Thematische Bibliographien / Spindle head

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Auswahl der wissenschaftlichen Literatur zum Thema „Spindle head“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 29. Juli 2025

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Zeitschriftenartikel zum Thema "Spindle head"

Horiuchi, Osamu, Mitsuyoshi Nomura, Bo Xiao Ma, Takayuki Shibata, Yoshihiko Murakami, and Masami Masuda. "Influence of Thermal Behavior of Spindle on Machining Accuracy in Micro-Endmilling." Advanced Materials Research 418-420 (December 2011): 2040–45. http://dx.doi.org/10.4028/www.scientific.net/amr.418-420.2040.

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This paper describes on the influence of thermal behavior of spindle on machining accuracy in micro-endmilling. In order to make clear the reasons why the depth of slot varies during slotting repeated, temperatures around the spindle head and the thermal expansion of spindle axis were investigated. The machine tool used for experiment was a small type of vertical machining center. The spindle used for experiment was a ball bearing spindle which rotated at 10000-40000 min-1. The spindle head made of aluminum alloy had various cooling systems for spindle motor and ball bearings, and the temperat

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Ma, Shi Ming, Li Gang Cai, Yong Sheng Zhao, Zhi Feng Liu, Tie Neng Guo, and Qiang Cheng. "Analytical Modeling of the Spindle Shaft of Heavy Load Deflection Angle Milling Head Dynamics Using Timoshenko Beam Model." Advanced Materials Research 443-444 (January 2012): 823–29. http://dx.doi.org/10.4028/www.scientific.net/amr.443-444.823.

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The spindle shaft of heavy load deflection angle milling head is an important functional component of 5-axis CNC machine tool, which has characteristics of high torque and high power, used for large and complex free-form surface processing. The spindle shaft is modeled as Timoshenko’s beam by including the centrifugal force and gyroscopic effects. The effects on inherent characteristic of the spindle shaft of heavy load deflection angle milling head are analyzed owing to axial force and spindle shaft speed. Simultaneously, numerical solution of spindle shaft is gotten. And, the numerical resul

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Guschinskaya, Olga, and Alexandre Dolgui. "A Transfer Line Balancing Problem by Heuristic Methods: Industrial Case Studies." Decision Making in Manufacturing and Services 2, no. 2 (2008): 33–46. http://dx.doi.org/10.7494/dmms.2008.2.2.33.

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The paper deals with the problem of optimal configuration of a type of transfer lines which are equipped with transfer machines. Such machines perform operations with standard modular spindle heads which are activated sequentially. All operations assigned to the same spindle head (block of operations) are executed simultaneously by a set of tools fixed at the spindle head. The quantity of machines and spindle heads used to produce a part with the given productivity rate defines the final cost of the transfer line which must be minimized. To minimize this cost, a combinatorial problem of operat

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Wu, Huai Chao, Shi Tao Chen, Yong Yong He, and Hui Juan Zhang. "Design and Finite Element Analysis of Liquid Sliding Bearing and the Matching Spindle of High-Speed Roller Grinding Head." Applied Mechanics and Materials 278-280 (January 2013): 290–94. http://dx.doi.org/10.4028/www.scientific.net/amm.278-280.290.

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Through analyzing the design methods of liquid sliding bearing and the matching spindle of common roller grinding head, the design methods and ideas of liquid sliding bearing and the matching spindle of high-speed roller grinding head are put forward, and on these bases, a kind of liquid sliding bearing and the matching spindle of high-speed roller grinding head are designed. By means of finite element analysis of the bearing and the matching spindle respectively, it can be known that thermal property of the designed liquid sliding bearing can meet the working demands of high-speed roller grin

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Chen, Shao Hsien, Chin Mou Hsu, Kuo Lin Chiu, and Chu Peng Chan. "Research on High Performance Direct-Driving Motor Applied to Swivel Spindle Head." Applied Mechanics and Materials 701-702 (December 2014): 874–78. http://dx.doi.org/10.4028/www.scientific.net/amm.701-702.874.

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Swivel spindle head is a key component used in five-axis machine tool of high performance and is of great importance in application and design. Nowadays, more and more components are manufactured by high performance multi-axis CNC machine tools, such as components of spaceflight, renewable energy and automobile, etc. Therefore, high performance machine tools of multiple axes are more and more urgently demanded, while Swivel spindle head is one of the most important components for a multi-axis machine tool. Hence, Swivel spindle head is one of the key to developers multi-axis machine tool . The

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Cao, Jin Ling, and Ying Luo. "Dynamic Analysis in Grinding Head of Roller Grinding Machine." Advanced Materials Research 694-697 (May 2013): 259–62. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.259.

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In the article, the vibration resistance of spindle system in grinding head of roller grinding machine is studied by means of harmonic response and modal analysis, by using the method of the transfer matrix, obtained the first five orders of the natural frequency of spindle system. By studying the M84100A type spindle system in grinding head of roller grinding machine, obtained the conclusion that the natural frequency was far from the work frequency, so laid a foundation of the spindle system dynamic design.

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Chen, Shao Hsien, Chin Mou Hsu, Kuo Lin Chiu, and Chu Peng Chan. "The Impact of Different Direct-Driving Motor Design on Swivel Spindle Head." Applied Mechanics and Materials 789-790 (September 2015): 791–94. http://dx.doi.org/10.4028/www.scientific.net/amm.789-790.791.

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Swivel spindle head is a key component used in gantry type five-axis machine tool of high performance and is of great importance in its application and design. Nowadays, more and more components are manufactured by high precision CNC machine tools, such as components of spaceflight, renewable energy and automobile, etc. Therefore, high precision machine tools of multiple axes are more and more urgently demanded, while dual axis rotary head is one of the most important components for a multi-axis machine tool. Hence, it will be a key to develop dual axis spindle head that meets high precision n

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Han, Jian, Li Ping Wang, and Lian Qing Yu. "Modeling and Estimating Thermal Error in Precision Machine Spindles." Applied Mechanics and Materials 34-35 (October 2010): 507–11. http://dx.doi.org/10.4028/www.scientific.net/amm.34-35.507.

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Thermal induced errors are significant factors that affect machine tool accuracy. The deformation of spindle is the main contributor to thermal error. In this paper, the thermal characteristics of the spindle system are investigated. Taking into account the coupling of elastic deformation and temperature, the heat conduction of the spindle system is modeled. The heat of bearings and heat transfer coefficient, and boundary conditions of the spindle are determined. Based on the numerical results, an iterative model of spindle's temperature and thermal deformation are acquired under the actions o

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Sun, Hai Ming, Jing Jin, and Bai Lin Ren. "Precision Lifetime Analysis and Grey Prediction Based on Observation Data for Motorized Spindle." Applied Mechanics and Materials 421 (September 2013): 81–87. http://dx.doi.org/10.4028/www.scientific.net/amm.421.81.

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The stoppage and lifetime of high speed motorized spindle was related to many influence. A total of 31 statistical lifetime data of imported motorized spindles in cylinder head production line were presented, according to these data, and the average cut operation lifetime could reach 8277 hours, and the 8000 hours of average design precision lifetime was validated. It was found that the main influencing factors of motorized spindle lifetime in initial stage were the original manufacturing defects, also in precision lifetime stage and fatigue lifetime stage, the main influencing factors were th

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Shen, Yifeng, Tengfei Tang, and Hanliang Fang. "Geometric Modeling and Error Propagation Analysis of an Over-Constrained Spindle Head with Kinematic Interactions." Machines 12, no. 9 (2024): 651. http://dx.doi.org/10.3390/machines12090651.

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This study presents a comprehensive geometric modeling and error propagation analysis for a 3-degrees-of-freedom spindle head, focusing on an over-constrained parallel mechanism. Four geometric error models are established for the over-constrained spindle head, each considering different combinations of constraint wrenches. A set of sensitivity indices is formulated to evaluate the effectiveness of these models. Comparative sensitivity analysis suggests that a model incorporating all constraint wrenches is suitable for error propagation analysis. Two error propagation indices are introduced to

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Dissertationen zum Thema "Spindle head"

Srněnský, Jan. "Návrh systému automatické výměny vřetenových hlav." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318528.

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The purpose of this thesis is to design system for automatic exchange of spindle heads shared by several machines. Spindle heads are transported between these machines and placed to the position for exchange. The system also allows storing of heads. Requirements for system are load capacity of 2 000 kg and placing a spindle head to the exchange position with precision of ± 0,02 mm. The thesis consists of three parts. The first part involves search of head exchange principles and shows possible ways to transport heads and other elements that could be used in the system. In the next part are sev

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Vazovan, Ľubomír. "Vřeteník a naklápěcí hlava frézovacího multifunkčního obráběcího centra s vodorovnou osou vřetena." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-402637.

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The thesis contains of draft, calculations, CAD model and drawing documentation of the moltifunctional machining center with horizontal axis of spindle. This thesis is one of the four parts with which connection ensue the machine-tool. In the first part of my work, there is a constructional draft of the headstock which will enable milling, turning and drilling. In the introduction of this part is headstock research which is solving the most important parts of the headstock of machine . Consequently, technical calculations are acoomplished. Based on these calculations, a specific constructional

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Sovadina, František. "Návrh vřeteníku soustruhu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443734.

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The thesis deals with the design and construction of headstocks of a turning centre. The aim is to design a spindle with an output of 20 kW and a maximum speed of 5000 1/min. The research part of the thesis is focused on the description of the basic parameters of the headstock and turning centres needed for the construction of the headstock and contains an analysis of the available spindles on the market. The next part of the thesis deals with the selection and calculation of cutting conditions and the necessary parameters. Analytical calculations are then verified using FEM analysis. At the e

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Vyplašil, Jan. "Návrh horizontální výměnné hlavy - VA1 –C." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229757.

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Diploma thesis deals with the concept of interchangeable straight spindle head type VA1-C, used for automatic clamping in 80 kW spindle head from production of TOS Kuřim. Thesis contains survey of interchangeable heads, analysis of the spindle housing, strenght analysis of the spindle with the safety calculations in critical sec-tions and analysis of the clamping mechanism together with the calculation of the camping force, which holds the tools in the spindle. Analysis of the camping mechanisms contains calculation of the contact stress between balls and housings. All results are shown in the

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Nedbal, David. "Návrh manuální pravoúhlé frézovací hlavy určené pro technologické operace na středně těžkých obrobcích." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382413.

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This thesis deals with mechanical design of right-angle manual milling head for headstock of horizontal boring machine of Fermat production. The thesis includes research of milling head types, Fermat production heads, but also heads of competition companies with similar parameters like designed head. Design part of thesis is about describing used components of chosen solution. The thesis includes also technical report describing calculation of load spectrum from machining, design of gears, calculation of reactions in spindle bearings, spindle deformation and control of spindle bearings. The en

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Svoboda, Ondřej. "Konstrukce pravoúhle prodloužené frézovací hlavy pro horizontální vyvrtávačku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231164.

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This thesis deals with design of right-angled elongated milling head for horizontal boring machine of FERMAT production. The thesis includes a detailed research of milling heads, a description of the head´s basic components and certain commercially available head´s comparison. Design part is describe components description and the design. Calculations are focused on determinating of forces generated during machining, setting of loading spectrum and the power load calculating individual gears during machining. In the next part is calculation of the reactions in the spindle bearings included, th

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Tocháček, Jakub. "Návrh zrychlovací hlavy pro vřeteník horizontální vyvrtávačky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241857.

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This thesis deals with conceptual design of spindle speeder head for headstock of horizontal boring machine of FERMAT Company. The thesis includes research part, which is initially given to horizontal boring machines and their accessories and continues with an overview and comparison of spindle speeders that are currently on the market. The work includes technical report, which is aimed on design of the belt drive including the idler pulley. Design of belt drive is based on the output of the calculation program developed by manufacturer of synchronous belts. Calculation part, mainly focused on

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Raszka, Pavel. "Vývoj vřeteníku pro horizontální vyvrtávací centrum." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401042.

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The master´s thesis deals with the design of the headstock for the horizontal boring center and design of the milling head. In the first part of the thesis, a search is made in the field of boring machines, main parts of boring machine headstock and milling heads. Based on this theoretical analysis, the input parameters for the calculation of the tension, power and torque characteristics of the headstock are selected. Subsequently, the design of the headstock and milling head is done using a 3D model.

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Ryšavý, Radek. "Návrh obrábění součásti včetně její montáže." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-402502.

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This diploma thesis is focused on piece production of the component and its subsequent assembly. It is an interchangeable spindle head marked VA1 from the product portfolio of TOS KUŘIM - OS, a.s. The aims of the diploma thesis include the characteristics of the assigned component, the subsequent analysis of the current manufacturing and assembly process. In the price calculations chapter, the direct and indirect input costs for the part production are quantified. Proposals to improve production were presented to the company and offered for possible implementation.

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Matěja, Josef. "Konstrukce multifunkčního obráběcího centra." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230916.

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The Diploma thesis deals with the design solution of multi-functional machining centre, especially with one of its parts – the design of the slide ram and vertical feed incl. the choice of convenient tool heads for the slide ram. The introducing part deals with the numerically controlled machines and centres generally, especially with the portal-type ones. It contains description of individual machine parts including examples of accessories from product plans of domestic and foreign producers. The second part of the Diploma thesis contains calculations and design solution of the slide ram and

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Bücher zum Thema "Spindle head"

1932-, Sances Anthony, ed. Mechanisms of head and spine trauma. Aloray, 1986.

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J, Vinken P., Bruyn G. W, Klawans Harold L, and Braakman R, eds. Head injury. Elsevier Science Publishers, 1990.

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South Carolina. Head & Spinal Cord Injury Task Force. The Head & Spinal Cord Injury Task Force report. South Carolina Developmental Disabilities Council, Office of the Governor, 1992.

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J, Vinken P., Bruyn G. W, Klawans Harold L, and Frankel Hans L, eds. Spinal cord trauma. Elsevier, 1992.

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P, Middaugh John, Johnson Kathleen R. N, Alaska. Division of Public Health. Section of Epidemiology., and National Center for Environmental Health and Injury Control (U.S.). Division of Injury Control., eds. Traumatic head and spinal cord injury in Alaska, 1989. Section of Epidemiology, Division of Public Health, Dept. of Health and Social Services, State of Alaska, 1993.

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Ward, Tena H. Head and spinal cord injury in North Carolina. N.C. Department of Environment, Health, and Natural Resources, Division of Statistics and Information Services, Center for Health and Environmental Statistics, 1991.

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Virginia. General Assembly. Joint Subcommittee Studying the Needs of Head and Spinal Cord Injured Citizens and the Need for Research Pursuant to House Joint Resolution No. 135. Report of the Joint Subcommittee Studying the Needs of Head and Spinal Cord Injured Citizens and the Need for Research Pursuant to House Joint Resolution No. 135: To the Governor and the General Assembly of Virginia. Commonwealth of Virginia, 1989.

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International, Conference on Recent Advances in Neurotraumatology (1986 Cologne West Germany). Advances in neurotraumatology: Multiple injuries, intracranial hematomas, brain death, spinal injuries. Walter de Gruyter, 1989.

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Minnesota. Dept. of Health., Minnesota Injury Prevention Program, and Minnesota Traumatic Brain and Spinal Cord Injury Registry Program., eds. An overview of head and spinal cord injuries in Minnesota. Minnesota Injury Prevention Program, Minnesota Dept. of Health, 1994.

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Buchteile zum Thema "Spindle head"

Wang, Liping, Xiangyu Kong, and Guang Yu. "Torque Feedforward Control of the Parallel Spindle Head Feed Axes." In Advances in Mechanism, Machine Science and Engineering in China. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9398-5_86.

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Wang, Liping, Mengyu Li, and Guang Yu. "A Novel Sensitivity Analysis Method for Geometric Errors of a Parallel Spindle Head." In Intelligent Robotics and Applications. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-6504-5_18.

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Krol, Oleg, and Volodymyr Sokolov. "Modification of the Spindle Head for a Milling Machine with Increased Load Capacity Drive." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-00805-4_9.

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G., Mousavi Said, Gagnol Vincent, and Ray Pascal. "Integration of Drill Torsional-Axial Coupling in a Global Spindle-Self Vibratory Drilling Head Model." In Lecture Notes in Mechanical Engineering. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-37143-1_10.

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Krol, Oleg, Vladimir Sokolov, and Oleksandr Logunov. "Development of a Six-Spindle Turret Head of a Multioperational Machine with a Modernized Drive." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-82746-4_5.

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Heinze, Tassilo, Hans-Joachim Koriath, and Alexander Pavlovich Kuznetsov. "Thermal Growth of Motor Spindle Units." In Lecture Notes in Production Engineering. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34486-2_17.

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AbstractThe paper deals with strategies for numerical compensation of thermo-mechanical deformation of machine tool spindles and the TCP, respectively. Methods for digital modelling and simulating the temperatures and thermo-elastic deformation are presented. This is done by considering the geometry, material data, drive signals and temperature values. The topic of compensating thermo-elastic effects in spindle units is an important topic in manufacturing. Analytical equation and function block methods for measuring and predicting thermal spindle growth are compared. The heat flow model conver

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Krol, Oleg, Vladimir Sokolov, Iryna Adashevska, and A. Manuela Gonçalves. "Development of a 3D Project for a Vertical Spindle Head with a Modernized Bevel Gear Drive." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-94484-0_7.

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Koch, Lukas, Felix Butz, Gordana Krüger, and Frank Döpper. "Thermal Modeling Challenges of High-Speed Motorized Spindles." In Lecture Notes in Production Engineering. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34486-2_18.

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AbstractThis paper investigates the thermal modeling challenges of high-speed motorized spindles up to 40,000 rpm. The thermal expansion and deflection of motorized spindles are critical determinants for the resulting tool center point displacement and the achievable machining accuracy of machine tools. In order to compensate, finite element and reduced physical models (digital twins) therefore require an accurate understanding of the thermal boundary conditions. In motorized spindles, heat sources are of great significance to the resulting temperature field. However, it is very difficult to a

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Jonath, Lucas, Jörg Luderich, Jonas Brezina, Ana Maria Gonzalez Degetau, and Selim Karaoglu. "Improving the Thermal Behavior of High-Speed Spindles Through the Use of an Active Controlled Heat Pipe System." In Lecture Notes in Production Engineering. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34486-2_16.

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AbstractThe thermo-elastic behavior of high-speed spindles has a significant influence on the machine accuracy. The Tool Center Point (TCP) changes continuously, not only due to the different temperature levels and energy inputs during warm-up, full-load and part-load operation, but also during interruptions for workpiece or tool changes. In this paper a heat pipe based tempering system is presented to control the spindle temperature and thus to keep the TCP displacement at a constant level, regardless of speed and load. As effective passive heat transfer components, heat pipes can be used not

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Marani, Enrico, and Ciska Heida. "Cranial Nerves and Cervical Spinal Nerves." In Head and Neck. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-92105-1_12.

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Konferenzberichte zum Thema "Spindle head"

Isci, Hakan, Polat Şendur, Damla Gezegen, Ramazan Ünal, and Nima Heidari. "Customized Pilot Cervical Spine Protection Orthosis Development." In Vertical Flight Society 80th Annual Forum & Technology Display. The Vertical Flight Society, 2024. http://dx.doi.org/10.4050/f-0080-2024-1076.

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Pilots and crew of rotary-wing aircraft can be exposed to inertial and task position stressors that generate pain. Repeated painful exposures with or without tissue damage are precursors to pain sensitization and chronic pain. Chronic pain leads to reduced operational readiness and long-term medical treatment. This study investigated protection orthosis for unrecoverable effects on the cervical spine by heavy helmets and accessories. A user-customized product has been developed and customization has been intended to be done with multi-body dynamic modeling and testing. Although there are many

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Ling, Catherine, Derek Yip-Hoi, and Yoram Koren. "Hole Pattern Identification in Gang Spindle Head Design for Reconfigurable Machining Systems." In ASME 2000 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/detc2000/dac-14279.

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Abstract A systematic methodology for automatic gang spindle head design through parallelism-based operation clustering is an important component in Reconfigurable Machining System (RmS)1 design. Such parallelism-based operation clusters as we refer to them, must satisfy a set of constraints in order to be processed simultaneously on a gang spindle head. A group of operations should be decomposed if any constraint is violated. In doing this, the identification of clusters with identical patterns can potentially lead to savings in machine design and reconfiguration costs. To identify these patt

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Kumar, S. Arun, R. Ashok Kumar, Joel Josheph, C. P. Deric Mario Tony, and R. Badrinath. "Design and deformation analysis of multi-spindle drilling head parts." In THE 8TH ANNUAL INTERNATIONAL SEMINAR ON TRENDS IN SCIENCE AND SCIENCE EDUCATION (AISTSSE) 2021. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0110488.

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Lund, Lance D., and Harvey L. Morton. "A Spherical Grinding Head." In Optical Fabrication and Testing. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/oft.1986.wa6.

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A prototype spherical grinding spindle has been developed for the generation of difficult aspheric surfaces. This device uses a peripheral grinding wheel rotating about two orthogonal axes to produce a spherical grinding surface which wears uniformly during the generation of an aspheric surface. Hydrostatic bearings are used for both axes and the design and performance of these bearings will be discussed. The grinding forces for numerically controlled grinding have been measured using a three axis dynamometer. The subsurface fracture depth has been characterized for both continuous and intermi

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Wang, Kailong, Zhen He, Chengyang Wu, Fufu Yang, and Jun Zhang. "Dynamic Modelling and Analysis of a Novel Redundantly Actuated Parallel Spindle Head." In 2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM). IEEE, 2022. http://dx.doi.org/10.1109/wcmeim56910.2022.10021492.

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Chong, Andrew, Lu Yi, S. X. Chen, and Q. D. Zhang. "Experimental Characterization Techniques for High Performance Hard Disk Drive Ball Bearing Spindle Motors." In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/vib-8331.

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Abstract The key task for the spindle motor in a hard disk drive is to provide stable, reliable and consistent turning power for many years to allow the hard drive to function properly. As hard disks become more advanced, virtually every component in them is required to do more & perform better, and the spindle motor is no exception. Increasing the rotational speed at which the platters spin means that the data can be read off the disk faster, and also reduces rotational latency, the time that the heads must wait for the correct sector number to come under the head. For this reason, there

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Ahmad, Zafarullah, Guido Mühlmeier, Konrad Steinestel, and Matthias Tisch. "Spindle cell lipoma as rare soft tissue tumor of the parotid gland." In 94th Annual Meeting German Society of Oto-Rhino-Laryngology, Head and Neck Surgery e.V., Bonn. Georg Thieme Verlag, 2023. http://dx.doi.org/10.1055/s-0043-1767642.

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Zhang, Ya. "Kinematic Errors Modeling Method of Five-axis Machine Tool with a Universal Spindle Head." In 2017 6th International Conference on Measurement, Instrumentation and Automation (ICMIA 2017). Atlantis Press, 2017. http://dx.doi.org/10.2991/icmia-17.2017.100.

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Mousavi, Said, Vincent Gagnol, and Pascal Ray. "Integration of Drill Torsional-Axial Coupling in Spindle-Vibratory Drilling Head Model for Stability Analysis." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-12049.

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The drilling of deep holes with small diameters remains an unsatisfactory technology, since its productivity is rather limited. The main limit to an increase in productivity is directly related to the poor chip evacuation, which induces frequent tool breakage and poor surface quality. Retreat cycles and lubrication are common industrial solutions, but they induce productivity and environmental drawbacks. An alternative response to the chip evacuation problem is the use of a vibratory drilling head, which enables the chips to be fragmented thanks to the axial self-excited vibration. Contrary to

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Dassanayake, K. M. Muditha, Ken Yamamot, and Masaomi Tsutsumi. "A Methodology for Identifying Inherent Deviations in Universal Spindle Head Type Multi-Axis Machines by Simultaneous Five-Axis Control Motions." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-13440.

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In this paper, two different simulataneous five-axis control motions were newly proposed to identify the ten inherent deviations in universal spindle head type multi-axis machines. The ball bar was used as a measuring device. Both of the two motions were carried out bu using a single setup which was a simple extension bar. This leads to reduce non-productive time of the operator within the machine work space. Three measurments were used to estimate the ten deviations in which two measurements were extracted by means of axial direction motion and the other by tangential direction motion. By usi

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Berichte der Organisationen zum Thema "Spindle head"

Burkhardt, Gary L. NDE (Nondestructive Evaluation) of Black Hawk Helicopter Rotary Wing-Head Spindle Threads Using Electric Current Perturbation. Defense Technical Information Center, 1985. http://dx.doi.org/10.21236/ada196002.

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BIODYNAMIC RESEARCH CORP SAN ANTONIO TX. A PC-Based Head-Spine Model, HSM-PC. Defense Technical Information Center, 1999. http://dx.doi.org/10.21236/ada361392.

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Hicks, Ramona R. Brain-Derived Neurotrophic Factor (BDNF) and Traumatic Brain Injury (Head and Spinal). Defense Technical Information Center, 2000. http://dx.doi.org/10.21236/ada375796.

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Ji, Qing-hui. Efficacy of extracorporeal shock wave combined spinal core decompression for the treatment of patients with femoral head necrosis: a protocol for systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review Protocols, 2020. http://dx.doi.org/10.37766/inplasy2020.4.0092.

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Lin, Qianqian, Yafeng Ren, Kewei Chen, Huijie Duan, Meng Chen, and Chengmei Liu. Efficacy and safety of heat-sensitive moxibustion in the treatment of neurogenic bladder after spinal cord injury：a protocol for systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2021. http://dx.doi.org/10.37766/inplasy2021.5.0071.

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Chou, Roger, Jesse Wagner, Azrah Y. Ahmed, et al. Treatments for Acute Pain: A Systematic Review. Agency for Healthcare Research and Quality (AHRQ), 2020. http://dx.doi.org/10.23970/ahrqepccer240.

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Objectives. To evaluate the effectiveness and comparative effectiveness of opioid, nonopioid pharmacologic, and nonpharmacologic therapy in patients with specific types of acute pain, including effects on pain, function, quality of life, adverse events, and long-term use of opioids. Data sources. Electronic databases (Ovid® MEDLINE®, PsycINFO®, Embase®, the Cochrane Central Register of Controlled Trials, and the Cochrane Database of Systematic Reviews) to August 2020, reference lists, and a Federal Register notice. Review methods. Using predefined criteria and dual review, we selected randomiz

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Single-phase heat transfer and pressure drop characteristics of an integral-spine-fin within an annulus. National Institute of Standards and Technology, 1994. http://dx.doi.org/10.6028/nist.ir.5454.

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