dоn
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INOUE, Shinsuke, Hidemitsu NAYA, Tatsushi YABUUCHI, Naoki TAKAYAMA, and Yuki SAITO. "Study of Electronizing Overspeed Detection for Elevator." Proceedings of the Transportation and Logistics Conference 2016.25 (2016): 1207. http://dx.doi.org/10.1299/jsmetld.2016.25.1207.

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Tesi sul tema "Overspeed"

1

Gracie-Orr, Katie. "A blade design methodology for overspeed power regulation of horizontal axis tidal turbines." Thesis, University of Strathclyde, 2017. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=28412.

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Employed in tidal turbines, overspeed power regulation (OSPR) can improve the structural robustness and decrease the complexity associated with active pitch methods, while removing the diffculties of operating in stalled flow. This may be a method by which the cost of tidal energy can be brought down. The aim of this research was to investigate the OSPR method, increase understanding of associated benefits and constraints, and develop a methodology for the design of suitable blades. It is identified that: the challenges to OSPR are higher rotational velocities, leading to increased voltage lev
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Jacobs, Coline. "Modélisation thermomécanique transitoire d'un contact rotor-stator au niveau des joints labyrinthes." Electronic Thesis or Diss., Ecully, Ecole centrale de Lyon, 2024. http://www.theses.fr/2024ECDL0024.

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Les générateurs de gaz sont communément employés pour motoriser des avions ou des hélicoptères et réalisent toujours les étapes de compression-combustion-détente. En régime nominal, les gaz brulés font tourner la turbine qui entraîne le compresseur par le biais de l’arbre moteur. Il arrive que certaines des pièces de l’arbre subissent une défaillance qui ne garantit plus l’assemblage des étages turbine et compresseur. Par conséquence, la turbine entre en configuration libre et amorçe une accélération non-contrôlée qui peut mener à son éclatement. Il s’avère que dans les moteurs d’hélicoptère,
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Hartmann, M. J. "A study to determine why some projects are finished late and overspent with-in Kumba Resources, not withstanding that advanced time planning techniques are freely available and are generally applied." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52146.

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Thesis (MBA)--Stellenbosch University, 2001.<br>ENGLISH ABSTRACT: This study describes a process used to determine critical success factors that are felt to be predictive of timely completion of projects within Kumba Resources. A comprehensive literature review and the knowledge of full time line and project managers who have had experience with projects were used to generate critical success factors that was felt to be crucial to timely completion of projects within Kumba Resources. Eleven items were discovered within Kumba Resources that relate well to the available literature on the s
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Majdell, Robert J. "The effect of overspeed training on sprinting speed." 1988. http://hdl.handle.net/1993/16699.

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Pereira, João Filipe Valente. "Line Overspeed & Leadership Program: Formação e Desenvolvimento de Técnicos Industriais de Enchimento." Master's thesis, 2018. https://hdl.handle.net/10216/114118.

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O objetivo desta dissertação passa pela análise e desenvolvimento de competências de técnicos de operação de enchimento na empresa Super Bock Bebidas, S.A. Com a implementação deste projeto, a empresa visa criar um standard para todas as iniciativas de formação e desenvolvimento dentro da empresa, com um maior foco nos seus técnicos de enchimento. Para que tal fosse possível, procedeu-se inicialmente a uma avaliação das necessidades de formação, quer ao nível das tarefas a desempenhar e competências esperadas de um técnico de enchimento, quer no que diz respeito às competências que estes pos
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Pereira, João Filipe Valente. "Line Overspeed & Leadership Program: Formação e Desenvolvimento de Técnicos Industriais de Enchimento." Dissertação, 2018. https://hdl.handle.net/10216/114118.

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Abstract (sommario):
O objetivo desta dissertação passa pela análise e desenvolvimento de competências de técnicos de operação de enchimento na empresa Super Bock Bebidas, S.A. Com a implementação deste projeto, a empresa visa criar um standard para todas as iniciativas de formação e desenvolvimento dentro da empresa, com um maior foco nos seus técnicos de enchimento. Para que tal fosse possível, procedeu-se inicialmente a uma avaliação das necessidades de formação, quer ao nível das tarefas a desempenhar e competências esperadas de um técnico de enchimento, quer no que diz respeito às competências que estes pos
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Pereira, João Filipe Valente. "Line Overspeed & Leadership Program: Formação e Desenvolvimento de Técnicos Industriais de Enchimento." Dissertação, 2002. https://repositorio-aberto.up.pt/handle/10216/114118.

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Abstract (sommario):
O objetivo desta dissertação passa pela análise e desenvolvimento de competências de técnicos de operação de enchimento na empresa Super Bock Bebidas, S.A. Com a implementação deste projeto, a empresa visa criar um standard para todas as iniciativas de formação e desenvolvimento dentro da empresa, com um maior foco nos seus técnicos de enchimento. Para que tal fosse possível, procedeu-se inicialmente a uma avaliação das necessidades de formação, quer ao nível das tarefas a desempenhar e competências esperadas de um técnico de enchimento, quer no que diz respeito às competências que estes possu
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8

SYUE, YIN-CHENG, and 薛印呈. "THE ORDER oF OVERSPREAD -Runoff Distributional Berm in Biomimicry Design." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/zwa34n.

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Libri sul tema "Overspeed"

1

Ankerl, Guy. Urbanization overspeed in tropical Africa, 1970-2000: Facts, social problems, and policy. INU Press, 1986.

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2

Coelho, Paulo. Overspel: Roman. Uitgeverij De Arbeiderspers, 2014.

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Pauline, Moody, ed. Overspel voor beginners. Sijthoff, 2004.

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Council, Cornwall County. Independent review of Libraries and Information services overspend. Cornwall County Council, 2001.

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United States. National Transportation Safety Board. Overspeed and loss of power on both engines during descent and power-off emergency landing: Simmons Airlines, Inc., d/b/a American Eagle Flight 3641, N349SB, False River Air Park, New Roads, Louisiana, February 1, 1994. The Board, 1994.

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6

Schor, Juliet. The overspent American: Upscaling, downshifting, and the new consumer. HarperPerennial, 1999.

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Schor, Juliet. The overspent American: Upscaling, downshifting, and the new consumer. Basic Books, 1998.

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8

Meulenbelt, Anja. Emancipatie en overspel: Ontrouw, intimiteit, modern moederschap, rivaliteit, mannen als lustobject, als hoerenlopers, als daders en slachtoffers. Sara/Van Gennep, 1993.

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9

Domenicali, Gianluca. Overspeed. Blurb, 2022.

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10

Publishers), PEP (Professional Engineering. Steam Turbine Governing and Overspeed Protection (IMechE Seminar Publications). Wiley, 1998.

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Capitoli di libri sul tema "Overspeed"

1

Unger, Dieter. "Overspeed Governor." In Lifts and Escalators. Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-67822-0_10.

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Andresen, E. Ch, and W. Müller. "Magnetic Shielding of Turbo-Generator Overspeed Test Tunnels." In Electromagnetic Fields in Electrical Engineering. Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-0721-1_28.

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Wu, Wen-Jie, Hua-Zhang, and He-Ming Bao. "Evaluation Method for Heavy-Duty Gas Turbine Overspeed Analysis." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1181-1_62.

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Biswas, Manju, Subhajit Mallick, Shounak Bose, Ghanashyam Nandi, Sourav Banerjee, and Utpal Biswas. "Design of a Vehicle Overspeed Management System Using Blockchain-Assisted IoV." In Communications in Computer and Information Science. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-48879-5_4.

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Song, Jiali, and Shiyu Shang. "Design and Implementation of Intelligent Anti Drunk Driving and Overspeed System." In Advanced Theory and Applications of Engineering Systems Under the Framework of Industry 4.0. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9825-6_10.

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Bai, Long, Jiayi Yang, Jie Wang, and Mingfeng Lu. "An Overspeed Capture System Based on Radar Speed Measurement and Vehicle Recognition." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69066-3_39.

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Nasr, Elie, Elie Kfoury, and David Khoury. "A Pervasive IoT Scheme to Vehicle Overspeed Detection and Reporting Using MQTT Protocol." In Lecture Notes in Information Systems and Organisation. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-10737-6_2.

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Ramos, Helena, and A. Betâmio De Almeida. "Modelling and Practical Analysis of the Transient Overspeed Effect of Small Francis Turbines." In Hydraulic Machinery and Cavitation. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-010-9385-9_80.

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Green, Kenneth A., and Randolph C. Helmink. "Development and Characterization of Overspeed and Cyclic Behavior of Dual Grain Structure Turbine Disks." In Materials Science Forum. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-432-4.1261.

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Karrouchi, Mohammed, Ismail Nasri, Kamal Kassmi, Abdelhafid Messaoudi, and Soufian Zerouali. "Analysis of the Driver’s Overspeed on the Road Based on Changes in Essential Driving Data." In Digital Technologies and Applications. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-29857-8_80.

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Atti di convegni sul tema "Overspeed"

1

Tavrez, Shams, Kushan Kumar, Himanshu Sharma, and Arpna Saxena. "Automatic Vehicle Plate Recognition and Overspeed Detection." In 2024 4th International Conference on Advancement in Electronics & Communication Engineering (AECE). IEEE, 2024. https://doi.org/10.1109/aece62803.2024.10911089.

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Londhe, Gayatri D., Monica Gunjal, Amruta Thorat, Kailash Karad, Pramodkumar Kulkarni, and Armaan Suhel Shaikh. "Image Processing Detection System For Vehicle Overspeed." In 2024 IEEE North Karnataka Subsection Flagship International Conference (NKCon). IEEE, 2024. https://doi.org/10.1109/nkcon62728.2024.10774719.

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Chen, Jie, and Xiaoqing Chang. "Structural design of elevator overspeed governor clamp device." In Third International Conference on Advanced Materials and Equipment Manufacturing (AMEM 2024), edited by Michele Penza and Shunli Wang. SPIE, 2025. https://doi.org/10.1117/12.3069381.

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Yang, Qizhen, Xiaohai Wang, Hongguang Zhang, et al. "A Fast Power Distribution Strategy for Overspeed Deloading Control of Wind Farm." In 2024 IEEE 8th Conference on Energy Internet and Energy System Integration (EI2). IEEE, 2024. https://doi.org/10.1109/ei264398.2024.10991541.

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Dang, Khanh, Rik Meininger, Joseph Gibson, Henry Wiersma, Kenneth Kim, and Michael Szedlmayer. "High Cycle Fatigue Assessment of a Diesel Engine Turbocharger." In Vertical Flight Society 74th Annual Forum & Technology Display. The Vertical Flight Society, 2018. http://dx.doi.org/10.4050/f-0074-2018-12882.

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Many technical papers describe turbocharger turbine/compressor failures caused by foreign object damage, contaminated lube oil, lack of lubrication, high exhaust temperatures, low cycle fatigue, or overspeed. However, High Cycle Fatigue (HCF) is a potential failure mode that has not been widely assessed. This paper describes steps to investigate an HCF fatigue failure of a turbine blade. Metallurgical analysis determined that the failure surfaces are indicative of fatigue and that the initiation location coincided with the location of maximum stress as identified by finite element modal analys
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Kaur, Navjot, Praveen Kumar Malik, Shikha Agarwal, Gopal Krishna, Jaypal Lande, and Shelej Khera. "An Automated Solution for Traffic Safety and Compliance Using Wireless-Enabled Overspeed Detection and Data Logging Using Doppler Radar and Visual Capture for Enhanced Monitoring and Enforcement." In 2025 3rd International Conference on Disruptive Technologies (ICDT). IEEE, 2025. https://doi.org/10.1109/icdt63985.2025.10986534.

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Ramos, Victoria. "Improvement of Inspection and Repair Procedures for GE T700-701D Power Turbine Drive Shaft Assembly Pinning Hardware." In Vertical Flight Society 74th Annual Forum & Technology Display. The Vertical Flight Society, 2018. http://dx.doi.org/10.4050/f-0074-2018-12848.

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Torque indicating issues continue to plague Power Turbine Modules (PTMs) as a top reason for return. These issues can be linked to failed torque and overspeed sensors and PTM torque reference shaft issues including; sticking shafts due to torque stiction and sheared pins connecting PTM drive shafts to torque reference shafts. At the end of the PTM shaft is the pinning hardware for the torque reference shaft. In shipping and during handling of the PTM damage can occur causing the pin to shear and fail. They can fail due to inadvertent contact with the PTM or torque shaft, during shipping and ha
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Orsagh, Rolf, Theodore Meyer, and Stephen Hesler. "Risk Assessment of Nuclear Steam Turbine Destructive Overspeed." In International Joint Power Generation Conference collocated with TurboExpo 2003. ASMEDC, 2003. http://dx.doi.org/10.1115/ijpgc2003-40199.

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In electric power generation facilities, steam turbine disk rupture due to overspeed can produce high-energy projectiles that may penetrate the turbine casing and damage other plant systems. While such projectiles could seriously damage a fossil fired plant, the risks are even greater for nuclear plants where a projectile could strike safety related systems. Plant maintenance personnel routinely test overspeed protection systems according to the manufacturer’s recommended schedule, but such tests require interruptions in normal steady state operation, and sometimes lead to undesirable events s
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Wu, Yuhan, Hanbo Wu, Chengjun Jia, et al. "Scalable Overspeed Item Detection in Streams." In 2024 IEEE 40th International Conference on Data Engineering (ICDE). IEEE, 2024. http://dx.doi.org/10.1109/icde60146.2024.00094.

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Simon, Aaron, and Denis Li. "Case Study of BHA Damages Caused by Sudden Release of Trapped Torque During Drill Pipe Connection Process." In SPE/IADC International Drilling Conference and Exhibition. SPE, 2025. https://doi.org/10.2118/223695-ms.

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Abstract This paper presents a study of three cases in which release of trapped torque occurs during the drill pipe connection process, leading to bottomhole assembly (BHA) damages. It highlights the contributing factors and root causes of the trapped torque release events, and it proposes prevention and mitigation measures to prevent these transient events. In recent years, the industry has sought to reduce connection times to reduce overall well construction cycle time. Over the same period, the industry has upgraded to high-performance motors and aggressive bits which are more capable of tr
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Rapporti di organizzazioni sul tema "Overspeed"

1

Sozer, M. C. Analysis of HFIR pressurizer pump overspeed transients and relief valve performance. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10179096.

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Ornstein, H. L. Operating experience feedback report -- turbine-generator overspeed protection systems: Commercial power reactors. Volume 11. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/71337.

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Warner, Max, and Ben Zaranko. Home Office budgeting and asylum overspends. The IFS, 2024. http://dx.doi.org/10.1920/co.ifs.2024.0053.

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