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Journal articles on the topic 'Axial-bending coupling'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

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1

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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2

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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3

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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4

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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5

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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6

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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7

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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8

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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9

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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10

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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11

Huang, Jianyou, Chia-Ou Chang, and Chien-Cheng Chang. "Analysis of Structural Vibrations of Vertical Axis Wind Turbine Blades via Hamilton’s Principle — Part 1: General Formulation." International Journal of Structural Stability and Dynamics 20, no. 09 (2020): 2050098. http://dx.doi.org/10.1142/s0219455420500984.

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Energy harvesting by wind turbines is of great concern in many countries/areas, yet its safety is inevitably related to the structural vibration of the turbine system. In this study, we present a complete linear analysis of structural vibrations for vertical axis wind turbines (VAWTs) based on Euler’s beam theory by Lagrangian mechanics. The un-deformed blade is assumed to be vertically straight. There are several findings from solving the resultant equations which represent four dimensions of deformation, involving motion: lateral bending-chordwise bending-axial torsion-axial extension (BBTE)

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12

Kam, Wern, Yong Sheng Ong, Sinead O’Keeffe, Waleed S. Mohammed, and Elfed Lewis. "An Analytical Model for Describing the Power Coupling Ratio between Multimode Fibers with Transverse Displacement and Angular Misalignment in an Optical Fiber Bend Sensor." Sensors 19, no. 22 (2019): 4968. http://dx.doi.org/10.3390/s19224968.

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The power coupling ratio between step-index multimode fibers caused by combined transversal and angular misalignment is calculated. A theoretical description of the coupling efficiency between two optical fibers based on geometrical optics is provided. The theoretical calculations are collaborated by experiments, determining the power coupling ratio between three output fibers with an axial offset and angular misalignment with a single input fiber. The calculation results are in good agreement with experimental results obtained using a previously fabricated optical fiber sensor for monitoring

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13

Baisden, Jamie L., Brian D. Stemper, David Barnes, Narayan Yognandan, and Frank A. Pintar. "Normative Lumbar Spine Coupling Relationships between Axial Rotation and Lateral Bending." Spine Journal 10, no. 9 (2010): S124. http://dx.doi.org/10.1016/j.spinee.2010.07.324.

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14

Wang, Chen, Hamed Haddad Khodaparast, Michael Ian Friswell, and Alexander David Shaw. "An equivalent model of corrugated panels with axial and bending coupling." Computers & Structures 183 (April 2017): 61–72. http://dx.doi.org/10.1016/j.compstruc.2017.01.008.

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15

Wang, Xing. "Elememt Stiffness Matrix of Members of Reticulated Shell with End Springs." Applied Mechanics and Materials 94-96 (September 2011): 289–92. http://dx.doi.org/10.4028/www.scientific.net/amm.94-96.289.

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In this paper, a tangent stiffness matrix of members with end springs of reticulated shell is derived on the basis of Timoshenko’s beam-column theory. In this matrix, joint’s axial stiffness and bending stiffness are considering together, non-linear beam-column element with end springs and rigid ends is taken as the analysis model of members of reticulated shell. 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 the effect of axial force on torsion are considered. H

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16

Hottmann, Natasha M., Matthew D. Johnson, Scott A. Banks, David Tuyn, and Daniel D. Lewis. "Biomechanical Comparison of Two Locking Plate Constructs for the Stabilization of Feline Tibial Fractures." Veterinary and Comparative Orthopaedics and Traumatology 33, no. 02 (2019): 089–95. http://dx.doi.org/10.1055/s-0039-3399572.

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Abstract Objectives The aim of this study was to compare the biomechanical characteristics of locking compression plate (LCP) and conical coupling plate (CCP) constructs for the stabilization of experimentally induced gap fractures in cat tibiae. Materials and Methods Pelvic limbs were harvested from eight cat cadavers. Paired tibiae were stripped of all soft tissues, and randomly assigned to the LCP or CCP stabilization group. An eight-hole 2.7 mm LCP or a six-hole 2.5 mm CCP was applied to the medial surface of each tibia. A 1-cm segment of the tibia was excised centrally beneath the plate.

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17

Ku, C. P. Roger, J. F. Walton, and J. W. Lund. "Dynamic Coefficients of Axial Spline Couplings in High-Speed Rotating Machinery." Journal of Vibration and Acoustics 116, no. 3 (1994): 250–56. http://dx.doi.org/10.1115/1.2930421.

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This paper provided the first opportunity to quantify the angular stiffness and equivalent viscous damping coefficients of an axial spline coupling used in highspeed turbomachinery. The bending moments and angular deflections transmitted across an axial spline coupling were measured while a nonrotating 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. The effects of external force and frequency were also investigated. The angular stiffness and damping coefficients w

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18

Gupta, Prakhar, and Ajeet Kumar. "Phonons in chiral nanorods and nanotubes: A Cosserat-rod-based continuum approach." Mathematics and Mechanics of Solids 24, no. 12 (2019): 3897–919. http://dx.doi.org/10.1177/1081286519856407.

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A Cosserat-rod-based continuum approach is presented to obtain phonon dispersion curves of flexural, torsional, longitudinal, shearing, and radial breathing modes in chiral nanorods and nanotubes. Upon substituting the continuum wave form in the linearized dynamic equations of stretched and twisted Cosserat rods, we obtain an analytical expression of a coefficient matrix (in terms of the rod’s stiffnesses, induced axial force, and twisting moment) whose eigenvalues and eigenvectors give us frequencies and mode shapes, respectively, for each of the above phonon modes. We show that, unlike the c

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19

Wu, Zhi-Yuan, Han Yan, Lin-Chuan Zhao, et al. "Axial-bending coupling vibration characteristics of a rotating blade with breathing crack." Mechanical Systems and Signal Processing 182 (January 2023): 109547. http://dx.doi.org/10.1016/j.ymssp.2022.109547.

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20

Kang, Ji, Tae-Jeong Lim, and Hyun-Woo Park. "Predicting the Modal Frequencies of a Cracked Beam Considering Axial-bending Coupling." Transactions of the Korean Society for Noise and Vibration Engineering 29, no. 2 (2019): 270–72. http://dx.doi.org/10.5050/ksnve.2019.29.2.270.

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21

Wang, Guoxu, Yapeng Li, and Yegao Qu. "Effects of internal resonance on the nonlinear acoustic radiation induced by axial and bending vibration of hyperelastic cantilever beams." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 268, no. 7 (2023): 1143–49. http://dx.doi.org/10.3397/in_2023_0173.

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This paper provides a numerical nonlinear vibro-acoustic study of a slender hyperelastic cantilever beam with 2:1 internal resonance condition. The model of beam includes geometric and material nonlinearities, while the model of acoustics includes the Arbitrary Lagrangian-Eulerian frame and the perfectly matched layers. The finite element method and the time integration method are used to discretize the structure and acoustic field. A loosely coupled serially staggered procedure is used to compute the variable values of structure and acoustic field. The results show that the transition from th

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22

Lei, Zhiyang, Jinpeng Su, and Hongxing Hua. "Longitudinal and Transverse Coupling Dynamic Properties of a Timoshenko Beam with Mass Eccentricity." International Journal of Structural Stability and Dynamics 17, no. 07 (2017): 1750077. http://dx.doi.org/10.1142/s0219455417500778.

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Non-uniform mass distribution on a beam will lead to the coupling between lateral and axial vibrations of the beam. To simulate the mass eccentricity, a double-layered Timoshenko beam model is developed. Based on Hamilton’s principle, the coupled governing equations are derived and mass and stiffness coupling coefficients are also derived. Moreover, the spectral element method (SEM), with high frequency accuracy by employing the dynamic shape functions, is utilized to study the dynamic properties of the beam. In addition, a corresponding finite element model is established to verify the SEM mo

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23

Sorokivskyi, Oleh. "LOADING OF THE MAIN ELEMENTS OF THE FREE WHELL BALL COUPLING." Ukrainian Journal of Mechanical Engineering and Materials Science 10, no. 2 (2024): 57–65. https://doi.org/10.23939/ujmems2024.02.057.

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The article examines the design features and the principle of its operation of the overrunning ball clutch. A methodology for calculating transverse forces, bending moments and axial deformations of the main elements of the overrunning ball clutch is proposed. The given materials allow designers to rationally choose the materials for manufacturing and the main geometric parameters of the given overrunning ball clutch

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24

Dong, Shi Min, Wan Sheng Zhang, Guo Hong Chai, Ming Ming Xing, and Hong Zhang. "Simulating Research on Rod String’s Gyro Effect Caused by Eccentric Rotation in Circular Tube." Applied Mechanics and Materials 130-134 (October 2011): 2294–300. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.2294.

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Based on the influences of eccentrical rotating inertial centrifugal force and axial force on the rod string’s lateral bending deformation, the finite beam element model of rod string’s bending deformation is established. The constraint to rod string’s bending deflection exerted by inwall of circular tube and the distinction of the constraint to rod string’s deflection because of the different gaps between rod string to circular tube and coupling to circular tube are both taken into account. Meanwhile, removable spring elements with two directions are adopted, by which the non-linear contact p

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25

Lee, Jung Woo. "Free Vibration Analysis of Three Layered Beams with a Soft-Core Using the Transfer Matrix Method." Applied Sciences 13, no. 1 (2022): 411. http://dx.doi.org/10.3390/app13010411.

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In this study, the free vibration characteristics of symmetric three-layered beams with a soft core, whereby the mass of the core could be ignored, were investigated. The coupling effect of the axial and bending displacements owing to the presence of the soft core was considered. Classical beam theory was employed for analyzing the top and bottom layers, and only the shear deformation was applied for the core layer. The frequency determinant was deduced using the transfer matrix method. The efficacy of the method was demonstrated through a comparison with the natural frequencies obtained in pr

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26

Su, Jinpeng, Zhiyang Lei, and Hongxing Hua. "Axial–bending coupling vibration of mass eccentric double-beam system with discrete elastic connections." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 231, no. 2 (2016): 555–68. http://dx.doi.org/10.1177/1475090216669890.

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The existence of mass eccentricity will lead to the energy transfer between axial and flexural vibrations of a beam. To study the coupling properties of a double-Timoshenko beam system, a non-uniform coupled double-beam system is modeled in which the upper beam is typical and the lower beam is mass eccentric simulated by a non-uniform two-layer Timoshenko beam. By incorporating Hamilton’s principle and spectral element method, the axial–bending coupled governing equations of the system are derived and the approach can also be easily used to analyze the influences of the parameters and other co

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27

Tadeo, A. T., K. L. Cavalca, and M. J. Brennan. "Dynamic characterization of a mechanical coupling for a rotating shaft." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 225, no. 3 (2010): 604–16. http://dx.doi.org/10.1243/09544062jmes2214.

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This article concerns the dynamic characterization of a flexible coupling that connects two co-axial shafts. Four different lumped parameter coupling models from the literature are investigated to see which model could best predict the dynamic behaviour of the coupling. The finite-element method was used to model the rotor dynamic system incorporating the coupling. Frequency response functions from this model were compared with measured frequency response functions from the rotor test rig with the shaft and coupling rotating at a specific speed. Parameters from the model were adjusted to minim

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28

Li, Zhen, Bin Yin, Jiashun Feng, and Rui Zhang. "Transverse-longitudinal Coupling Effect in the Free Vibration of Eccentrically Supported Functionally Graded Beams." Journal of Physics: Conference Series 3004, no. 1 (2025): 012061. https://doi.org/10.1088/1742-6596/3004/1/012061.

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Abstract This paper takes the functionally graded beam as the research object and explores the coupling between transverse and longitudinal vibrations in functionally graded beams with eccentric support boundary conditions. Considering the case where the boundary simply supported at the beam ends is not aligned with the neutral plane, the displacement of the supporting section due to the constraint causes a change in the beam’s neutral plane length during longitudinal bending. That is, during dynamic vibration, the bending mode and the axial mode couple with each other. The functionally graded

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29

Scaccabarozzi, Diego, and Bortolino Saggin. "Measurement of Stress Waves Propagation in Percussive Drilling." Sensors 21, no. 11 (2021): 3677. http://dx.doi.org/10.3390/s21113677.

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This work describes the results of a test campaign aimed to measure the propagation of longitudinal, torsional, and flexural stress waves on a drill bit during percussive rock drilling. Although the stress wave propagation during percussive drilling has been extensively modeled and studied in the literature, its experimental characterization is poorly documented and generally limited to the detection of the longitudinal stress waves. The activity was performed under continuous drilling while varying three parameters, the type of concrete, the operator feeding force, and the drilling hammer rot

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30

Jing, Zhao, Qin Sun, Ke Liang, and Jianqiao Chen. "Closed-Form Critical Buckling Load of Simply Supported Orthotropic Plates and Verification." International Journal of Structural Stability and Dynamics 19, no. 12 (2019): 1950157. http://dx.doi.org/10.1142/s0219455419501578.

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The buckling mode is important to determine the critical load of specially orthotropic rectangular plates under axial compression with simply supported boundary. However, in classical laminated plate theory (CLPT), the critical buckling mode can only be obtained by iterative or numerical methods. This paper derives the critical buckling mode mathematically and presents the critical buckling load in closed form. By taking advantage of the derived closed-form solution, it is convenient to investigate the effects of aspect ratio, load ratio, and fiber orientation on the buckling load, and the par

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31

Nagiar, Hassan M., and Mohammed Ali Hjaji. "Analytical Formulations for Coupled Axial-Bending-Shear-Torsion Vibrations of Asymmetric Laminated Timoshenko Beams." International Science and Technology Journal 35, no. 1 (2024): 1–22. http://dx.doi.org/10.62341/hmmh3011.

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This paper presents the exact closed-form solutions for the vibration analysis of extension-bending-shear-torsion coupled responses in asymmetric laminated Timoshenko beams. The study derives four governing differential equations and corresponding boundary conditions using Hamilton’s variational principle. The formulation, based on first-order shear deformation theory (FSDT), accounts for rotary inertia, Poisson’s ratio, and extensional-flexural-torsional-shear coupling effects arising from material anisotropy. The exact solutions are obtained for various harmonic bending and twisting excitati

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32

Fall, Massamba, Zhengguo Gao, and Becaye Cissokho Ndiaye. "Driven Pile Effects on Nearby Cylindrical and Semi-Tapered Pile in Sandy Clay." Applied Sciences 11, no. 7 (2021): 2919. http://dx.doi.org/10.3390/app11072919.

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A pile foundation is commonly adopted for transferring superstructure loads into the ground in weaker soil. They diminish the settlement of the infrastructure and augment the soil-bearing capacity. This paper emphases the pile-driving effect on an existing adjacent cylindrical and semi-tapered pile. Driving a three-dimensional pile into the ground is fruitfully accomplished by combining the arbitrary Lagrangian–Eulerian (ALE) adaptive mesh and element deletion methods without adopting any assumptions that would simplify the simulation. Axial forces, bending moment, and lateral displacement wer

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Zhu, Q. A., Y. B. Park, S. G. Sjovold, et al. "Can extra-articular strains be used to measure facet contact forces in the lumbar spine? An in-vitro biomechanical study." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 222, no. 2 (2008): 171–84. http://dx.doi.org/10.1243/09544119jeim290.

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Experimental measurement of the load-bearing patterns of the facet joints in the lumbar spine remains a challenge, thereby limiting the assessment of facet joint function under various surgical conditions and the validation of computational models. The extra-articular strain (EAS) technique, a non-invasive measurement of the contact load, has been used for unilateral facet joints but does not incorporate strain coupling, i.e. ipsilateral EASs due to forces on the contralateral facet joint. The objectives of the present study were to establish a bilateral model for facet contact force measureme

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34

Xi, Jing Jing, Qing Ning Li, and Tian Li Wang. "Calculation of State Transfer of Curved Bridge." Advanced Materials Research 243-249 (May 2011): 1701–6. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.1701.

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The field transfer matrixs and the point transfer matrixs can be established by the transfer matrix method, which can solve the internal forces and deformations problems of each cross-section, based on the solutions of deflection differential equation of the curved bridge. The bending-torsional coupling, horizontal bending and axial deformations should be considered into the structural analysis of the curved bridge, under the influence of curvature. To establish the general transfer equation requires the field transfer matrixs and the point transfer matrixs of the curved bridge in horizontal a

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35

Towliat Kashani, M. Tahmaseb, Supun Jayasinghe, and Seyed M. Hashemi. "On the Flexural-Torsional Vibration and Stability of Beams Subjected to Axial Load and End Moment." Shock and Vibration 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/153532.

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The free vibration of beams, subjected to a constant axial load and end moment and various boundary conditions, is examined. Based on the Euler-Bernoulli bending and St. Venant torsion beam theories, the differential equations governing coupled flexural-torsional vibrations and stability of a uniform, slender, isotropic, homogeneous, and linearly elastic beam, undergoing linear harmonic vibration, are first reviewed. The existing formulations are then briefly discussed and a conventional finite element method (FEM) is developed. Exploiting the MATLAB-based code, the resulting linear Eigenvalue

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36

Sapountzakis, Evaggelos, and Evaggelos Kampitsis. "Nonlinear Analysis of Shear Deformable Beam-Columns Partially Supported on Tensionless Winkler Foundation." International Journal οf Engineering, Science And Technology 2, no. 4 (2010): 31–53.

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In this paper, a boundary element method is developed for the nonlinear analysis of shear deformable beam-columns of arbitrary doubly symmetric simply or multiply connected constant cross section, partially supported on tensionless Winkler foundation, undergoing moderate large deflections under general boundary conditions. The beam-column is subjected to the combined action of arbitrarily distributed or concentrated transverse loading and bending moments in both directions as well as to axial loading. To account for shear deformations, the concept of shear deformation coefficients is used. Fiv

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Sapountzakis, Evaggelos, and Andreas Kampitsis. "Nonlinear Analysis of Shear Deformable Beam-Columns Partially Supported on Tensionless Three-Parameter Foundation." Archive of Applied Mechanics 81, no. 12 (2011): 1833–51. https://doi.org/10.1007/s00419-011-0521-4.

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In this paper, a boundary element method is developed for the nonlinear analysis of shear deformable beam-columns of arbitrary doubly symmetric simply or multiply connected constant cross section, partially supported on tensionless three parameter foundation, undergoing moderate large deflections under general boundary conditions. The beam-column is subjected to the combined action of arbitrarily distributed or concentrated transverse loading and bending moments in both directions as well as to axial loading. To account for shear deformations, the concept of shear deformation coefficients is u

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Le, Yun, Jiancheng Fang, and Jinji Sun. "An integrated passive magnetic damping system for high-speed compressor with flexible rotor." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 229, no. 6 (2014): 1150–61. http://dx.doi.org/10.1177/0954406214542038.

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To provide a more reliable rotor damping system for high-speed compressor with flexible rotor, a passive magnetic damping integrated with an active axial bearing (PMDAB) system is proposed. The PMDAB system can provide active force in axial direction and also can provide damping force without control system in radial direction. To enhance the damping ability of the system, an analytical model is set up especially for the high-speed vibration rotor, and the relation between resistance of radial coils and the provided damping force is discussed for the first time. The coupling characteristic bet

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O’Brien, P. J., J. F. McNamara, and F. P. E. Dunne. "Three-Dimensional Nonlinear Motions of Risers and Offshore Loading Towers." Journal of Offshore Mechanics and Arctic Engineering 110, no. 3 (1988): 232–37. http://dx.doi.org/10.1115/1.3257056.

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A method is developed for the three-dimensional nonlinear motions of marine risers, pipelines and offshore loading towers. The technique is based on the finite element method and the separation of the rigid body motions and deformations of elements under conditions of finite rotations. The position of the riser is defined by a set of co-rotational axes and the evaluation of the finite rotations of this convected system is detailed. The method includes all nonlinear effects including geometry changes, bending-axial and bending-torsional coupling and follower forces and pressures. The computatio

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Scholten, P. J. M., and A. G. Veldhuizen. "The Influence of Spine Geometry on the Coupling between Lateral Bending and Axial Rotation." Engineering in Medicine 14, no. 4 (1985): 167–71. http://dx.doi.org/10.1243/emed_jour_1985_014_041_02.

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Ranzo, Giulio, Marco Petrangeli, and Paolo Emilio Pinto. "Vertical oscillations due to axial-bending coupling during seismic response of RC bridge piers." Earthquake Engineering & Structural Dynamics 28, no. 12 (1999): 1685–704. http://dx.doi.org/10.1002/(sici)1096-9845(199912)28:12<1685::aid-eqe890>3.0.co;2-7.

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Liu, Heng, Jie Hong, and Dayi Zhang. "Bending and vibration of a discontinuous beam with a curvic coupling under different axial forces." Frontiers of Mechanical Engineering 15, no. 3 (2020): 417–29. http://dx.doi.org/10.1007/s11465-019-0584-4.

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Abstract The transverse stiffness and vibration characteristics of discontinuous beams can significantly differ from those of continuous beams given that an abrupt change in stiffness may occur at the interface of the former. In this study, the equations for the deflection curve and vibration frequencies of a simply supported discontinuous beam under axial loads are derived analytically on the basis of boundary, continuity, and deformation compatibility conditions by using equivalent spring models. The equation for the deflection curve is solved using undetermined coefficient methods. The norm

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Li, Changchang, Zhengzhong Wang, and Quanhong Liu. "Numerical Simulation of Mudstone Shield Tunnel Excavation with ABAQUS Seepage–Stress Coupling: A Case Study." Sustainability 15, no. 1 (2022): 667. http://dx.doi.org/10.3390/su15010667.

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To explore the influence of shield construction on the stress of tunnels surrounding rock and linings in deep, high groundwater and low-permeability soft rock strata, a 3D coupled hydro-mechanical model of a low permeability mudstone tunnel was established with ABAQUS, based on the effective stress principle and the Mohr–Coulomb elastoplastic constitutive model, taking the Bailuyuan Tunnel of the Hanjiang to Weihe River Valley Water Diversion Project Phase II in China as an example. The tunnel shield construction was simulated, and the spatial-temporal variation in the pore water pressure and

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Šalinić, Slaviša, Marko Todorović, and Aleksandar Obradović. "An analytical approach for free vibration analysis of Euler-Bernoulli stepped beams with axial-bending coupling effect." Engineering Today 1, no. 4 (2022): 7–17. http://dx.doi.org/10.5937/engtoday2204007s.

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Free vibration of eccentrically stepped beams with one step change in cross-section is considered. It is assumed that the longitudinal symmetry axes of the beam segments are translationally shifted along the vertical direction with respect to each other. The effect of that arrangement of the segments on the coupling of axial and bending vibrations of the stepped beam is analyzed. The beam segments are modeled in the frame of the Euler-Bernoulli theory of elastic beams. Two numerical examples are presented.

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Seys, Jonas, Koenraad Roeygens, Jeroen Van Wittenberghe, Timothy Galle, Patrick De Baets, and Wim De Waele. "Failure behaviour of preloaded API line pipe threaded connections." International Journal Sustainable Construction & Design 2, no. 3 (2011): 407–15. http://dx.doi.org/10.21825/scad.v2i3.20539.

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This paper reports on numerical and experimental work concerning the fatigue behaviour andsealing capacity of threaded pipe connections (1” API Line Pipe). Numerical simulations are performedusing Abaqus®in combination with ThreadGen©. The fatigue life of a thick-walled standard coupling isdetermined using a four-point bending test. The corresponding S-N curve is compared to results of previouswork on thin-walled specimens. It can be concluded that the standard thick-walled connection has a higherfatigue life than thin-walled ones. In future work, the prediction of fatigue life using establish

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Hu, F. L., and A. G. Ulsoy. "Dynamic Modeling of Constrained Flexible Robot Arms for Controller Design." Journal of Dynamic Systems, Measurement, and Control 116, no. 1 (1994): 56–65. http://dx.doi.org/10.1115/1.2900681.

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The modeling for controller design of a constrained rigid-flexible robot arm is considered. The mathematical model is obtained as a set of nonlinear hybrid ordinary-partial differential equations and an algebraic constraint equation. Galerkin’s method is employed to discretize the partial differential equations. Because of the constrained environment of the robot arm, the choice of approximating functions in the spatial discretization is crucial for obtaining accurate simulation results from a low order model. Several candidate approximating functions are evaluated through convergence and accu

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Zhang, Xuping, James K. Mills, and William L. Cleghorn. "Investigation of axial forces on dynamic properties of a flexible 3-PRR planar parallel manipulator moving with high speed." Robotica 28, no. 4 (2009): 607–19. http://dx.doi.org/10.1017/s0263574709990282.

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SUMMARYThe effect of axial forces on the dynamic properties is formulated and investigated for a 3-PRR planar parallel manipulator with three flexible intermediate links. A dynamic model of the manipulator system is developed based on the assumed mode method with the consideration of the effect of longitudinal forces on lateral stiffness is included. The flexible intermediate links are modeled as Euler–Bernoulli beams with pinned-pinned boundary conditions, which are verified by experimental modal tests. Natural frequencies of bending vibration of the intermediate links are derived as the func

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Ren, Fei, Da Tong Qin, and Xiao Ling Wu. "Research on the Dynamics of the Double Helical Gear Transmission." Applied Mechanics and Materials 456 (October 2013): 256–59. http://dx.doi.org/10.4028/www.scientific.net/amm.456.256.

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Against the transmission characteristics of the double helical gear pair, considering the time-varying mesh stiffness, the bearing radial and axial stiffness, the tensile and compressive stiffness of the transmission shaft, the bending stiffness of that, error excitations, and corresponding dampings, a double helical gear pair bending-torsion-axis coupling dynamic model was established by using the lumped parameter method based on the gear meshing theory and Lagrange equations. Based on the model, the dynamic response of double helical gear pair was solved, and taking the right side of helical

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Leen, S. B., T. H. Hyde, C. H. H. Ratsimba, E. J. Williams, and I. R. McColl. "An investigation of the fatigue and fretting performance of a representative aero-engine spline coupling." Journal of Strain Analysis for Engineering Design 37, no. 6 (2002): 565–83. http://dx.doi.org/10.1243/030932402320950161.

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The fatigue behaviour of a representative high-performance aero-engine spline coupling is investigated under test conditions designed to simulate in-service conditions. The test load cycles consist of major cycle torque and axial load, simulating maximum thrust, combined with minor cycle rotating bending moment and fluctuating torque, simulating life-limiting conditions at take-off. The objective of the study is to develop understanding of the fatigue behaviour of the coupling over a range of loading conditions, including interaction between low-cycle fatigue, fretting fatigue and fretting wea

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Bösch, Nadja, Martin Hofstetter, Alexander Bürki, Beatriz Vidondo, Fenella Davies, and Franck Forterre. "Effect of Facetectomy on the Three-Dimensional Biomechanical Properties of the Fourth Canine Cervical Functional Spinal Unit: A Cadaveric Study." Veterinary and Comparative Orthopaedics and Traumatology 30, no. 06 (2017): 430–37. http://dx.doi.org/10.3415/vcot-17-03-0043.

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Abstract Objective To study the biomechanical effect of facetectomy in 10 large breed dogs (>24 kg body weight) on the fourth canine cervical functional spinal unit. Methods Canine cervical spines were freed from all muscles. Spines were mounted on a six-degrees-of-freedom spine testing machine for three-dimensional motion analysis. Data were recorded with an optoelectronic motion analysis system. The range of motion wasdetermined inall threeprimary motionsaswellasrange of motion of coupled motions on the intact specimen, after unilateral and after bilateral facetectomy. Repeated-measures a

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