Academic literature on the topic 'Axial-bending coupling'

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Journal articles on the topic "Axial-bending coupling"

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Al-Janabi, Musab Aied Qissab. "Exact Stiffness Matrix for Nonprismatic Beams with Parabolic Varying Depth." Journal of Engineering 19, no. 10 (2023): 1212–25. http://dx.doi.org/10.31026/j.eng.2013.10.02.

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In this paper, an exact stiffness matrix and fixed-end load vector for nonprismatic beams having parabolic varying depth are derived. The principle of strain energy is used in the derivation of the stiffness matrix. The effect of both shear deformation and the coupling between axial force and the bending moment are considered in the derivation of stiffness matrix. The fixed-end load vector for elements under uniformly distributed or concentrated loads is also derived. The correctness of the derived matrices is verified by numerical examples. It is found that the coupling effect between axial f
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Berger, Se´bastien, Olivier Bonneau, and Jean Fre^ne. "Influence of Axial Thrust Bearing on the Dynamic Behavior of an Elastic Shaft: Coupling Between the Axial Dynamic Behavior and the Bending Vibrations of a Flexible Shaft." Journal of Vibration and Acoustics 123, no. 2 (2000): 145–49. http://dx.doi.org/10.1115/1.1355243.

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This paper presents the nonlinear dynamic behavior of a flexible shaft. The shaft is mounted in two journal bearings and the axial load is supported by a hydrodynamic thrust bearing. The coupling between the axial thrust bearing behavior and the bending vibrations of the shaft is studied in particular. The shaft is modeled with typical beam finite elements. The dynamic behaviors of the fluid supports are considered as nonlinear. The dynamic behavior is analyzed using an unsteady time integration procedure. The paper shows the coupling between the axial dynamic behavior and the bending vibratio
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Zhao, Guowei, and Zhigang Wu. "Effects of steady-state axial deformation on bending frequency of rotating cantilever beam." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 24 (2016): 4521–27. http://dx.doi.org/10.1177/0954406216669534.

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A coupling dynamic model of a rotating cantilever beam is established by considering the effect of steady-state axial deformation on transverse bending deformation. The present method uses fully nonlinear Green strain–displacement relationship to derive the coupling terms in the equations of motion. The steady-state axial deformation is derived by analysing the equation of axial motion. An expression of the rotational speed limit is also obtained. The numerical results indicate that the steady-state axial deformation has a considerable effect on the transverse bending frequencies. A comparison
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Guo, Xiangyu, Zhe Xu, Qipeng Cai, and Changjian Chen. "Longitudinal Nonlinear Equivalent Continuous Model for Shield Tunnel under Coupling of Longitudinal Axial Force and Bending Moment." Applied Sciences 14, no. 14 (2024): 6261. http://dx.doi.org/10.3390/app14146261.

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The longitudinal equivalent continuous model generally only studies the stiffness of shield tunnels under longitudinal bending moments, considering it a constant. However, in actual engineering, shield tunnels are exposed to complex environments where seismic events, uneven settlement, etc., may cause simultaneous axial forces and bending moments between segmental rings, necessitating consideration of the longitudinal stiffness of shield tunnels under coupled axial force and bending moment effects. Therefore, based on the influence of different axial forces and bending moments on the separatio
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MacArthur, Sandra L., Matthew D. Johnson, and Daniel D. Lewis. "Biomechanical Comparison of Two Conical Coupling Plate Constructs for Cat Tibial Fracture Stabilization." Veterinary and Comparative Orthopaedics and Traumatology 33, no. 04 (2020): 252–57. http://dx.doi.org/10.1055/s-0040-1708497.

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Abstract Objective This study aimed to compare the biomechanical characteristics of two conical coupling plate (CCP) constructs in an ex vivo feline tibial fracture gap model. Study Design Paired tibiae harvested from eight recently euthanatized cats were alternately assigned to one of two stabilization groups. One tibia was stabilized with a standard, 6-hole, 2.5-mm CCP and the contralateral tibia was stabilized with a 6-hole, 2.5-mm prototype CCP (pCCP). Non-destructive cyclic four-point craniocaudal bending, mediolateral bending and axial compression testing were performed, and stiffness wa
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Chen, Wen Yuan. "Analysis of Dynamic Characteristics of Pile-Soil Coupling Effect in Consideration of Large Span Cable-Stayed Bridge." Applied Mechanics and Materials 501-504 (January 2014): 1270–73. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.1270.

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Using the viscouselastic artificial boundary, three conditions of long-span cable-stayed bridge are analyzed,such as pile cap consolidation, pile - structure and pile soil structure interaction. Natural frequency of bridge of pile - soil - structure coupling becomes small and cycle becomes long. The pile bottom reaction force decreased obviously, at the same time, the axial force , bending moment, axial force of cable, tower of axial force and bending moment is also reduced significantly. Cable-stayed bridge is a special flexible structure, so, static internal force calculation in the tower bo
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Cui, Zhiming, Zihe Liang, and Jaehyung Ju. "A non-centrosymmetric square lattice with an axial–bending coupling." Materials & Design 216 (April 2022): 110532. http://dx.doi.org/10.1016/j.matdes.2022.110532.

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Lei, Dun Cai, and Jin Yuan Tang. "The Design Method of V-Tooth Coupling." Advanced Materials Research 871 (December 2013): 347–51. http://dx.doi.org/10.4028/www.scientific.net/amr.871.347.

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A lecture on the method to compute the the stress of V-tooth coupling under the actual operating conditions. the finite element analysis model of V-tooth coupling under the preload, axial load and torsion was established by used of the software ABAQUS,and the distribution of the bending stress at the root was obtained. The analytical method to compute the bending stress of V-tooth disk is deduced based on the basic principle of material mechanics, and the relative error within 10% compared with the results of finite element analysis.The paper work provide the reference for the precision design
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Senouci, M., D. FitzPatrick, J. F. Quinlan, H. Mullett, L. Coffey, and D. McCormack. "Quantification of the coupled motion that occurs with axial rotation and lateral bending of the head-neck complex: An experimental examination." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 221, no. 8 (2007): 913–19. http://dx.doi.org/10.1243/09544119jeim265.

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The vertebrae of the cervical spine exhibit out-of-plane or coupled motion during axial rotation and lateral bending. Quantifying the range of motion (ROM) of this occurrence can aid the understanding of cervical spine injury mechanisms and disorders, as well as the development of new treatment methods. Previous studies have formulated ratios to describe coupled motion obtained from in-vitro examinations. The aim of the present study was to use in-vivo test data to develop mathematical relationships to quantify the coupled motion that occurs with axial rotation and lateral bending of the head-
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Wang, Fan, and Xing Wang. "Tangent Stiffness Matrix of Single-Layer Reticulated Shell’s Members with Rigid Ends." Advanced Materials Research 479-481 (February 2012): 1997–2000. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.1997.

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In the paper, the axial stiffness and bending stiffness of single-layer reticulated shell’s joint are considering together, non-linear beam-column element with rigid springs and rigid ends is taken as the analysis model of members of single-layer reticulated shell, a tangent stiffness matrix of members of single-layer reticulated shell considering joint’s stiffness is derived on the basis of the beam-column theory. In this matrix, not only coupling effects of bending in two axes but also joint’s stiffness and joint’s size are considered, not only the effect of axial force on bending but also t
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Dissertations / Theses on the topic "Axial-bending coupling"

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Koutoati, Kouami. "Modélisation numérique du comportement statique et vibratoire des poutres sandwich viscoélastiques à gradient de propriétés." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0290.

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On propose par le biais de cette thèse un outil numérique pour l’étude statique et dynamique des structures viscoélastiques constituées de matériaux à gradient de propriétés (FGM) pour le contrôle des vibrations par amortissement passif. L’objectif est de mettre à la disposition des ingénieurs un code générique basé sur l’approche élément fini pour des calculs de dimensionnements sur des poutres sandwich FGM à âme viscoélastique destinées aux applications exigeant la légèreté et une bonne résistance thermique et mécanique comme le domaine de l’aérospatial, de l’automobile et du nucléaire. Pour
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Book chapters on the topic "Axial-bending coupling"

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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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Cole A.A., Burwell R.G., and Webb J.K. "Lateral Flexion Induced Axial Rotation in Adolescent Idiopathic Scoliosis (AIS)." In Studies in Health Technology and Informatics. IOS Press, 1997. https://doi.org/10.3233/978-1-60750-881-6-93.

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The aim of this study is to examine the coupling of lateral flexion and axial rotation in adolescent idiopathic scoliosis (AIS). Seventy six patients with AIS each had left and right supine lateral bending films before surgery. The vertebral rotation (Perdriolle) was measured from T5 to L4 on each radiograph. The change in rotation was calculated for each vertebra from left to right lateral bending = ‘lateral flexion induced rotational change (LFIRC)’
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Conference papers on the topic "Axial-bending coupling"

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Sinotte, Tyler, Daniel Schuster, and Therese-Ann Vermillion. "Whirl Testing of a Full-Scale Rotor with Flap-Bending/Twist Composite Coupled Blades." In Vertical Flight Society 81st Annual Forum and Technology Display. The Vertical Flight Society, 2025. https://doi.org/10.4050/f-0081-2025-193.

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Whirl testing of a full-scale rotor with positive flap-bending/twist composite coupled blades was performed to evaluate the dynamic and performance effects of the coupling. A positive flap-bending/twist coupling, in which a flap up deformation induces a nose down elastic twist, was introduced in the blades through tailoring of the laminate layups; the magnitude of the coupling was maximized through an optimization of the layup, with the intent of maximizing the potential impact of the coupling for correlation purposes. An uncoupled version of the blade using the same geometry and materials was
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Walton, James F., C. P. Roger Ku, and Jorgen W. Lund. "An Experimental Investigation of the Dynamic Characteristics of an Axial Spline Coupling in High-Speed Rotating Machinery." In ASME 1993 Design Technical Conferences. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/detc1993-0201.

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Abstract This paper presents the results of the second part of an investigation of the dynamic characteristics of an axial spline coupling in high-speed rotating machinery. In the experimental method described herein, the bending moments and angular deflections transmitted across the axial spline coupling were measured while the nonrotating shaft was excited by an external shaker. The effects of external force and frequency on the angular stiffness and damping coefficients were investigated. The angular stiffness and damping coefficients were used to perform a linear steady-state rotordynamics
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Khulief, Y. A., S. Bashmal, and F. A. Al-Sulaiman. "Coupled Torsional Vibrations in Drilling Systems." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80489.

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The contact between the drilling bit and formation is known to excite severe torsional and axial vibrations in the drillstring. A dynamic model of the drillstring including both drillpipe and drillcollars is formulated. The equation of motion of the rotating drillstring is derived using Lagrangean approach together with the finite element method. The model accounts for the gyroscopic effect, the torsional/bending inertia coupling, the axial/bending geometric nonlinear coupling, and the stiffening effect due to the gravitational force field. Reduced order modal form of the dynamic equations is
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Ghoneim, H., and D. J. Lawrie. "Dynamic Analysis of a Hyperbolic Composite Coupling." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-79558.

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A novel hyperbolic composite coupling is proposed. In addition to enjoying the advantages of composite materials, the proposed coupling can be readily integrated with composite drive shaft into a single unit. A mathematical model of the coupling is developed based on the Timoshenko beam theory using the energy approach and the extended Lagrange’s equations. The corresponding discrete equation of vibration is obtained using the finite element method and solved for the natural frequencies using MATLAB. The dynamic characteristics of the coupling (Axial, torsional and bending natural frequencies)
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Ku, C. P. Roger, James F. Walton, and Jorgen W. Lund. "A Theoretical Approach to Determine Angular Stiffness and Damping Coefficients of an Axial Spline Coupling in High-Speed Rotating Machinery." In ASME 1993 Design Technical Conferences. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/detc1993-0199.

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Abstract This paper provided the first opportunity to quantify the angular stiffness and equivalent viscous damping coefficients of an axial spline coupling used in high-speed turbomachinery. A unique test methodology and data reduction procedures were developed. The bending moments and angular deflections transmitted across an axial spline coupling were measured while a non-rotating shaft was excited by an external shaker. A rotordynamics computer program was used to simulate the test conditions and to correlate the angular stiffness and damping coefficients. In addition, sensitivity analyses
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Gopalakrishnan, Shibu, and Gopinath Dhandapani. "Single Layered Cable Under Constrained Bending: Development of New Mathematical Model and Validation." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-67854.

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This paper concerns the response of a single-layered strand cable of helical wires with wires-to-core contact under free and constant curvature constrained bending. The stranded cable under static-loading conditions experiences any combination of tension, torsion and bending. A linear finite element model for helical wire strand cable for both bending cases was developed and their bending response for various load steps was analyzed. The responses thus observed were compared with the theoretical prediction reported by the present authors in the literature. The present authors have developed a
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Garci´a-Vallejo, Daniel, Hiroyuki Sugiyama, and Ahmed A. Shabana. "Finite Element Analysis of the Geometric Stiffening Effect Using the Absolute Nodal Coordinate Formulation." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84061.

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In this paper, the limitations of the linear elasticity finite element solutions in describing the coupling between the extensional and bending displacements are discussed. The fact that incorrect unstable solutions are obtained for models with more than one finite element using the linear elasticity theory motivates the analytical study of the rotating beam presented in this paper. It is shown, as documented in the literature, that the instability of the incorrect solution is directly related to the singularity of the stiffness matrix, and such an instability occurs when the angular velocity
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Singh, Manander, and Suhail Ahmad. "Local Stress Analysis of Composite Production Riser Under Random Sea." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-23983.

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The advantage of composite riser is more pronounced due to its light weight and reduced axial tension and bending moment. Its characteristics provide more flexibility in the design of riser system such as stress joint, tensioner or even the platform hull. The composite riser under study consists of alternative hoop and axial layers. There is a marginal coupling between these two orientations hence, the riser is spatially orthotropic. The pressure capabilities of riser are governed by the performance of hoop layers under combined fluctuating axial tension and bending moment. The internal steel
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Margasahayam, R. N., and H. S. Faust. "Composite Drive Shaft Coupling for Future Rotorcraft: A 3D Finite-Element Analysis." In ASME 1988 Design Technology Conferences. American Society of Mechanical Engineers, 1988. http://dx.doi.org/10.1115/detc1988-0044.

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Abstract A finite-element stress analysis of a one-piece, integrated, all-composite shaft and coupling is presented. In addition to a brief discussion of design-driving parameters, some limitations of the analytical techniques used for design development are described. The 3D finite-element method (FEM) was then used to evaluate critical stresses and strains experienced by the shaft coupling. A comparison of the results from the finite-element analysis and those from static bending, axial, and torsional tests conducted on these prototype shafts yielded excellent correlation. Some important con
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Qu, Xiaoqi, Yougang Tang, Zhen Gao, Yan Li, and Liqin Liu. "An Analytical Model of Floating Offshore Wind Turbine Blades Considering Bending-Torsion Coupling Effect." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78571.

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In this paper, an analytical model is proposed to describe the nonlinear vibration of blades on floating offshore wind turbine (FOWT). The bending-torsion coupling equations are derived based on Hamilton’s principle. Comparing with the classical Newtonian method, this approach is more mathematically rigorous and systematic. The flapwise and edgewise deformation, the torsion as well as axial extension of the blades are all included in the model. A set of partial differential equations governing the coupled nonlinear vibration is established, and the results are compared with the multi-body mode
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