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Journal articles on the topic 'Joint displacements'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Ebraheim, Nabil A., Hua Yang, Jike Lu, and Ashok Biyani. "Computer Evaluation of Second Tarsometatarsal Joint Dislocation." Foot & Ankle International 17, no. 11 (1996): 685–89. http://dx.doi.org/10.1177/107110079601701107.

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Using computer-assisted techniques, this study analyzes the mean contact area of the articular surface of the second tarsometatarsal joint. The articular contact area decreased proportionate to the displacement in both males and females, but it was consistently greater in males than in females for all simulated displacements. The reduction in the contact area was the highest with dorsolateral displacement compared with the lateral and dorsal displacements. Dorsolateral displacement of the second metatarsal of 3 mm led to 38.6% reduction in the contact area, compared with 33.1% and 20.2% reduct

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2

Hara, A., and K. Sugimoto. "Synthesis of Parallel Micromanipulators." Journal of Mechanisms, Transmissions, and Automation in Design 111, no. 1 (1989): 34–39. http://dx.doi.org/10.1115/1.3258968.

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A synthesis method has been developed for the parallel micromanipulator used in a precise positioning. Elastic deformation at notches are used as joint displacements. Since the joint displacements are very small and the micromanipulator makes only a minute motion, the input/output relation can be put in the form of a Jacobian. Each row of the Jacobian designates six elements of a force and moment. By locating the passive joints in a connecting chain so that the virtual work done by the force/moment and the virtual displacement of the passive joints becomes zero, the mechanism that has the give

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3

Qiu, Shi Yin, Rui Bo Yuan, Guan You Wang, et al. "A Study of Calculation Method for Finger Joint Angular Displacement Based on the Finger Inverse Kinematics." Applied Mechanics and Materials 697 (November 2014): 327–33. http://dx.doi.org/10.4028/www.scientific.net/amm.697.327.

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A simple method for measuring and calculating the finger joint angular displacement was proposed to serve as the basis for designing dexterous hand and rehabilitation robot hand. The direct kinematics model and the inverse kinematics equation of the finger were established at the beginning of this paper. Then, the trajectory of the fingertip, from which the coordinates of the fingertip were extracted by using AutoCAD, was captured by camera. Finally, the trajectory coordinates of the fingertip were substituted into the inverse kinematics equations to solve the angular displacements of the prox

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Zhao, Hanwei, Youliang Ding, Satish Nagarajaiah, and Aiqun Li. "Longitudinal Displacement Behavior and Girder End Reliability of a Jointless Steel-Truss Arch Railway Bridge during Operation." Applied Sciences 9, no. 11 (2019): 2222. http://dx.doi.org/10.3390/app9112222.

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The long length and complex service load form conflicts with the low limits of longitudinal and transverse displacements of jointless bridge design. The longitudinal displacements of the Nanjing Dashengguan Yangtze River Bridge, a jointless steel-truss arch railway bridge, and its girder end reliability are investigated in this article. The time–frequency characteristics of the longitudinal displacements of bearings and expansion joints are analyzed using the empirical wavelet transform. The long-term characteristics of the longitudinal displacements of bearings and expansion joints in the ope

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Wang, Hao, Wen-Zhi Zheng, Jian Li, and Yu-Qi Gao. "Effects of temperature and lead core heating on response of seismically isolated bridges under near-fault excitations." Advances in Structural Engineering 22, no. 14 (2019): 2966–81. http://dx.doi.org/10.1177/1369433219855914.

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Seismic responses of bridges isolated by lead rubber bearings under near-fault excitations are presented in this article. A bilinear force-deformation model is employed to represent the hysteretic behaviors of lead rubber bearings. The joint effects of ambient temperature, initial displacement, and lead core heating on the responses of seismically isolated bridges are investigated. Nonlinear time history analyses are conducted with the employed hysteretic models of lead rubber bearings. Comparisons of the responses with and without the joint effects are performed, in terms of maximum isolator

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Clark, F. J., R. C. Burgess, J. W. Chapin, and W. T. Lipscomb. "Role of intramuscular receptors in the awareness of limb position." Journal of Neurophysiology 54, no. 6 (1985): 1529–40. http://dx.doi.org/10.1152/jn.1985.54.6.1529.

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We studied proprioception with the ankle joint and the metacarpophalangeal (MCP) joint of the index finger of humans by use of a method that could distinguish a position sense from a movement sense. The test measured how subjects' ability to detect a fixed displacement of a joint varied with the rate of joint rotation. A position sense should not depend on the speed of joint placement; therefore slow rates of movement should not degrade subjects' ability to sense joint displacements. However, in the absence of a position sense, subjects would presumably rely on movement signals that do depend

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Wojnar, A., K. Marszałek, O. Chernieva, and L. Śleczka. "INFLUENCE OF BOLTED SPLICE CONNECTIONS ON THE GLOBAL BEHAVIOUR OF STEEL LATTICE TELECOMMUNICATION TOWERS." Modern structures of metal and wood, no. 27 (July 2023): 41–51. http://dx.doi.org/10.31650/2707-3068-2023-27-41-51.

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The bolted joints in the leg and the bracing members of the lattice transmission towers are always subjected to predominant axial forces, which will cause joint slip that greatly affects the global be-haviour of the whole structure. The paper shows the results of the numerical modelling of the re-sponse of the steel lattice communication tower, with height h = 40.5 m located in Rzeszów. A comparison was made of five tower models, differing in the characteristics of the joint force-elongation relationship, including stiffness of the components and also joint slippage, coming from Category A joi

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8

Rastegar, J., L. Yuan, and J. Zhang. "Smart Actuator Positioning and Displacement Transmissibility in Serial and Parallel Robot Manipulators for Performance Enhancement." Journal of Mechanical Design 127, no. 4 (2004): 589–95. http://dx.doi.org/10.1115/1.1898340.

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A method is presented for the evaluation of the transmissibility of displacement from smart (active) actuators integrated in the structure of robot manipulators to the manipulator joint and end-effector displacements. The method is based on studying the characteristics of the Jacobian of the mapping function between the two displacements for a given position of the robot manipulator. The developed method provides a tool for the determination of the positioning of smart actuators to provide maximum effectiveness in eliminating high harmonics of the joint or the end-effector motion. In robots wi

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9

Chen, Lu Wang, Yuan Qin, Jiang Hong Chen, and Shi Lei Zhang. "Joint Controlling Effect on Stability of Surrounding Rock in Horseshoe-Shaped Underground Opening." Applied Mechanics and Materials 170-173 (May 2012): 1643–47. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.1643.

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This paper presents a numerical study on the mechanical behavior of the jointed rocks around the underground opening. By comparing different obliquities and the different locations of the joint, its controlling effect on stability of surrounding rock is evaluated in terms of the shear stress distribution, displacement distribution and the plastic zone pattern, which are induced by underground excavation. The results clearly indicate that, the maximum shear stress occurs mainly near the corner of the opening and the joint plane. When the joint inclination angle is less than 60º, the maximum ver

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10

Rapp, Piotr. "Numerical Non-Equilibrium and Smoothing of Solutions in The Difference Method for Plane 2-Dimensional Adhesive Joints / Nierównowaga Numeryczna i Wygładzanie Rozwiazań w Metodzie Różnicowej Dla Dwuwymiarowych Połączeń Klejowych." Civil And Environmental Engineering Reports 20, no. 1 (2016): 101–34. http://dx.doi.org/10.1515/ceer-2016-0010.

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Abstract The subject of the paper is related to problems with numerical errors in the finite difference method used to solve equations of the theory of elasticity describing 2- dimensional adhesive joints in the plane stress state. Adhesive joints are described in terms of displacements by four elliptic partial differential equations of the second order with static and kinematic boundary conditions. If adhesive joint is constrained as a statically determinate body and is loaded by a self-equilibrated loading, the finite difference solution is sensitive to kinematic boundary conditions. Displac

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11

Kim, Woo Seok, Soo Bong Park, Kang Min Lee, Jae Joon Song, and Sang Yoon Lee. "Joint Displacement Evaluation of a Modular Road System." Advanced Materials Research 831 (December 2013): 407–10. http://dx.doi.org/10.4028/www.scientific.net/amr.831.407.

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Transportation agencies have recently been struggling to carry out rapid roadway construction and repair work with minimal disruption to the motoring public, and they are pursuing sustainable and perpetual roadway systems with minimal maintenance over their service life. This study sought to develop a roadway joint system as a part of research on a sustainable-perpetual-modular (SPM) roadway system. In this study, two boundary conditions were considered with varying support offsets. Dead load, live load, and temperature load were considered and the corresponding displacements were computed. Ro

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12

Quan, Dengzhou, Shaobo Chai, Yuling Wang, Zhishuang Fan, and Yonghong Bu. "3-D Numerical Simulation of Seismic Response of the Induced Joint of a Subway Station." Buildings 13, no. 5 (2023): 1244. http://dx.doi.org/10.3390/buildings13051244.

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In recent times, induced joints have been set along the length of subway stations in order to avoid disordered cracking of the main structures occurring due to temperature stress, concrete shrinkage, creep, or uneven foundation settlement. At present, the use of induced joints in subway station structures is mainly based on engineering experience. The seismic response of induced joints has not yet been well explained, much less mastered. In this study, a 3-D numerical model of a subway station incorporating certain sorts of induced joints is established systematically. Then, the seismic respon

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13

Xu, Zhiming, and Yashuang Bai. "Pressure-relief joints of initial support structural system used in tunnels with high-stress surrounding rock." PLOS ONE 19, no. 4 (2024): e0297668. http://dx.doi.org/10.1371/journal.pone.0297668.

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To address the problem of large deformations in weak surrounding rock tunnels under high ground stress, which cause damage to initial support structures, this study proposes a novel type of circumferential pressure-relief joint based on the concept of relieving deformation pressure of the surrounding rock. Key parameters of the pressure-relief joint, such as initial bearing capacity peak, constant bearing capacity, and allowable pressure-relief displacement, were obtained through numerical simulations and laboratory experiments. A comparison was made between the mechanical characteristics of r

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14

Witkowski, Wojciech, Leszek Kuik, Magdalena Rucka, Karol Daszkiewicz, Angela Andrzejewska, and Piotr Łuczkiewicz. "Medially positioned plate in first metatarsophalangeal joint arthrodesis." PLOS ONE 16, no. 12 (2021): e0260572. http://dx.doi.org/10.1371/journal.pone.0260572.

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Objective The purpose of this study was to biomechanically compare the stability of first metatarsophalangeal (MTP1) joint arthrodesis with dorsally and medially positioned plates. Methods A physical model of the MTP1 joint consists of printed synthetic bones, a titanium locking plate and screws. In the experiments, samples with dorsally and medially positioned plates were subjected to loading of ground load character in a universal testing machine. Force-displacement relations and relative displacements of bones were recorded. The obtained results were used to validate the corresponding finit

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15

Chen, Jie, Sorin Siegler, and Carson D. Schneck. "The Three-Dimensional Kinematics and Flexibility Characteristics of the Human Ankle and Subtalar Joint—Part II: Flexibility Characteristics." Journal of Biomechanical Engineering 110, no. 4 (1988): 374–85. http://dx.doi.org/10.1115/1.3108456.

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The objective of the present study was to investigate the in-vitro, coupled, three-dimensional load-displacement and flexibility characteristics of the human ankle joint complex consisting of the talocrural and the talocalcaneal joints and to determine the effects that sectioning of the anterior talofibular ligament has on these characteristics. Similar to other anatomical joints such as the knee and the intervertebral joint, the ankle joint complex was found to exhibit highly nonlinear load-displacement characteristics with the angular displacement approaching asymptotic values as the externa

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16

Zhang, S. J., D. J. Sanger, and D. Howard. "The Mechanics of Parallel Mechanisms and Walking Machines." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 208, no. 6 (1994): 367–77. http://dx.doi.org/10.1243/pime_proc_1994_208_142_02.

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A parallel mechanism is one whose links and joints form two or more serially connected chains which join the fixed base and the end effector The mechanism of a multi-legged walking machine can be considered as a parallel mechanism whose base is not fixed and whose configuration changes during different phases of its gait. This paper presents methods for analysing the mechanics of parallel mechanisms and walking machines using vector and screw algebra Firstly, displacement analysis is covered; this includes general methods for deriving the position vector of any joint in any leg and for calcula

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17

Prado, Gabriela Dias, Hannah Barros Simões, Ana Carla de Souza Nascimento, Janaina Araújo Dantas, Maria Cristina Teixeira Cangussu, and Paulo Sérgio Flores Campos. "Posterior disc displacement: reviewing the concept of reduction and non-reduction." Brazilian Journal of Health Review 8, no. 1 (2025): e76987. https://doi.org/10.34119/bjhrv8n1-228.

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Background: Posterior disc displacement of the temporomandibular joint (TMJ) has been described before as a rare condition. Among the types of disc displacements previously described in the literature, Posterior disc displacement imaging characteristics still need to be further studied. Clinical presentation: We hereby present two clinical cases, with a more coherent and objective classification of posterior displacement with reduction, partial reduction, and without reduction of the articular disc of the temporomandibular joint. Clinical relevance: The cases here presented our concept of redu

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18

Megget, Leslie M. "The seismic behaviour of small reinforced concrete beam-column knee joints." Bulletin of the New Zealand Society for Earthquake Engineering 31, no. 4 (1998): 215–45. http://dx.doi.org/10.5459/bnzsee.31.4.215-245.

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The majority of research into beam-column knee joints has been conducted with monotonic loading. Many of these joints failed to reach their member moment capacity, especially under opening moments, while a few cyclic knee joint tests have been completed in the United States this decade. This paper describes the cyclic testing of 8 small knee joints designed to the 1995 New Zealand Concrete Standard. In addition two joints designed and detailed to the 1965 N.Z. Concrete Code were also tested. Joints with U-bar anchorages performed better than joints with standard 90 degree hook details on beam

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19

Angeles, Jorge. "The Qualitative Synthesis of Parallel Manipulators." Journal of Mechanical Design 126, no. 4 (2004): 617–24. http://dx.doi.org/10.1115/1.1667955.

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As shown in this paper, when designing parallel manipulators for tasks involving less than six degrees of freedom, the topology can be laid out by resorting to qualitative reasoning. More specifically, the paper focuses on cases whereby the manipulation tasks pertain to displacements with the algebraic structure of a group. Besides the well-known planar and spherical displacements, this is the case of displacements involving: rotation about a given axis and translation in the direction of the same axis (cylindrical subgroup); translation in two and three dimensions (two- and three-dimensional

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20

Dong, Linwei, Zhiyong Yang, Zhenyong Wang, Yaowen Ding, and Weiqiang Qi. "Study on Internal Force of Tunnel Segment by Considering the Influence of Joints." Advances in Materials Science and Engineering 2020 (October 30, 2020): 1–13. http://dx.doi.org/10.1155/2020/1020732.

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The mechanical performance of segments is an important aspect of the safety of tunnel structures. Study on the internal force of tunnel segment by considering the influence of joints is beneficial for obtaining a better understanding of the influence of various factors on the internal force of the segments. Based on the mechanical characteristics of shield segment joints, in which the displacements and stiffness are discontinuous, a mechanical model of the segment component under the constraints of elastic support was established. The elastic centre method and the principle of superposition we

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21

Le Hanneur, Malo, Andrew Thoreson, Damien Delgrande, et al. "Biomechanical Comparison of Anatomic and Extra-Anatomic Reconstruction Techniques Using Local Grafts for Chronic Instability of the Acromioclavicular Joint." American Journal of Sports Medicine 46, no. 8 (2018): 1927–35. http://dx.doi.org/10.1177/0363546518770603.

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Background: Anatomic reconstruction techniques are increasingly used to address cases of acromioclavicular (AC) joint chronic instability. These usually involve an additional surgical site for autograft harvesting or an allograft. Purpose: To describe a triple-bundle (TB) anatomic reconstruction using on-site autografts, the semiconjoint tendon (SCT) and the coracoacromial ligament (CAL), and compare its primary stability to the native AC joint ligamentous complex and to a modified Weaver-Dunn (WD) reconstruction. Study Design: Controlled laboratory study. Methods: Intact AC joints of 12 paire

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22

Sadowski, T., and M. Knec. "Application of Dic Technique for Monitoring of Deformation Process of Spr Hybrid Joints / Zastosowanie Techniki Dic Do Obserwacji Procesu Deformacji Hybrydowych Połaczen Typu Spr." Archives of Metallurgy and Materials 58, no. 1 (2013): 119–25. http://dx.doi.org/10.2478/v10172-012-0161-x.

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Digital Image Correlation (DIC) technique gives possibility to observe deformation process in many applications including self-piercing riveting (SPR) hybrid joint. The hybrid SPR joint consists of simple SPR joint made of two adherends, steel tubular rivet (total length of 5 mm) and an adhesive. The adhesive was applied before piercing process. For specimen preparation two different aluminum alloys were used: 2024 and 5005 (2mm thickness both) with tensile strength 400 and 160MPa, respectively. For better understanding of joint forming process and to allow DIC strains observation during the j

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Westesson, P. L. "Reliability and Validity of Imaging Diagnosis of Temporomandibular Joint Disorder." Advances in Dental Research 7, no. 2 (1993): 137–51. http://dx.doi.org/10.1177/08959374930070020401.

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The purpose of this article is to review reliability and validity of imaging diagnosis of temporomandibular joint disorders. Plain-film and tomography are basic imaging techniques for assessment of the temporomandibular joint. These can be used for evaluation of osseous disease and as a baseline for follow-up. In patients with symptoms from the joint, plain-film and tomography are rarely definitive, and evaluation of the soft tissues is frequently necessary. Arthrography, computed tomography, and magnetic resonance imaging have all been used for evaluation of the soft-tissue components of the

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Pahl, Timon, Albrecht Radtke, Joana F. Büttner, Thomas Mittlmeier, and Philipp Weißgraeber. "Biomechanical conditions of subtalar joint arthrodesis with calcaneal locking nail: A probabilistic numerical study." PLOS ONE 19, no. 11 (2024): e0314034. http://dx.doi.org/10.1371/journal.pone.0314034.

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Introduction Subtalar joint arthrodesis is primarily indicated for advanced osteoarthritis, hindfoot deformity, and/or instability. During the first 6-10 weeks after surgery, there is an intermediary structurally weaker state before complete bony fusion of the calcaneus and talus occurs. Loading of the foot can lead to mechanical stresses and relative movements in the former joint gap, which can impede the fusion process. The objective of this study was to examine the mechanical healing conditions for a subtalar arthrodesis with a calcaneal locking nail. Methods A probabilistic finite element

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Gál, J. M. "Mammalian spinal biomechanics. II. Intervertebral lesion experiments and mechanisms of bending resistance." Journal of Experimental Biology 174, no. 1 (1993): 281–97. http://dx.doi.org/10.1242/jeb.174.1.281.

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Three-point cyclic bending was applied to intervertebral joint complexes (three vertebrae with two intervertebral discs) of monkey (Macaca fascicularis), wallaby (Wallabia rufogrisea frutica), tiger (Panthera tigris), jaguar (Panthera onca) and seal (Halichoerus grypus). Force-displacement loops were recorded for intact specimens in both extension and flexion. Reductions in peak forces at given displacements were measured, following lesions of ventral ligaments, superspinous ligaments, interspinous ligaments and muscles, ligamenta flava and the articular capsules. Subsequently, the vertebral a

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Hsu, Emmie, Steve Bardfield, Bryant J. Cratty, and Alan Garfinkel. "Cinematographical Methods to Assess Associated Movements in Children." Adapted Physical Activity Quarterly 6, no. 3 (1989): 255–67. http://dx.doi.org/10.1123/apaq.6.3.255.

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This pilot study was conducted to test the usefulness of angle-angle diagrams and phase plane plots obtained through high-speed cinematographical methods for making graded assessments of associated movements in children. Kinematic data at the shoulder, elbow, and ankle joints of normal and motorically awkward children (5-7 years old) were obtained from digitized films of normal and heel walking trials on a motor driven treadmill. A computer program was developed to smooth, calculate, differentiate, and plot data. Angle-angle diagrams depicting simultaneous joint angular displacements of (a) sh

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Seo, Min Jwa, and Hyeon Ki Choi. "Joint Reaction Forces during the Recovery of Postural Balance of Human Body." Key Engineering Materials 297-300 (November 2005): 2308–13. http://dx.doi.org/10.4028/www.scientific.net/kem.297-300.2308.

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The purpose of this study was to calculate three dimensional angular displacements, moments and joint reaction forces (JRF) of the ankle joint during the waist pulling, and to assess the ankle JRF according to different perturbation modes and different levels of perturbation magnitude. Ankle joint model was assumed 3-D ball and socket joint which is capable of three rotational movements. We used 6 camera motion analysis system, force plate and waist pulling system. Two different waist pulling systems were adopted for forward sway with three magnitudes each. From motion data and ground reaction

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Xu, Zhun, Ziyu Feng, Zhaocong Zhang, Kunmu Zhang, and Yikai Li. "Manipulations of Oblique Pulling Affect Sacroiliac Joint Displacements and Ligament Strains: A Finite Element Analysis." Journal of Healthcare Engineering 2023 (January 3, 2023): 1–10. http://dx.doi.org/10.1155/2023/2840421.

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Objective. Clinical studies have found that manipulation of oblique pulling has a good clinical effect on sacroiliac joint pain. However, there is no uniform standard for manipulation of oblique pulling at present. The purpose of this study was to investigate the effects of four manipulations of oblique pulling on sacroiliac joint and surrounding ligaments. Methods. A three-dimensional finite element model of the pelvis was established. Four manipulations of oblique pulling were simulated. The stresses and displacements of sacroiliac joint and the strains of surrounding ligaments were analyzed

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Nazha, Hasan Mhd, Muhsen Adrah, Thaer Osman, et al. "Investigating Material Performance in Artificial Ankle Joints: A Biomechanical Study." Prosthesis 6, no. 3 (2024): 509–26. http://dx.doi.org/10.3390/prosthesis6030036.

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This study delves into an in-depth examination of the biomechanical characteristics of various materials commonly utilized in the fabrication of artificial ankle joints. Specifically, this research focuses on the design of an ankle joint resembling the salto-talaris type, aiming to comprehensively understand its performance under different loading conditions. Employing advanced finite element analysis techniques, this investigation rigorously evaluates the stresses and displacements experienced by the designed ankle joint when subjected to varying loads. Furthermore, this study endeavors to id

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Lerner, Amy L., Jose G. Tamez-Pena, Jeff R. Houck, et al. "The Use of Sequential MR Image Sets for Determining Tibiofemoral Motion: Reliability of Coordinate Systems and Accuracy of Motion Tracking Algorithm." Journal of Biomechanical Engineering 125, no. 2 (2003): 246–53. http://dx.doi.org/10.1115/1.1557615.

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The use of magnetic resonance imaging has been proposed by many investigators for establishment of joint reference systems and kinematic tracking of musculoskeletal joints. In this study, the intraobserver and interobserver reliability of a strategy to establish anatomic reference systems using manually selected fiducial points were quantified for seven sets of MR images of the human knee joint. The standard error of the measurement of the intraobserver and interobserver errors were less than 2.6°, and 1.2 mm for relative tibiofemoral orientation and displacement, respectively. An automated mo

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Duong, Bien Xuan, My Anh Chu, and Khoi Bui Phan. "Inverse dynamic analyzing of flexible link manipulators with translational and rotational joints." Science and Technology Development Journal 20, K2 (2017): 42–50. http://dx.doi.org/10.32508/stdj.v20ik2.447.

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Inverse dynamic problem analyzing of flexible link robot with translational and rotational joints is presented in this work. The new model is developed from single flexible link manipulator with only rotational joint. The dynamic equations are built by using finite element method and Lagrange approach. The approximate force of translational joint and torque of rotational joint are found based on rigid model. The simulation results show the values of driving forces at joints of flexible robot with desire path and errors of joint variables between flexible and rigid models. Elastic displacements

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Choi, Jung-Youl, Sang-Won Yun, Jee-Seung Chung, and Sun-Hee Kim. "Comparative Study of Wheel–Rail Contact Impact Force for Jointed Rail and Continuous Welded Rail on Light-Rail Transit." Applied Sciences 10, no. 7 (2020): 2299. http://dx.doi.org/10.3390/app10072299.

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In this study, the measured track impact factor induced by the wheel–rail contact impact force of each test section (two continuous welded rails on slab tracks and rail joint on a ballasted track) was compared with the design track impact factor under service conditions of a curved light-rail transit system. The measured track impact factor (TIF) was estimated from the measured dynamic wheel load and vertical rail displacement at each test section. In the case of the rail joint section, the rail joint was found to directly affect the track impact factor. Moreover, the dynamic wheel load fluctu

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López, Javier Bayod, Ricardo Becerro de Bengoa Vallejo, Marta Elena Losa Iglesias, Kevin T. Jules, and Manuel Doblaré. "Reduction of Dorsal Displacement of the Proximal and Middle Phalanges Using a Neutral or Angled Implant for Joint Arthrodesis to Treat Hammertoe Deformity." Journal of the American Podiatric Medical Association 105, no. 6 (2015): 493–502. http://dx.doi.org/10.7547/14-032.1.

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Background We used finite element analysis to study the mechanical displacements at three planes of the second through fourth hammertoes during the push-off phase of gait using a new neutral or 10° angled memory alloy intramedullary implant (FDA K070598) used for proximal interphalangeal joint arthrodesis. Methods After geometric reconstruction of the foot skeleton from computed tomographic images of a 36-year-old man, an intramedullary implant was positioned in the virtual model at the neutral and 10° angled positions at the proximal interphalangeal joints of the second through fourth hammert

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Clark, Graham, Ung Hing Tiong, and Aditya Jaya. "Aircraft Joints: the Interaction between Corrosion Protection and Structural Performance." Advanced Materials Research 275 (July 2011): 101–4. http://dx.doi.org/10.4028/www.scientific.net/amr.275.101.

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Aircraft joints feature prominently in aircraft structural degradation. Fatigue cracking and corrosion damage can reduce joint strength and degrade service life. Corrosion management can include use of paints and sealants and, increasingly, the application of Corrosion Inhibiting Compounds (CICs) which retard corrosion, by penetrating into crevices and cracks, and displacing water. A combination of coatings and CIC use can provide effective corrosion protection, but both interact - in different ways - with structural performance and overall system durability. This paper discusses the interacti

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Choi, Hyeon Ki, Si Yeol Kim, and Hyeon Chang Choi. "Biomechanical Analysis of the Musculoskeletal System of Human Foot by Using Passive Elastic Characteristics of Joint." Key Engineering Materials 353-358 (September 2007): 2231–34. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.2231.

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In this study we presented kinematic and kinetic data of foot joints by using passive elastic characteristics of joints during gait. During the calculation process we used approximate equations and partial plantar pressures. The maximum angular displacements of each tarsometatarsal joint ranged from 4o to 7o and the maximum moments were from 200N⋅cm to 1500N⋅cm. It was relatively wide distribution. Foot kinematic data calculated from the approximated equations, which were represented by the correlation between moment and angular displacement, and the data from motion analysis were very similar

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Wang, Weiguo, Yanping Wang, Binpeng Lan, and Guang Zheng. "Numerical Analysis of the Dynamic Response Law of Counter-Tilt Layered Rock Slopes." Sustainability 15, no. 18 (2023): 13525. http://dx.doi.org/10.3390/su151813525.

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Counter-tilt layered rock slopes are common types of slopes that are susceptible to destabilizing damage under seismic action. Therefore, the dynamic response law of counter-tilt layered rock slopes under seismic action is of great significance for the study of slope stability. This study utilizes UDEC (Universal Distinct Element Code) numerical simulation software to vary slope geometry and seismic wave parameters, such as joint thickness, joint inclination angle, slope angle, seismic wave frequency, amplitude, and duration. The maximum displacements of the monitoring points of a slope were o

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De Gaetano, G., D. Mundo, F. I. Cosco, C. Maletta, and S. Donders. "Concept Modelling of Vehicle Joints and Beam-Like Structures through Dynamic FE-Based Methods." Shock and Vibration 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/303567.

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This paper presents dynamic methodologies able to obtain concept models of automotive beams and joints, which compare favourably with the existing literature methods, in terms of accuracy, easiness of implementation, and computational loads. For the concept beams, the proposed method is based on a dynamic finite element (FE) approach, which estimates the stiffness characteristics of equivalent 1D beam elements using the natural frequencies, computed by a modal analysis of the detailed 3D FE model of the structure. Concept beams are then connected to each other by a concept joint, which is obta

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Changizi, K., and A. A. Shabana. "A Recursive Formulation for the Dynamic Analysis of Open Loop Deformable Multibody Systems." Journal of Applied Mechanics 55, no. 3 (1988): 687–93. http://dx.doi.org/10.1115/1.3125850.

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In this paper, a recursive formulation for the spatial kinematic and dynamic analysis of open chain mechanical systems containing interconnected deformable bodies, each of which may undergo large translational and rotational displacements, is developed. While approximation techniques such as the finite element method, Rayleigh-Ritz methods, or experimentally identified modal parameters can be used to introduce the elastic coordinates that describe the deformation of the bodies with respect to selected body references, the large rotational and translational displacements of a set of intermediat

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Mat Latip, Ummu Humairah, Wahyu Kuntjoro, Ramzyzan Ramly, and Rizal Effendy Mohd Nasir. "Modeling Comparison of 3D Printed Lap Joint Using Finite Element Analysis." JOURNAL OF APPLIED ENGINEERING DESIGN AND SIMULATION 2, no. 2 (2022): 1–10. http://dx.doi.org/10.24191/jaeds.v2i2.43.

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Lap joints are commonly used as a method of connecting structural parts. This includes parts that are made by 3D printing technology. Structural simulation using the finite element (FE) method can be used for lap joint analysis purposes. There are two approaches to use for the analysis of lap joints: actual bolt connection, and virtual bolt connection. Although an actual bolt connection is ideal to use, however in some cases it is impractical, for example when the number of joints and number of fasteners is huge. It is necessary to understand the behavior of these two different approaches for

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Martino, S., and P. Mazzanti. "Integrating geomechanical surveys and remote sensing for sea cliff slope stability analysis: the Mt. Pucci case study (Italy)." Natural Hazards and Earth System Sciences 14, no. 4 (2014): 831–48. http://dx.doi.org/10.5194/nhess-14-831-2014.

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Abstract. An integrated approach to the geomechanical characterization of coastal sea cliffs was applied at Mt. Pucci (Gargano promontory, Southern Italy) by performing field-based geomechanical investigations and remote geostructural investigations via a terrestrial laser scanner (TLS). The consistency of the integrated techniques allowed to achieve a comprehensive and affordable characterization of the main joint sets on the sea cliff slope. The observed joint sets were considered to evaluate the proneness of the slope to rock failures by attributing safety factor (SF) values to the topple-

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Wang, Cenyi, Ganfeng Yang, Haoping Yang, et al. "Research on Knee Joint Load and Influencing Factors of Typical Tai Chi Movements." Applied Bionics and Biomechanics 2022 (March 8, 2022): 1–11. http://dx.doi.org/10.1155/2022/6774980.

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Background. Tai chi is recognized worldwide for its rehabilitation abilities and healthcare benefits. However, in recent years, some movements associated with tai chi have been shown to damage the lower limb joints. The purpose of this study was to investigate and compare the effects of different movements, postures, center of mass (COM) movements, and range of knee movement of tai chi exercises on knee joint load. Methods. Fourteen professional tai chi practitioners in two postures (high and low) were enrolled to perform the following four typical tai chi movements: wild horse’s mane (WHM), r

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Johar, Mahzan, Mohamad Shahrul Effendy Kosnan, and Mohd Nasir Tamin. "Cyclic Cohesive Zone Model for Simulation of Fatigue Failure Process in Adhesive Joints." Applied Mechanics and Materials 606 (August 2014): 217–21. http://dx.doi.org/10.4028/www.scientific.net/amm.606.217.

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Progressive failure process of adhesive joint under cyclic loading is of particular interest in this study. Such fatigue failure is described using damage mechanics with the assumed cohesive behaviour of the adhesive joint. Available cohesive zone model for monotonic loading is re-examined for extension to capture cyclic damage process of adhesive joints. Damage evolution in the adhesive joint is expressed in terms of cyclic degradation of interface strength and stiffness. Mixed-mode fatigue fracture of the joint is formulated based on relative displacements and strain energy release rate of t

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Bhuyan, G. S., M. Arockiasamy, and K. Munaswamy. "Three-dimensional stress analysis of tubular joint using rezone technique." Canadian Journal of Civil Engineering 13, no. 3 (1986): 382–85. http://dx.doi.org/10.1139/l86-051.

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This note presents three-dimensional stress analysis results of a welded tubular T-joint under axial loading, using rezone technique. The rezone technique is used to reduce computer storage requirements, as well as solution costs, that result from the large number of degrees-of-freedom associated with three-dimensional analysis of the entire joint using solid elements. The hot-spot region around the weld toe and the weld reinforcement are modelled using three-dimensional incompatible 8-node brick and 6-node prism elements. The boundary nodal displacements for the rezoned model are obtained fro

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Dhall, S., and S. N. Kramer. "Design and Analysis of the HCCC, RCCC, and PCCC Spatial Mechanisms for Function Generation." Journal of Mechanical Design 112, no. 1 (1990): 74–78. http://dx.doi.org/10.1115/1.2912582.

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A computer aided design technique for the synthesis of spatial function generating mechanisms is presented. The Selective Precision Synthesis technique has been extended for the synthesis of the spatial HCCC, RCCC, and PCCC function generating mechanisms. These mechanisms consist of three cylindrical joints (C) and one each of a helical (H), revolute (R), and prismatic (P) joint, respectively. A closed form displacement analysis of the HCCC mechanism has also been presented. In this synthesis technique, for each input position the user specifies accuracy neighborhoods around the desired output

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Coutant, J. Ch, M. Mesnard, A. Ballu, J. Morlier, Ph Caix, and M. Cid. "Trajectories and kinematic characters in temporomandibular joint displacements." Computer Methods in Biomechanics and Biomedical Engineering 11, sup001 (2008): 63–65. http://dx.doi.org/10.1080/10255840802296657.

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Sophianopoulos, D. S., and A. N. Kounadis. "Dynamic Stability of Imperfect Frames under Joint Displacements." Journal of Engineering Mechanics 120, no. 8 (1994): 1661–74. http://dx.doi.org/10.1061/(asce)0733-9399(1994)120:8(1661).

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Mariz, Ana Carolina Ramos, Paulo Sérgio Flores Campos, Viviane Almeida Sarmento, Maria Olívia Dias Gonzalez, Jurandyr Panella, and Carlos Maurício Cardeal Mendes. "Assessment of disk displacements of the temporomandibular joint." Brazilian Oral Research 19, no. 1 (2005): 63–68. http://dx.doi.org/10.1590/s1806-83242005000100012.

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The aim of the present research was to evaluate disk displacements (DDs) of the temporomandibular joint (TMJ) among patients referred for magnetic resonance imaging (MRI) scans, and analyze the type and prevalence of DD, gender, age, side distribution, reciprocal clicking, presence of pain, range of mouth opening movement, and dental condition. The sample comprised 113 patients, 12-78 years old (the age average was 36.4 ± 13.5 years), 92 females and 21 males, who underwent MRI between July 2001 and December 2002. A Signa Horizon system (GE) MRI scanner was used at a magnetic field magnitude of

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Uysal, Dr Mine Uslu. "Displacement Behavior of Single-lap Joints Made from Functionally Graded Polymeric Materials." International Journal of Engineering and Advanced Technology 12, no. 2 (2022): 119–22. http://dx.doi.org/10.35940/ijeat.b3949.1212222.

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For adhesively bonded joint security and long-term use of the joint, a precise stress analysis must be performed on single-lap joints. A single-lap joint, formed by joining two layers at a given lap length, is the most widely used adhesive joint type in practice. Nowadays, it is stated that the mechanical properties and joint strength can be increased by adding clay and graphite to the polymeric material used in single-lap joints, trying to estimate the joint strength for various loading conditions. This paper focuses on the bending moment behavior of a single-lap joint composed of newly desig

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Dr., Mine Uslu Uysal. "Displacement Behavior of Single-lap Joints Made from Functionally Graded Polymeric Materials." International Journal of Engineering and Advanced Technology (IJEAT) 12, no. 2 (2022): 119–22. https://doi.org/10.35940/ijeat.B3949.1212222.

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<strong>Abstract: </strong>For adhesively bonded joint security and long-term use of the joint, a precise stress analysis must be performed on single-lap joints. A single-lap joint, formed by joining two layers at a given lap length, is the most widely used adhesive joint type in practice. Nowadays, it is stated that the mechanical properties and joint strength can be increased by adding clay and graphite to the polymeric material used in single-lap joints, trying to estimate the joint strength for various loading conditions. This paper focuses on the bending moment behavior of a single-lap jo

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Šedek, Jakub, and Roman Růžek. "Magna-Lok rivet joint and the stiffness-equivalent FE model." Aircraft Engineering and Aerospace Technology 91, no. 6 (2019): 834–42. http://dx.doi.org/10.1108/aeat-07-2018-0188.

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Purpose The purpose of this paper is to present a methodology for the determination of the stiffness when using simplified substitutive model of the joint. The usage of detailed finite element (FE) model of the joint in complex assemblies is not convenient; therefore, the substitutive model of the joint is used in FE models. Design/methodology/approach The detailed and simplified FE model of the joint is created in ABAQUS software and the analysis as well. The results of displacements are used for the determination of the stiffness of connecting element in simplified substitutive FE model. The

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