Academic literature on the topic 'Axial force'

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Journal articles on the topic "Axial force"

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Wang, Hai Yan, and Xu Da Qin. "Research on the Relation between Cutting Parameters and Axial Cutting Force in Helical Milling Process." Advanced Materials Research 690-693 (May 2013): 2480–83. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.2480.

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The select of cutting parameters is not only directly related to the productivity, but also related to the change of cutting forces. Axial cutting force is too large to be ignored in the helical milling process. In this paper, the axial forces in helical milling of Cold die steel under different cutting parameters are measured, and the regression model of the axial force about the change of the cutting parameters is established, the influence of the cutting parameters on the axial cutting force is analyzed through the experimental results and the regression models respectively. The main purpos
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Spakovszky, Z. S. "Analysis of Aerodynamically Induced Whirling Forces in Axial Flow Compressors." Journal of Turbomachinery 122, no. 4 (2000): 761–68. http://dx.doi.org/10.1115/1.1312801.

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A new analytical model to predict the aerodynamic forces in axial flow compressors due to asymmetric tip-clearance is introduced. The model captures the effects of tip-clearance induced distortion (i.e., forced shaft whirl), unsteady momentum-induced tangential blade forces, and pressure-induced forces on the spool. Pressure forces are shown to lag the tip-clearance asymmetry, resulting in a tangential (i.e., whirl-inducing) force due to spool pressure. This force can be of comparable magnitude to the classical Alford force. Prediction and elucidation of the Alford force is also presented. In
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Biegus, Antoni, and Dariusz Czepiżak. "Equivalent stabilizing force of members parabolically compressed by longitudinally variable axial force." MATEC Web of Conferences 262 (2019): 09004. http://dx.doi.org/10.1051/matecconf/201926209004.

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The EN 1993-1-1 model of equivalent stabilizing force qd and Rd of bracings conservatively assumes that the braced member is compressed with a force constant along its length. This assumption is incorrect since the axial force distribution varies along the length of the braced member. As a result, the braced member generates equivalent stabilizing forces different from equivalent force qd and Rd acc. to EN 1993-1-1. This paper presents parametric studies of the equivalent stabilizing forces of the braced, compression top chord of roof trusses. The girder’s top chord is compressed parabolically
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Zhang, Fu You, Ming Gu, Yun Song, and Song Xu. "Study on Isolated Layer Mechanics Character of Combined Base Isolated Structure Based on Axial Forces Redistribute." Applied Mechanics and Materials 166-169 (May 2012): 627–31. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.627.

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Abstract:Combined isolation system is combined with rubber bearings which provide resilience forces and sliding isolated bearings which provide damp. According to the rule of axial forces redistributing between two kinds of bearings under earthquake, a calculating method considering the vertical force redistribute of isolation layer was given. With this method, the results of an example show that axial force will transfer from rubber bearings to sliding isolated bearings along with the horizontal displacement of isolation layer. The bigger the displacement is the more axial force transfers. So
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SHAABAN, H., G. GIAKAS, M. BOLTON, et al. "The Load-Bearing Characteristics of the Forearm: Pattern of Axial and Bending Force Transmitted Through Ulna and Radius." Journal of Hand Surgery 31, no. 3 (2006): 274–79. http://dx.doi.org/10.1016/j.jhsb.2005.12.009.

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A biomechanical study was performed on 12 cadaveric arms to define the normal profiles of force transmission through the ulna and radius and demonstrate the effect on these of simulated injury of the distal radioulnar joint (DRUJ). Strain gauges were used to measure the axial and bending forces transmitted through each bone. Axial force transmitted through the ulna is, broadly, reciprocal to that seen in the radius, with the greatest force seen in supination. In all 12 arms, axial loading of the hand created an anterior bending force (to create a posterior convexity) in the distal radius. Axia
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Kim, Chun Ho. "Experimental Study of Sliding Load According to Changes of Axial Bolt Clamping Force of H-Beam Affected by Pure Bending." Key Engineering Materials 321-323 (October 2006): 344–47. http://dx.doi.org/10.4028/www.scientific.net/kem.321-323.344.

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Despite being an important element to connect the major building materials in a steel bridge, bolt joints have not been sufficiently studied in terms of each defect generated in them. Among defects in bolt joints of steel bridges currently in public use, the most frequently occurring problem is the insufficient axial bolt clamping force. To measure sliding load caused by change in axial bolt clamping force, a test sample of H-beam applied with pure bending was created and static tests were administered. Based on the axial bolt clamping force of the test sample where the designed axial bolt cla
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Liu, Yongsheng, Chengming Liu, Yongsheng Zhang, et al. "Influence of Axial Installation Deviation on the Hydraulic Axial Force of the 1000 MW Francis Runner in the Rated Operating Condition." Energies 16, no. 4 (2023): 1878. http://dx.doi.org/10.3390/en16041878.

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To study the influence of the axial installation deviation of the runner on the hydraulic axial force of the 1000 MW Francis turbine unit, geometric models of the full flow passage of the Francis turbine with the runner sinking in the axial direction by 0, 0.5, 1, 1.5, 2.5, 4, and 5.5 mm were established. The geometric models of the upper crown clearance, lower band clearance, and pressure balance pipes were also built. The SST turbulence model was used in the CFD setup to numerically simulate the flow in the Francis turbine with different runner installation sinking values. The results show t
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Wang, Jun Ming, Fu Yuan Tong, and Xiao Xue Li. "3D Dynamic Finite Element Simulation Analysis of Single Abrasive Grain during Profile Grinding with Axial Feed." Advanced Materials Research 680 (April 2013): 410–16. http://dx.doi.org/10.4028/www.scientific.net/amr.680.410.

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By simplifying the geometric shape of abrasive grain in a cone-shape, the authors conduct the 3D dynamic finite element simulation on profile grinding with axial feed by single abrasive grain using deform-3D software. Analysis is made on the influence upon the grinding forces in case of the same grinding speed, the same grinding depth and the same friction factor between wheel and workpiece at different axial feed. The results show that the normal force and the tangential force increase with the increase of axial feed, but the axial force decreases with the axial feed.
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Martsynkovskyy, Volodymyr, Oleksii Zhulov, and Czeslaw Kundera. "Analysis of the Radial-Axial Oscillations of the Rotor of a High-Speed Pump." Applied Mechanics and Materials 630 (September 2014): 341–49. http://dx.doi.org/10.4028/www.scientific.net/amm.630.341.

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The joint radial-axial oscilations of onemass model of rotor of high-speed pump are considered taking into account hydrodynamic forces, arising up in the radial clearance of annular seals. Connection of axial oscilations with radial is conditioned by dependence of conductivity of annular throttle, consequently, and axial force of balancing device, from the excentricity of shaft in the annular collar. amplitude and phase frequency characteristics of the forced oscilations, excited by harmonically changing pressure and static unbalance.
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Liu, Cheng, Chen Jin, Meng Guo, Qingdong Yan, and Wei Wei. "Research on the Influence of Charging Oil Conditions on the Axial Force of Hydraulic Torque Converter." Machines 11, no. 7 (2023): 730. http://dx.doi.org/10.3390/machines11070730.

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The hydraulic torque converter is a critical component in high-power tracked vehicles such as bulldozers or bridge machines. Its axial force has a significant impact on the reliability and load-carrying capacity of the transmission system, which is greatly influenced by the charging oil conditions. To investigate the axial force characteristic of the torque converter and its charging oil effects, a computational fluid dynamics (CFD) method is established by considering inner and outer leakage regions, as well as inlet and outlet channels. Additionally, a novel axial force-testing method is pro
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Dissertations / Theses on the topic "Axial force"

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Jordan, Alexander D. W. (Alexander David Weigert). "Designing for forces : an early-stage design program for axial-force structures." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/65738.

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Thesis (S.B. in Art and Design)--Massachusetts Institute of Technology, Dept. of Architecture, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 64).<br>Structures that carry most of their load through the axial forces of tension or compression are more materially efficient than standard structures. However, they are not as straightforward to design since the forces in the structure depend on shape. The traditional method of form finding for such axial force structures is to create physical hanging models. These models are slow to produce and difficult t
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Iuzzolino, Theresa V. (Theresa Voss) 1971. "An axial force sensor for a prosthetic knee." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/46699.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.<br>Includes bibliographical references (leaves 45-46).<br>by Theresa V. Iuzzolino.<br>M.Eng.<br>S.B.
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Bhattacharyya, A. Acosta Allan J. "Internal flows and force matrices in axial flow inducers /." Diss., Pasadena, Calif. : California Institute of Technology, 1994. http://resolver.caltech.edu/CaltechETD:etd-03012005-141633.

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Gebman, Michael. "Axial force transfer mechanisms within cast-in-steel-shell piles /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC IP addresses, 2006. http://wwwlib.umi.com/cr/ucsd/fullcit?p3238515.

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Arnold, Graham Phillip. "Development of a tri-axial (vertical and shear) force measurement foot platform." Thesis, University of Dundee, 2010. https://discovery.dundee.ac.uk/en/studentTheses/544efdc8-a1db-443e-a3e6-315e3f32df00.

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Plantar foot stress causing foot ulceration is a diabetic complication causing major economic burden throughout the world. It has long been thought that shear stresses on the plantar surface of the foot are a major contributing factor to the formation of these ulcers. Although there are many instruments available that measure the vertical foot pressure (vertical forces), there are currently no commercially available instruments to measure the horizontal or shear forces. It is the aim of this project to develop a platform instrument capable of measuring the three dimensional forces (i.e. vertic
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Li, Xinrong. "Reinforced concrete columns under seismic lateral force and varying axial load." Thesis, University of Canterbury. Civil Engineering, 1994. http://hdl.handle.net/10092/7593.

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The project is carried out with the intention to study the strength and ductility of reinforced concrete columns subjected to simulated seismic horizontal loading and varying axial load. First, an extensive review of previous research on the behaviour of reinforced concrete members and hysteretic modelling is provided. Then, the experimentally investigation which involves testing a total of nine reinforced concrete specimens under simultaneously cyclic lateral loading and varying axial load is carried out. The first series of six reinforced concrete column units were tested to obtain the var
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Chenaghlou, Mohammad Reza. "Semi-rigidity of connections in space structures." Thesis, University of Surrey, 1997. http://epubs.surrey.ac.uk/800044/.

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Nanou, Katerina. "Design of open cold rolled sections under axial force and bending moment." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324988.

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Castori, Giulia. "Interaction between axial force, shear and bending moment in reinforced concrete elements." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8519/.

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Il collasso di diverse colonne, caratterizzate da danneggiamenti simili, quali ampie fessure fortemente inclinate ad entrambe le estremità dell’elemento, lo schiacciamento del calcestruzzo e l’instabilità dei ferri longitudinali, ha portato ad interrogarsi riguardo gli effetti dell’interazione tra lo sforzo normale, il taglio ed il momento flettente. Lo studio è iniziato con una ricerca bibliografica che ha evidenziato una sostanziale carenza nella trattazione dell’argomento. Il problema è stato approcciato attraverso una ricerca di formule della scienza delle costruzioni, allo scopo di met
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Hickok, Mark D. "Effects of bit type on maximum torque and axial force using manual screwdrivers." Thesis, Marquette University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1548501.

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<p> The screwdriver is a tool that has been among the most widely used hand tools for decades and continues to be used in the workplace to perform a variety of fastening tasks. Advancements in fastener technology have been complemented by the development of new types of screwdriver bits. While designs may vary, so do the force application requirements placed on the tool user. The primary objective of this experiment is to analyze the relationship between user torque and screwdriver bit design. A further objective is to utilize the results to develop an effort metric by which bits of differe
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Books on the topic "Axial force"

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S, Dhadwal Harbans, and NASA Glenn Research Center, eds. Simultaneous optical measurements of axial and tangential steady-state blade deflections. National Aeronautics and Space Administration, Glenn Research Center, 1999.

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S, Dhadwal Harbans, and NASA Glenn Research Center, eds. Simultaneous optical measurements of axial and tangential steady-state blade deflections. National Aeronautics and Space Administration, Glenn Research Center, 1999.

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Abdulrhman, A. Plastic limit analysis of circular cylinders under combined edge moment, shear and axial force. UMIST, 1997.

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Karl, Owen A., and United States. National Aeronautics and Space Administration., eds. Forced response testing of an axi-centrifugal turboshaft engine. National Aeronautics and Space Administration, 1996.

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Blair, A. B. Supersonic axial-force characteristics of a rectangular-box cavity with various length-to-depth ratios in a flat plate. Langley Research Center, 1986.

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Barros, Helena, Joaquim Figueiras, Carla Ferreira, and Mário Pimentel. Design of Reinforced Concrete Sections Under Bending and Axial Forces. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-80139-7.

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Cuellar, Alvaro F. Measurement of synchronous forces and flow non-uniformity in an axial compressor. Naval Postgraduate School, 1997.

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Val'eho, Mal'donado, and Nikolay Chaynov. Calculation of kinematics and dynamics of inline piston engines. INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1058850.

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The textbook discusses the kinematics and dynamics of inline piston internal combustion engines with axial and deaxial crank mechanism. The necessary material for calculating the forces and moments acting in the engine is given, the balancing of engines, the construction of vector diagrams of pressure on the crankshaft bearings are considered, examples of calculations are given.&#x0D; Meets the requirements of the federal state educational standards of higher education of the latest generation.&#x0D; For students of higher educational institutions studying in the field of training "Energy engi
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Hyer, M. W. Innovative design of composite structures: Axisymmetric deformations of unsymmetrically laminated cylinders loaded in axial compression : semiannual status report. College of Engineering, Virginia Polytechnic Institute and State University, 1990.

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J, Minguet Pierre, O'Brien T. Kevin, and Langley Research Center, eds. A method for calculating strain energy release rates in preliminary design of composite skin/stringer debonding under multi-axial loading. National Aeronautics and Space Administration, Langley Research Center, 1999.

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Book chapters on the topic "Axial force"

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Toniolo, Giandomenico, and Marco di Prisco. "Centred Axial Force." In Reinforced Concrete Design to Eurocode 2. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-52033-9_2.

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Toniolo, Giandomenico, and Marco di Prisco. "Eccentric Axial Force." In Reinforced Concrete Design to Eurocode 2. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-52033-9_6.

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Lyle, Stephen N. "Self-Force for Axial Linear Acceleration." In Self-Force and Inertia. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-04785-5_7.

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Sheng, Jianchao, Jiuchun Sun, Donglai Jiang, Yuanjie Xiao, Rundong Lv, and Zhe Wang. "Research on Axial Force Coherence of Steel Support Based on Active Control." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1748-8_19.

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AbstractUsing servo steel support system for active control of deformation during foundation fit excavation has high superiority. To investigate the coherence of the servo support axial force, PLAXIS 3D is used to carry out numerical analysis on the coherence of the axial force applied by the construction and compare with the field test results; Field tests were conducted on the diaphragm wall joint deformation during the axial force application based on the principle of the generation of axial force coherence. The results show that the farther away from the active axial force, from which suff
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Unsworth, John F. "Design of Axial Force Steel Members." In Design and Construction of Modern Steel Railway Bridges. CRC Press, 2017. http://dx.doi.org/10.1201/9781315120775-6.

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Islam, M. Rashad, Md Abdullah Al Faruque, Bahar Zoghi, and Sylvester A. Kalevela. "Axial Force, Shear Force and Bending Moment in Beams." In Engineering Statics. CRC Press, 2020. http://dx.doi.org/10.1201/9781003098157-7.

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Adams, Maurice L. "Radial and Axial Rotor Force Design Technology." In Rotating Machinery Research and Development Test Rigs. CRC Press, 2017. http://dx.doi.org/10.1201/9781315116723-1.

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Xu, Tong, Wei Sun, Wenyu Tan, and Shuai Feng. "Numerical Simulation of Ultimate Bearing Capacity of Corroded Pipeline under Coupling Load." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-5814-2_19.

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AbstractBased on the ductile damage theory of metal materials, this paper systematically studies the ultimate bearing capacity of corroded pipeline subjected to axial force, bending moment and pressure by using fluid cavity simulation technology. For pipelines with different corrosion characteristics, the interaction diagram of the bearing capacity of corroded pipeline is established by considering the coupling effect of medium properties, pressure, external axial force and bending moment. The numerical simulation results show that the depth of corrosion strongly affects the bearing capacity o
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Ye, Jinquan, Rui Dai, and Jiankun Li. "Chassis Bolts Axial Force Attenuation Calculation and Verification." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-3842-9_5.

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Sugiyama, Yoshihiko, Mikael A. Langthjem, and Kazuo Katayama. "Pinned-Pinned Columns under a Pulsating Axial Force." In Dynamic Stability of Columns under Nonconservative Forces. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-00572-6_13.

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Conference papers on the topic "Axial force"

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Fu, Chong, Penglin Yang, Bing Li, and Lijian Li. "Design and simulation analysis of two dimensional axial torque force sensors." In International Conference on Mechatronics and Mechanical Engineering (ICMME 2024), edited by Yucheng Jiang. SPIE, 2024. http://dx.doi.org/10.1117/12.3037376.

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Soong, Wen L., Emad Roshandel, Zhi Cao, Amin Mahmoudi, and Solmaz Kahourzade. "Axial Force Negative Stiffness in Axial-Flux Electric Machines." In 2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers). IEEE, 2023. http://dx.doi.org/10.1109/intermagshortpapers58606.2023.10228209.

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Spakovszky, Z. S. "Analysis of Aerodynamically Induced Whirling Forces in Axial Flow Compressors." In ASME Turbo Expo 2000: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/2000-gt-0418.

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A new analytical model to predict the aerodynamic forces in axial flow compressors due to asymmetric tip-clearance is introduced. The model captures the effects of tip-clearance induced distortion (i.e. forced shaft whirl), unsteady momentum-induced tangential blade forces and pressure induced forces on the spool. Pressure forces are shown to lag the tip-clearance asymmetry, resulting in a tangential (i.e. whirl-inducing) force due to spool pressure. This force can be of comparable magnitude to the classical Alford force. Prediction and elucidation of the Alford force is also presented. In par
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Chaojun, Yang, Wu Yingzhi, Liu Kang, Li Zhibao, Zhang Weifeng, and Liu Ming. "Analysis for Axial Force of Slotted-Type Axial-Flux Magnetic Coupler." In 2017 5th International Conference on Mechanical, Automotive and Materials Engineering (CMAME). IEEE, 2017. http://dx.doi.org/10.1109/cmame.2017.8540178.

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Hassanpour, Pezhman A., Chris T. Wong, Patricia M. Nieva, and Amir Khajepour. "Axial Force Regulation in MEMS Resonant Sensors." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-12676.

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In this paper, a passive mechanism is proposed for regulating the axial forces due to thermal stresses induced in MEMS resonant sensors. It is shown that by using this mechanism, one can control the axial force or thermal stresses to be compressive or tensile, or zero. An analytical model and a finite element model are developed for this study. It is shown that the analytical model is a powerful tool to predict the overall response and/or optimize the design, while the finite element model can be used for fine tuning and obtaining more accurate results.
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Rahn, Christopher D., and C. D. Mote. "Axial Force Stabilization of Transverse Beam Vibration." In ASME 1993 Design Technical Conferences. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/detc1993-0217.

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Abstract An axial force stabilizes the transverse vibration of a beam with translational and rotational boundary springs and arbitrary geometry. The nonlinearly coupled, longitudinal and transverse equations of motion of the beam with axial force control are derived and simplified using a quasistatic assumption. Lyapunov’s direct method and an invariance principle for distributed systems show that an axial damper can asymptotically and simultaneously stabilize all transverse vibration modes. Asymptotic stability is guaranteed if the eigenvalues are simple and nonzero and if there are no intern
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Rhew, Ray. "Strain-Gage Balance Axial Section Design Optimization Using Design of Experiments." In 2005 U.S. Air Force T&E Days. American Institute of Aeronautics and Astronautics, 2005. http://dx.doi.org/10.2514/6.2005-7600.

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Cui, Ze, Zengjun Han, Hongwei Pan, Yanming Shao, and Danjie Zhu. "Design of a 3-axial force/torque sensor for arthroscopy force sensing." In 2011 IEEE International Conference on Mechatronics and Automation (ICMA). IEEE, 2011. http://dx.doi.org/10.1109/icma.2011.5985664.

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Pandya, Hardik J., Jun Sheng, and Jaydev P. Desai. "Towards a tri-axial flexible force sensor for catheter contact force measurement." In 2016 IEEE SENSORS. IEEE, 2016. http://dx.doi.org/10.1109/icsens.2016.7808954.

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Clijnen, Joeri, Dominiek Reynaerts, and Hendrik Van Brussel. "Design of an optical tri-axial force sensor." In Photonics Fabrication Europe, edited by Yoseph Bar-Cohen. SPIE, 2003. http://dx.doi.org/10.1117/12.472043.

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Reports on the topic "Axial force"

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Graham, G. M., M. Islam, and K. C. Fang. Nonlinear Normal and Axial Force Indicial Responses for a Two Dimensional Airfoil. Defense Technical Information Center, 1991. http://dx.doi.org/10.21236/ada247196.

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Shim, D. J., Gery Wilkowski, Mohammed Uddin, Sureshkumar Kalyanam, and P. Mincer. PR-276-094509-R01 Develop Fracture Initiation Criteria for High-Strength Steel Line Pipe Phase II. Pipeline Research Council International, Inc. (PRCI), 2013. http://dx.doi.org/10.55274/r0010072.

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This report summarizes the major findings from a PRCI Project on developing fracture initiation criteria for axial flaws (both through-wall and surface flaws) in high-strength line-pipe materials. This work was originally done on the basis to see if improvements were needed for higher-grade steels, but interestingly there were several outcomes that affect predictions for all piping steels. One of the outcomes of this work is a new correlation between Charpy USE and J-R curve for high-strength materials. Although it is based on limited data, it was demonstrated that there is significant differe
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Chell. PR-015-063513-R01 Evaluating Failure Susceptibility Due to Axial Cracks in Pressurized Line Pipe. Pipeline Research Council International, Inc. (PRCI), 2008. http://dx.doi.org/10.55274/r0010971.

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A best estimate methodology based on elastic-plastic fracture mechanics technology was developed that uses the cract tip driving force parameter to support the remaining fatigue life calculations. Development of this technology is facilitated by finite element analysis.
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Wang, Wei, Michael Brown, Matteo Ciantia, and Yaseen Sharif. DEM simulation of cyclic tests on an offshore screw pile for floating wind. University of Dundee, 2021. http://dx.doi.org/10.20933/100001231.

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Screw piles need to be upscaled for offshore use e.g. being an alternative foundation and anchor form for offshore floating wind turbines, although the high demand of vertical installation forces could prevent its application if conventional pitch-matched installation is used. Recent studies, using numerical and centrifuge physical tests, indicated that the vertical installation force can be reduced by adopting over-flighting which also improved axial uplift capacity of the screw pile. The current study extends the scope to axial cyclic performance with respect to the installation approach. Us
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Zhou. L52284 Upheaval Buckling Limit State Function for Onshore Gas Pipelines. Pipeline Research Council International, Inc. (PRCI), 2008. http://dx.doi.org/10.55274/r0010669.

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For buried pipelines a well established problem has been that of upheaval buckling. This occurs because the fluid is usually pumped through the pipes at elevated temperatures causing the pipeline to experience thermal expansion which, if restrained, leads to an increase in the axial stress in the pipeline possibly resulting in a buckling failure. A secondary phenomenon that has also been identified, particularly in loose sands and silts, involves floatation of pipelines through the backfill material, usually shortly after burial. The upheaval buckling limit state function developed in this pro
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Lai, Chin-Ta, and Joel Conte. Dynamic Modeling of the UC San Diego NHERI Six-Degree-of-Freedom Large High-Performance Outdoor Shake Table. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, 2024. http://dx.doi.org/10.55461/jsds5228.

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The UC San Diego Large High-Performance Outdoor Shake Table (LHPOST), which was commissioned on October 1, 2004 as a shared-use experimental facility of the National Science Foundation (NSF) Network for Earthquake Engineering Simulation (NEES) program, was upgraded from its original one degree-of-freedom (LHPOST) to a six degree-of-freedom configuration (LHPOST6) between October 2019 and April 2022. The LHPOST6 is a shared-use experimental facility of the NSF Natural Hazard Engineering Research Infrastructure (NHERI) program. A mechanics-based numerical model of the LHPOST6 able to capture the
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Mohr. L52241 Strain-Based Design - Strain Concentration at Girth Welds. Pipeline Research Council International, Inc. (PRCI), 2006. http://dx.doi.org/10.55274/r0010386.

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Strain-based design is used for many situations for pipelines where the loadings from forces other than the internal pressure can be the largest generators of stress and strain in the pipe wall. Such loadings can be generated by soil subsidence, frost heave, thermal expansion and contraction, landslides, pipe reeling, pipe laying, and several other types of environmental loading. Designing based on strain for these cases has an advantage over designing based on stress because these loadings tend to apply a given displacement rather than a given force to the pipe. Standards are much better deve
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Honegger. L51990 Extended Model for Pipe Soil Interaction. Pipeline Research Council International, Inc. (PRCI), 2003. http://dx.doi.org/10.55274/r0010152.

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This program contributes to maintaining and improving the integrity and safety of existing pipelines with regard to ground movement hazards, and reducing the capital costs of new pipeline systems. The research program focused on the axial, lateral and complex loading of pipeline due to soil movements. It includes (1) a literature review: it presents significant issues related to modeling pipe-soil interaction with a focus to recent development since ASCE (1984); (2) axial loading: it includes a summary of the methods to estimate the axial soil forces on pipeline and recent field measurements o
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Mojidra, Rushil, and Keri Ryan. Influence of Vertical Ground Motion on Bridges Isolated with Spherical Sliding Bearings. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, 2019. http://dx.doi.org/10.55461/rynq3624.

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The motivation for this project developed from testing of a full scale building isolated with triple friction pendulum bearings on the E-defense shake table in Japan. The test demonstrated experimentally that the vertical component of ground motion can amplify both the base shear and the story acceleration in the isolated building. Vertical shaking introduced high-frequency variation in the axial force of the bearings, and, consequently, a high-frequency component in the bearing lateral force, which excited higher structural modes in the building. Since vertical bridges are flexible in the ver
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Honegger, Wijewickreme, and Monroy. L52325 Assessment of Geosynthetic Fabrics to Reduce Soil Loads on Buried Pipelines - Phase I and II. Pipeline Research Council International, Inc. (PRCI), 2011. http://dx.doi.org/10.55274/r0010398.

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High soil loads on buried pipelines can lead to unacceptably high pipeline strains developed in response to permanent ground displacement. Common causes of permanent ground displacement are related to slope instability as a result of heavy precipitation or ground subsidence. In addition, several permanent ground displacement hazards are related to earthquakes including surface fault displacement, triggered landslide movement, surface ground settlement related to liquefaction, and lateral spread displacement. Result: Four specific areas of investigation were completed: 1.Performed baseline test
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