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Journal articles on the topic 'Hinge mechanism'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Uyen, Tran Minh The, Pham Son Minh, Van-Thuc Nguyen, Thanh Trung Do, Hai Nguyen Le Dang, and Van Thanh Tien Nguyen. "Amplification Ratio of a Recycled Plastics-Compliant Mechanism Flexure Hinge." Applied Sciences 13, no. 23 (2023): 12825. http://dx.doi.org/10.3390/app132312825.

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This research focuses on the fabrication of plastic flexure hinges from diverse plastics such as ABS, PP, HDPE, and LDPE. To enhance hinge efficiency, the recycling ratios are also investigated. The amplification ratio of different recycle ratios and plastic types are measured. The results show that the input and output displacements of all PP, ABS, and HDPE hinges are linear. The presence of recycled plastics has no impact on this basis. The pure PP, ABS, and HDPE flexure hinges achieve the highest amplification ratios of 5.728, 8.249, and 5.668. The addition of recycled plastics reduces the

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2

Sawant, M. M., and P. R. Anerao. "Investigation of Circular Flexural Hinge Used in Compliant Mechanism Using FEA Tool." International Journal of Engineering Technology and Sciences 3, no. 1 (2016): 34–42. http://dx.doi.org/10.15282/ijets.5.2016.1.5.1044.

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To reduce fatigue failure of compliant mechanism, it is necessary to design and analyze the flexure hinge parametrically. A methodology to design a flexural hinges for compliant mechanism is proposed in this paper to improve fatigue life. Results obtained by finite element analysis shows that used design equations are reliable and easier to be used in the design of such proportion flexural hinges. The proposed analytical model gives a new viewpoint on the design of circular flexure hinge based compliant mechanisms. Circular flexural joint was manufactured by using Al 6061 T6 material and exper

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3

Šalinić, Slaviša. "A pseudo-rigid-body approach for determination of parasitic displacements of lumped compliant parallel-guiding mechanisms." Engineering Today, no. 00 (2023): 10. http://dx.doi.org/10.5937/engtoday2300008s.

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Parasitic displacements of a guiding plate of a lumped compliant parallel-guiding mechanism are analyzed using the pseudo-rigid-body (PRB) approach. Small deformations of flexure hinges are assumed. Each flexure hinge of the compliant mechanism is modelled by the PRB model with 3-DOF (degrees of freedom). This model allows that axial deformation of the flexure hinge to be considered. The corresponding expressions in symbolic form for both translational and rotational parasitic displacements of the compliant mechanism are derived. The obtained expressions enable the analysis of the influence of

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4

Bai, You Dun, Zhi Jun Yang, Xin Chen, and Meng Wang. "Optimal Structural Design of Micro-Motion Stage with Stiffness Constraints Using Topology and Sizing Optimization Method." Key Engineering Materials 679 (February 2016): 55–58. http://dx.doi.org/10.4028/www.scientific.net/kem.679.55.

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Flexure hinge is widely used in the compliant mechanisms for precision engineering. Generally, compliant mechanisms with flexure hinges are designed using the analytical stiffness formulas, which increases the design complexity. As the development of finite element analysis (FEA) and optimization methods, it is likely to design the flexure hinges directly using the FEA based numerical optimization methods. This paper developed a leaf spring type flexure hinge based micro-motion stage with specific stiffness constraints. Both topology and sizing optimization methods are used in the design of mo

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Chilukoti, Neeraja, C. M. Santosh Kumar, and Shekhar C. Mande. "GroEL2 of Mycobacterium tuberculosis Reveals the Importance of Structural Pliability in Chaperonin Function." Journal of Bacteriology 198, no. 3 (2015): 486–97. http://dx.doi.org/10.1128/jb.00844-15.

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ABSTRACTIntracellular protein folding is mediated by molecular chaperones, the best studied among which are the chaperonins GroEL and GroES. Conformational changes and allosteric transitions between different metastable states are hallmarks of the chaperonin mechanism. These conformational transitions between three structural domains of GroEL are anchored at two hinges. Although hinges are known to be critical for mediating the communication between different domains of GroEL, the relative importance of hinges on GroEL oligomeric assembly, ATPase activity, conformational changes, and functiona

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Mohammed, Ali Khatib, Sayyed Azizuddin, Shaik Joseemuddin, and Ansari Yusuf. "Mid Hinged CCTV Pole for EasyMaintenance." International Journal of Innovative Science and Research Technology 8, no. 5 (2023): 2374–79. https://doi.org/10.5281/zenodo.8015787.

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A counterweight hinged pole which allows easy access to the CCTV camera attached at the top of the pole to be accessed. Hinged pole consists of a support base, and middle support pole which is attached to the base, and which has a hinge located at the end opposite the base. A top pole to which the CCTV Camera are attached is affixed to the hinge. A second bottom member is also attached to the hinge and is an extension of the toppole in the opposite direction. A rope attached to the top of the CCTV Camera pole enables a worker to lower the pole fixtures by applying tension to the rope. The top

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7

Lu, Ning Zhou, Zheng Yan Zhang, and Ding Fang Chen. "Cognates and Spherical Hinge Replacement of Spatial RSSR Mechanism." Applied Mechanics and Materials 34-35 (October 2010): 1822–28. http://dx.doi.org/10.4028/www.scientific.net/amm.34-35.1822.

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This paper resolves spatial RSSR mechanism in D-H coordinates to obtain its position equations. By extending Roberts-Chebyschev Theorem, it is demonstrated mathematically that RSSR mechanism possesses the same character as planer four-bar linkages in generating cognates. Considering strict requirements of spherical hinges in manufacture and assembly, this paper then addresses substitution methods of spherical hinge in RSSR mechanism, including constraining DOF of spherical pair by specific structural dimensions and replacing high pair by combinations of low pairs, while taking examples of sphe

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8

Krishnan, Navaneetha, Axelle Viré, and Rikus van de Klippe. "Study of a passive pitching rotor using blade element momentum theory coupled to a rigid-body model." Journal of Physics: Conference Series 2265, no. 3 (2022): 032057. http://dx.doi.org/10.1088/1742-6596/2265/3/032057.

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Abstract Misaligned wind turbine rotors experience uneven loads because of two effects: dissymmetry of lift, and skewed wake effect. Rotor-crafts that have a similar problem introduce various mechanisms to combat this — one of them is to add a δ3-hinge. The hinge provides the blade with an additional degree of freedom to relieve the unbalanced loads; in theory, it is a self-correcting mechanism. In this work, we couple a blade element momentum (BEM) approach for the aerodynamics to a rigid-body model that simulates the hinge rotation. The results from BEM are used to identify the working mecha

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9

Dao, Thanh Phong, and Shyh Chour Huang. "Design and Analysis of Compliant Rotary Joint." Applied Mechanics and Materials 372 (August 2013): 467–70. http://dx.doi.org/10.4028/www.scientific.net/amm.372.467.

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Unlike rigid-body mechanisms, compliant mechanisms (CMs) gain some or all of their motion from relative flexibility of their joints. This paper presents a pseudo-rigid-body model (PRBM) method and virtual work to design and analyze kinematics and dynamics for compliant rotary joints or flexure hinges in the processing of compliant mechanisms. The stress at flexible pivot, the nonlinear-large deflection of flexure hinge, the relationship between displacement and force and/or torque, stress were taken into account in this work based on PRBM. A numerical software package, ANSYS, was exploited to

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10

Bertomeu, José María Baydal, Juan Manuel Belda Lois, Ricard Barberà Guillem, et al. "Development of a hinge compatible with the kinematics of the knee joint." Prosthetics and Orthotics International 31, no. 4 (2007): 371–83. http://dx.doi.org/10.1080/03093640601095842.

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This study aims to present a new concept of a knee hinge based on a crossed four-bar linkage mechanism which has been designed to optimally follow a motion curve representing the knee kinematics in the position at which the knee hinge should be placed. The methodology used to determine the optimal knee hinge is based on the optimization of certain variables of the crossed four-bar mechanism using genetic algorithms in order to follow a certain motion curve, which was determined using a biomechanical model of the knee motion. Two current, commercially available knee hinges have been used to the

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Zeng, Liting, and Ning Li. "Modeling and analysis of bridge lever mechanism based on piezoelectric drive." Journal of Physics: Conference Series 3043, no. 1 (2025): 012050. https://doi.org/10.1088/1742-6596/3043/1/012050.

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Abstract To enhance the amplification ratio of a single bridge amplification mechanism, a novel bridge-lever amplification mechanism based on hybrid hinges is proposed. This new design combines the symmetry and compactness of traditional bridge mechanisms with the structural flexibility and environmental adaptability of lever mechanisms, achieving a higher amplification ratio. A static model is established by using the compliance matrix method to analyze relative amplification ratios under different hinge configurations. Simulations show optimal performance when the first stage uses V-shaped h

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12

Chen, Qing Lin, and Qi Lin. "Dynamic Analysis on Flexible Cable-Driven Parallel Mechanism." Advanced Materials Research 1006-1007 (August 2014): 298–303. http://dx.doi.org/10.4028/www.scientific.net/amr.1006-1007.298.

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The interference between cables and surface of acutator limits the movement in the cable-driven parallel mechanism. The mechanism with fixed hinge can’t absolutely avoid the interference point of the track when using linear programming method. One new method, named as distant interference, was proposed to pick out all the interferential points of the track. Based on the principle of symmetrical force, the alteration to position of the six fixed hinges and two extensive hinges eliminated the interference. Through the simulation of combined spiral movement, the workspace of the flexible cable-dr

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13

Nguyen, Van Khien, Duy Luong Tuong, Huy Tuan Pham, and Huy Hoang Pham. "Design and Optimization of a New Hollow Circular Flexure Hinge for Precision Mechanisms." Applied Mechanics and Materials 889 (March 2019): 337–45. http://dx.doi.org/10.4028/www.scientific.net/amm.889.337.

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Flexure hinges have been used in many precision mechanisms where repeatable, friction free motion and high precision are required. Many kinds of flexure profiles have been proposed during the past decade. This paper presents a new type of flexure hinge which combines circular longitudinal axis beams to form hollow joint. This novel design will help to improve the range of motion, reduce stress level and increase the maximum load before yielding. Due to its special design, the cavity inside the hinge can also be filled with an elastomeric filler material to provide vibration damping. In order t

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14

Guo, Hong Wei, Zhong Jie Li, Zong Quan Deng, Chuang Shi, and Rong Qiang Liu. "A Low-Impact Deployment Hinge Based on a Novel Intermittent Mechanism." Applied Mechanics and Materials 643 (September 2014): 302–9. http://dx.doi.org/10.4028/www.scientific.net/amm.643.302.

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A novel intermittent mechanism and low-impact deployment hinge based on intermittent mechanism are presented in this paper. This application is contemplated to lower the impact dramatically at the end of hinge deployment. The overall deployment process is described and the maximum impact force and angular velocity are derived. The effect of the intermittent motion mechanism on free spring deployable hinges is evaluated by indexes of maximum angular velocity and impact force. Cases are simulated to verify the mechanism design, and results show that the maximum angular velocity and impact force

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15

Lobontiu, Nicolae, and Jeffrey S. N. Paine. "Design of Circular Cross-Section Corner-Filleted Flexure Hinges for Three-Dimensional Compliant Mechanisms." Journal of Mechanical Design 124, no. 3 (2002): 479–84. http://dx.doi.org/10.1115/1.1480022.

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The paper introduces the circular cross-section corner-filleted flexure hinges as connectors in three-dimensional compliant mechanism applications. Compliance factors are derived analytically for bending, axial loading and torsion. A circular cross-section corner-filleted flexure hinge belongs to a domain delimited by the cylinder (no fillet) and the right circular cross-section flexure hinge (maximum fillet radius). The analytical model predictions are confirmed by finite element simulation and experimental measurements. The circular cross-section corner-filleted flexure hinges are characteri

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16

Jiawei, Wang, and Sun Quansheng. "Experimental research on compressive strength of UHPC spherical hinge." International Journal of Structural Integrity 11, no. 2 (2019): 354–78. http://dx.doi.org/10.1108/ijsi-06-2019-0057.

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Purpose In order to reduce the impact of bridge construction on traffic under the bridge, the construction of bridges for some important traffic nodes usually adopts the swivel construction method. The spherical hinge is a rotating mechanism located between the bottom of the pier and the bridge cap, and is subjected to tremendous vertical pressure. According to the mechanical characteristics of the spherical hinges, this paper applies the ultra-high performance concrete (UHPC) material to the spherical hinge. The spherical hinge is subjected to a compression test to test its mechanical behavio

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17

Liang, Lu, Yan An Zhang, Lin Yong Shen, and Jin Wu Qian. "Design and Analysis of a Parallel Robot with Flexure Hinges for Target Alignment System." Applied Mechanics and Materials 303-306 (February 2013): 1647–52. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.1647.

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In this paper we present a parallel robot with flexure hinges for target alignment system of a high power laser facility. The robot contains a parallel mechanism with 6 DOF which has nanometer positioning accuracy and is driven by six linear actuators. We design a new flexure hinge which has higher accuracy, strong environmental suitability and simple structure compared with conventional flexure hinge which has backlash and friction issues. The kinematics analysis of the parallel mechanism is also discussed. The simulation analysis of the mechanism is done by ADAMS. The mechanism is proved mee

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18

Alwis, W. A. M. "Nonuniqueness in Elastoplastic Frames." Journal of Applied Mechanics 59, no. 3 (1992): 688–90. http://dx.doi.org/10.1115/1.2893784.

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Lack of uniqueness of the kinematic solution of elastoplastic flexural frames is studied by deriving a general solution for nonholonomic behavior. A singular hinge set is defined as a collection of plastic hinges that would form a mechanism if they were replaced by mechanical hinges. It is shown that whenever singular subsets can be found among active plastic hinges, the kinematic solution may become nonunique. The rate of work done by the load rates on the contributing mechanisms must be zero if a prevailing nonuniqueness is to sustain.

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19

Gao, Qi, Meng He, Xiaohui Lu, Chi Zhang, and Tinghai Cheng. "Simple and high-performance stick-slip piezoelectric actuator based on an asymmetrical flexure hinge driving mechanism." Journal of Intelligent Material Systems and Structures 30, no. 14 (2019): 2125–34. http://dx.doi.org/10.1177/1045389x19862376.

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This article presented a new type of stick-slip piezoelectric actuator based on an asymmetrical flexure hinge driving mechanism. The key of the driving mechanism was a four-bar mechanism with different minimum thicknesses of right-circle flexure hinges. Combined with a symmetrical indenter, the asymmetrical flexure hinge driving mechanism generated controllable tangential displacement by changing the locking force. Therefore, the simple structured stick-slip piezoelectric actuator achieved considerable improvements especially in output speed and efficiency. In order to obtain improved actuator

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20

De Souza Xavier, Paloma, and Marcos Antonio Da Silva Junior. "CONTRA A INEFABILIDADE DAS HINGE PROPOSITIONS." Revista Ideação 1, no. 47 (2023): 104–21. http://dx.doi.org/10.13102/ideac.v1i47.9947.

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Resumo: O conceito de “proposições-dobradiça” (hinge propositions) possui diversas interpretações que se remetem também ao Tractatus e às Investigações. Moyal-Sharrock (2004), por exemplo, defende que as hinge propositions são inefáveis. Para a intérprete, as hinge certainties não podem ser ditas, pois caso isso ocorresse, o jogo de linguagem se solidificaria. Mas se, de fato, as hinge certainties fossem indizíveis, como poderíamos proceder com casos de desacordo entre certezas fulcrais distintas e rivais? A tese da inefabilidade das hinges parece ser inadequada, visto que inviabiliza o diálog

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21

Somani, Vasav, Ashraf Shaikh, Mohan M. Desai, Nikhil Karwande, and Kanav Somani. "A Rare Case of Posterior Dislocation of Hinge Knee Prosthesis due to Wear of Anti-Luxation Device: A Case Report." Journal of Orthopaedic Case Reports 14, no. 10 (2024): 173–77. http://dx.doi.org/10.13107/jocr.2024.v14.i10.4852.

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Introduction: Hinge knee joint prosthesis are utilized in a variety of surgical scenarios, including complex primary, revision, salvage surgeries, and radical resection of tumor’s. Link’s Endo-model Hinged Knee Prosthesis is a newer design that includes ramped tibial components for controlled pivot point motion during flexion and an anti-dislocation feature to prevent prosthesis dislocation.. The re-design of the hinge prosthesis has resulted in less force transfer along the implant bone junction. However, despite the improved design, complications can still arise. This report presents a rare

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22

Wang, Han, Shilei Wu, and Zhongxi Shao. "Analytical Compliance Equations of Generalized Elliptical-Arc-Beam Spherical Flexure Hinges for 3D Elliptical Vibration-Assisted Cutting Mechanisms." Materials 14, no. 20 (2021): 5928. http://dx.doi.org/10.3390/ma14205928.

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Elliptical vibration-assisted cutting technology has been widely applied in complicated functional micro-structured surface texturing. Elliptical-arc-beam spherical flexure hinges have promising applications in the design of 3D elliptical vibration-assisted cutting mechanisms due to their high motion accuracy and large motion ranges. Analytical compliance matrix formulation of flexure hinges is the basis for achieving high-precision positioning performance of these mechanisms, but few studies focus on this topic. In this paper, analytical compliance equations of spatial elliptic-arc-beam spher

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23

Feng, Yunwen, Zhiyu He, Xiaofeng Xue, and Meng Dong. "Dynamic simulation of complex multi-hinge space flap mechanism." Journal of Physics: Conference Series 2235, no. 1 (2022): 012072. http://dx.doi.org/10.1088/1742-6596/2235/1/012072.

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Abstract Dynamics simulation of large civil aircraft complex multi-hinge space flap mechanism was studied, and a set of dynamics simulation modeling method of complex multi-hinge space flap mechanism based on Motionview was proposed. Firstly, a moving digital prototype of the complex multi-hinge space mechanism was constructed. The multi-point constraint RBE3 element was used to associate the intersection points of the rigid multi-hinge mechanism to the body of the flap surface considering flexibility, and the rigid-flexible coupling dynamic model of the flap mechanism was formed. The dynamics

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Feng, Yunwen, Zhiyu He, Shuai Li, Xiaofeng Xue, and Mingyue Cao. "Parameter sensitivity analysis under failure condition of lifting device mechanism." Journal of Physics: Conference Series 2472, no. 1 (2023): 012060. http://dx.doi.org/10.1088/1742-6596/2472/1/012060.

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Abstract The sensitivity of each influencing parameter in the selected range of the complex multi-hinge space flap mechanism under typical fault conditions is studied, and the influence degree of each parameter and its dispersion on the driving torque of the mechanism is determined. Firstly, the rigid-flexible coupling dynamic model of the mechanism is established considering the flap deformation, and then the influence of four parameters that may cause mechanism failures, such as hinge friction, aerodynamic load, driving speed and assembly error, on the driving torque of the mechanism is expl

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25

Li, Yan, Wenjie Ge, Xu Zhang, and Xinxing Tong. "Optimization and Experiment of a Novel Compliant Focusing Mechanism for Space Remote Sensor." Sensors 20, no. 23 (2020): 6826. http://dx.doi.org/10.3390/s20236826.

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The change of an external environment leads to the defocusing phenomenon of the space optical remote sensor. The performance of the focusing mechanism is related to the image quality of the remote sensor. It was optimized for a novel focusing mechanism comprised of a flexural hinge lever-type amplifier and several piezoelectric ceramics to improve the performance on high loads and large stroke in this research. It has advantages of a lightweight, simple structure and high reliability compared with the traditional focusing mechanism. The input displacement from the piezoelectric actuators was a

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26

Zhang, Yonghong, Chengmin Wang, Shuangquan Tang, You Jiang, Hong Chen, and Wenjie Ge. "Theoretical Stiffness Modeling and Application Research of a Novel Stacked Flexure Hinge." Aerospace 10, no. 7 (2023): 636. http://dx.doi.org/10.3390/aerospace10070636.

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This study investigates and designs a novel stacked hinge with low stiffness, large rotation angle, high strength, and length-adaptive functionality. Firstly, based on the large deformation theory of cantilever beams and relevant theories of leaf springs, a stiffness theoretical model for stacked flexure hinges is established. Subsequently, the stiffness theoretical model is further modified by considering the frictional force, aiming to reduce errors. Secondly, a stiffness-testing experimental platform for this flexure hinge is designed to verify the correctness of the theoretical model. Fina

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27

Xu, SiQiang, XiaoBo Zhu, ZeGuang Dong, and PinKuan Liu. "Nonlinear modeling and analysis of compliant mechanisms with circular flexure hinges based on quadrature beam elements." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 233, no. 9 (2018): 3277–85. http://dx.doi.org/10.1177/0954406218802945.

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Linear modeling approaches for compliant mechanisms attract significant attention. However, geometrical nonlinearities require consideration generally because they may result in the modeling error. This paper presents a nonlinear quadrature beam element modeling approach for compliant mechanisms. The geometrically exact beam theory is employed as the basis for the element. Meanwhile, the element tangent stiffness matrix is obtained by using the weak form quadrature element method, which does not need shape functions any more and only performs simple algebraic operations of weighting coefficien

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28

Wang, Jia, and Fangyuan Li. "Numerical Simulation Analysis of the Seismic Performance of Precast Bridge Piers." Mathematical Problems in Engineering 2022 (May 6, 2022): 1–11. http://dx.doi.org/10.1155/2022/6337791.

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Precast technology is increasingly favoured by bridge engineers, and the seismic performance of precast bridge piers urgently needs to be addressed. Precast piers have a complex load-bearing mechanism, and their design method has not been clearly determined. Fibre plastic hinge theory can satisfactorily analyse the seismic performance of precast piers. In this study, the seismic performance of precast piers is analysed through numerical simulation of pier columns based on the pseudostatic testing of a set of existing precast piers and combined with fibre plastic hinge theory. The results show

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29

Chvartatskiy, I. I. "Research of hinged joint of screw sectional working body." Naukovij žurnal «Tehnìka ta energetika» 11, no. 4 (2020): 81–87. http://dx.doi.org/10.31548/machenergy2020.04.081.

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The purpose of research is to determine the optimal design parameters of the hinged connection of the sectional screw working body, as well as to determine the impact of these parameters on the performance of this mechanism. The object of research is the processes of transportation of bulk materials along curvilinear routes by flexible articulated screw conveyors. The subject of the research is hinged-section screw working bodies and their parameters. The method of calculation of hinged connection of screw sectional working body is offered in the work. Calculations and analysis of changes in t

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Soroka, M. "MECHANISMS OF PLASTIC DESTRUCTION OF ARCHES." Mechanics And Mathematical Methods 6, no. 2 (2024): 88–99. http://dx.doi.org/10.31650/2618-0650-2024-6-2-88-99.

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The method of determining the limit load for double-hinged and hingeless arches of fixed and variable rigidity is considered. The calculation is performed using the limit equilibrium method. Arches under the influence of a vertical uniformly distributed load are considered. The cross section is taken in the form of a non-reinforced rectangle. The stress-strain state of an elastic-plastic material is described by the Prandtl diagram. The peculiarities of material deformation are that the yield limits in tension and compression are different. The determination of the limit load is based on takin

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31

Carlson, Sandra J. "Evolutionary trends in the articulate brachiopod hinge mechanism." Paleobiology 18, no. 3 (1992): 344–66. http://dx.doi.org/10.1017/s0094837300010885.

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Evolutionary patterns in the articulate brachiopod hinge are investigated and this empirical example is used as a model to examine evolutionary trends and evolutionary constraints. Several features of the hinge-system geometry exhibit persistent directional change from the Cambrian to the Recent and result in increased mechanical advantage in opening the valves. These geometric changes are reflected also in general features of shell morphology and growth and in patterns of familial diversity through time. Specific, identifiable constraints on brachiopod morphology and function related to the p

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Serhii, Strutynskyi, and Nochnichenko Igor. "DESIGN OF PARALLEL LINK MOBILE ROBOT MANIPULATOR MECHANISMS BASED ON FUNCTION-ORIENTED ELEMENT BASE." Eastern-European Journal of Enterprise Technologies 4, no. 7 (100) (2019): 54–64. https://doi.org/10.15587/1729-4061.2019.174613.

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To create effective mobile robot manipulators, a function-oriented element base is proposed. Element base selection is based on the analysis of schematics of mobile robot manipulators. It is substantiated that the effective schematics of manipulators are parallel link mechanisms. A rational structural scheme was adopted as a mechanism having six rods of variable length (hexapod). The schemes of mobile robot manipulators with different numbers and types of combined rod supports are considered. It is proved that the same type of element base in the form of spherical hinges can be used to impleme

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Ahn, Da Hoon, Dae Gab Gweon, and Dong Pyo Hong. "Simulation to Compensate Ripple of Air Bearing Stage with Flexure Hinge Mechanisms." Advanced Materials Research 301-303 (July 2011): 1795–99. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.1795.

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This letter suggests a method to improve tracking performance of an H-type XY stage with air bearings and flexure hinge mechanisms. The flexure hinge mechanisms are employed to prevent failure of the air bearings when the yaw motion error of the H-type stage is controlled using a control algorithm called gantry control. Adoption of the flexure hinge mechanism combined with the gantry control leads to occurrence of mutual ripple. Ripple should be handled to obtain good tracking performance. Modeling of the mutual ripple and simulation of two compensation algorithms are presented.

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Shiokawa, Yuma, Renke Liu, and Hideyuki Sawada. "A Biomimetic Flapping Mechanism for Insect Robots Driven by Indirect Flight Muscles." Biomimetics 10, no. 5 (2025): 300. https://doi.org/10.3390/biomimetics10050300.

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Insect flight mechanisms are highly efficient and involve complex hinge structures that facilitate amplified wing movement through thoracic deformation. However, in the field of flapping-wing robots, the replication of thoracic skeletal structures has received little attention. In this study, we propose and compare two different hinge models inspired by insect flight: an elastic hinge model (EHM) and an axle hinge model (AHM). Both models were fabricated using 3D printing technology using PLA material. The EHM incorporates flexible structures in both the hinge and lateral scutum regions, allow

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Choi, K.-B., and C. S. Han. "Optimal design of a compliant mechanism with circular notch flexure hinges." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 221, no. 3 (2007): 385–92. http://dx.doi.org/10.1243/0954406jmes312.

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This paper presents an optimal design of a compliant mechanism with circular notch flexure hinges as well as a performance evaluation of a two-axes ultra-precision stage using the compliant mechanism. The compliant mechanism consists of two double-symmetric four-link mechanisms for two translational motions. As the circular notch flexure hinge can produce rotation as well as axial translation via its deformation, the double symmetric four-link mechanism can translate along one direction in a small range. In the optimal design, a composite global design index based on Min-Max principle is appli

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Chen, F.-C. "Analysis and Verification of a Watt I Six-Bar Furniture Hinge Mechanism." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 219, no. 10 (2005): 1107–17. http://dx.doi.org/10.1243/095440605x31922.

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The analysis and verification of a Watt I six-bar furniture hinge mechanism were carried out in this article. Using the characteristics of the topological structure of existing hinge mechanisms and design requirement specification, six hinge designs were synthesized. The most suitable design was selected for kinematic analysis with the vector loop method. The equations of motion of the mechanism were then derived by the Hamilton principle and Lagrange undetermined multipliers method and simplified using coordinate partitioning method. The differential algebraic equation was subsequently solved

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Jeong, Ju Won, Young Ik Yoo, Jung Ju Lee, Jae Hyuk Lim, Kyung Won Kim, and Do Soon Hwang. "Development of a Novel Deployment Hinge Mechanism for a Spacecraft Using Axiomatic Design." Advanced Materials Research 314-316 (August 2011): 863–71. http://dx.doi.org/10.4028/www.scientific.net/amr.314-316.863.

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This paper presents a novel hinge mechanism for deployment of spacecraft subsystems such as antennas, solar arrays. By using Axiomatic design theory, the conceptual design of the hinge mechanism is suggested, which has not only high deployed stiffness and low deployment shock but also does not require lubrication and accurate fabrication. That is, optimization of deployment torque and maximization of the deployed stiffness can be possible since this suggested hinge mechanism is decoupled design. And the suggested hinge mechanism is fabricated and tested to evaluate the feasibility. Quasi-stati

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Nikitin, A. G., A. V. Abramov, and V. V. Garyashin. "MATHEMATICAL MODEL OF CRANK-TYPE JOINT CLEARANCE OVERTRAVEL ASSESSMENT IN OSCILLATING CRANK DRIVE OF JAW CRUSHER." Izvestiya Visshikh Uchebnykh Zavedenii. Chernaya Metallurgiya = Izvestiya. Ferrous Metallurgy 61, no. 6 (2018): 466–69. http://dx.doi.org/10.17073/0368-0797-2018-6-466-469.

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The magnitude decrease of the dynamic loads that arise during the operation of machines in general and metallurgical ones in particular, is one of the main tasks of general problem of increasing their reliability and durability. The analysis of work of lever mechanisms of jaw crusher with internal degrees of freedom conditioned by presence of clearances in hinges, was made. It has shown that presence of unstable forces of locomotive masses inertia during work of oscillating crank drive results in breakage of pin surfaces in joint of piston-rod with a crank, and in subsequent change of working

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Huo, Zhanwei, Guangzhen Li, Luyang Tan, Tianwen Yang, Dapeng Tian, and Ji Li. "Optimal Design of High-Precision Focusing Mechanism Based on Flexible Hinge." Machines 12, no. 9 (2024): 627. http://dx.doi.org/10.3390/machines12090627.

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A high-precision focusing mechanism was designed using a flexible hinge to address the demand for precise focusing in space cameras. Firstly, a finite element model of the liner guideway was created using Hertz contact theory, and the accuracy of the model was confirmed using the “flip method”. Subsequently, the flexible hinge was optimized by a mix of topological and integrated optimization. The simulation results demonstrated that the improved flexible hinge successfully eliminates interference between the liner guideway and the screw, minimizes the effects of initial assembly mistakes, and

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Zhang, Rui, Haiyang Zhang, Lichao Xu, Peng Xie, Jing Wu, and Chao Wang. "Mechanism and Kinematics for Flapping Wing Micro Air Vehicles Maneuvering Based on Bilateral Wings." International Journal of Aerospace Engineering 2022 (February 2, 2022): 1–10. http://dx.doi.org/10.1155/2022/5759343.

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With the development and application of a bionic flapping micro aircraft vehicle (FMAV), further requirements for its high maneuvering flight characteristics have been put forward. A controlling tail cannot meet the requirements of the maneuvering flight of insect-sized FMAVs, and it has become necessary to find new mechanisms for high maneuvering flight. In this study, two flapping mechanisms with movable hinges based on a double crank rocker mechanism (DCRM) and a single crank slider mechanism (SCSM) are proposed. The instantaneous flapping angles, their extremum and means, and the flapping

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Yang, Lu, Jin Xing Chu, Yu Shu Deng, Xin Xu, and Kang Wei. "Analysis of a Micro-Displacement Amplification Mechanism Based on Piezoelectric Stack." Advanced Materials Research 940 (June 2014): 262–66. http://dx.doi.org/10.4028/www.scientific.net/amr.940.262.

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In this paper, a flexure hinge micro-displacement magnifying mechanism was designed, which was based on the principles of triangle amplification, and the amplifier was driven by piezoelectric stack. The displacement of piezoelectric stack was amplified by the flexure hinges micro-displacement magnifying mechanism. In order to test the static and dynamic carried on it. Not only the characteristics of good linearity, magnification, high positioning resolution and high frequency response achieved but also the design theory approved its correctness in the experiment.

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Meng, Qingkai, Yu Hu, Wei Wei, et al. "Aerodynamic Hinge Moment Characteristics of Pitch-Regulated Mechanism for Mars Rotorcraft: Investigation and Experiments." Drones 8, no. 7 (2024): 277. http://dx.doi.org/10.3390/drones8070277.

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The precise regulation of the hinge moment and pitch angle driven by the pitch-regulated mechanism is crucial for modulating thrust requirements and ensuring stable attitude control in Martian coaxial rotorcraft. Nonetheless, the aerodynamic hinge moment in rotorcraft presents time-dependent dynamic properties, posing significant challenges for accurate measurement and assessment for such characteristics. In this study, we delve into the detailed aerodynamic hinge moment characteristics associated with the pitch-regulated mechanism of Mars rotorcraft under a spectrum of control strategies. A r

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Solís-Santomé, Arturo, Guillermo Urriolagoitia-Sosa, Beatriz Romero-Ángeles, et al. "Conceptual design and finite element method validation of a new type of self-locking hinge for deployable CubeSat solar panels." Advances in Mechanical Engineering 11, no. 1 (2019): 168781401882311. http://dx.doi.org/10.1177/1687814018823116.

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Deployable mechanisms in CubeSat satellites have many problems with the system that provides the anchor position. The main defect of the traditional deployment mechanisms for solar panels in CubeSats is the lack of position system to block the back-driving of the panel when it reaches the final phase of the deployment. This generates spurious oscillations in the panel, affecting the photovoltaic process as well as generating fatigue in the mechanical elements of the mechanism (hinge or pin). In this work, the design, analysis and manufacture of a deployment mechanism for CubeSat solar panels i

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Karasahin, Ali Tahir. "Effect of Different Hinge Angles on Control Performance Metrics and Disturbance Rejection in Swashplateless Micro Aerial Robots." International Journal of Robotics and Control Systems 5, no. 1 (2024): 124–38. https://doi.org/10.31763/ijrcs.v5i1.1676.

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Micro Aerial Robots (MARs) have demonstrated outstanding performance in autonomous applications, making the performance of their controllers critical. The development of controllers for aerial robots using alternative designs rather than standard ones requires that their performance be investigated using different approaches prior to flight. Hence, this paper presents a 2-degree-of-freedom (DOF) test platform designed to evaluate both controller performance and the swashplateless mechanism that generates orientation and position changes. Recent studies have indicated a need to determine the re

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Jeong, Ju Won, Kum Cheol Shin, Kyung Won Kim, Jae Hyuk Lim, and Jung Ju Lee. "SMA Damped Tape Spring Hinge for Quasi-Static Deployment of a Satellite Solar Array." Applied Mechanics and Materials 705 (December 2014): 96–100. http://dx.doi.org/10.4028/www.scientific.net/amm.705.96.

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A tape spring hinge is one of the most typical deployment devices and is frequently used in miniaturized satellite due to its simplicity, lightweight, low cost and high deployment reliability. But a tape spring hinge mechanism has limited performance due to the performance trade-off between deployed stiffness and latch-up shock.In this study, to improve a conventional tape spring hinge mechanism, SMA damped tape spring hinge is proposed so that a satellite solar array can be quasi-statically deployed. The test result shows the feasibility of the proposed concept.

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Carlson, Sandra J. "The articulate brachiopod hinge mechanism: morphological and functional variation." Paleobiology 15, no. 4 (1989): 364–86. http://dx.doi.org/10.1017/s0094837300009568.

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Functional consequences of the variation in geometry and morphology of the articulate brachiopod hinge mechanism are poorly understood, despite the fact that hinge structures have considerable importance in brachiopod taxonomy. Jaanusson (1971) proposed that the ability to resorb shell material during growth, particularly in the hinge structures, can be used to distinguish two groups within the articulates, the deltidiodonts and the cyrtomatodonts. He considered the two groups to be morphologically distinct, “natural” phylogenetic groups, separated by a “functional discontinuity.” In order to

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Li, Zhen Bao, Li Fei Liu, Hai Teng Wang, and Wen Jing Wang. "Failure Mechanism of a Steel Frame under Oblique Seismic Action." Applied Mechanics and Materials 351-352 (August 2013): 438–41. http://dx.doi.org/10.4028/www.scientific.net/amm.351-352.438.

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Pushover anlysis of a three-story one-span space frame under oblique seismic action was conducted using ABAQUS software. The loading angle is 0°, 15°, 30° and 45° respectively. Failure mechanism of the space frame was analyzed, such as yield sequence of beam end and column end, and force-displacement curves. The results indicate that the structure loaded with angle of 0° failed when beam hinge appeared. With the increasing of load angle, the failure mechanism of frame changed from beam hinge failure to column hinge failure gradually.

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Wei, Huaxian, Li Wang, Xiaodong Niu, Jian Zhang, and Alessandro Simeone. "Fabrication, Experiments, and Analysis of an LBM Additive-Manufactured Flexure Parallel Mechanism." Micromachines 9, no. 11 (2018): 572. http://dx.doi.org/10.3390/mi9110572.

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Additive manufacturing technology has advantages for realizing complex monolithic structures, providing huge potential for developing advanced flexure mechanisms for precision manipulation. However, the characteristics of flexure hinges fabricated by laser beam melting (LBM) additive manufacturing (AM) are currently little known. In this paper, the fabrication and characterization of a flexure parallel mechanism through the LBM process are reported for the first time to demonstrate the development of this technique. The geometrical accuracy of the additive-manufactured flexure mechanism was ev

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Zhang, Lufan, Xueli Li, Jiwen Fang, and Zhili Long. "Multi-objective optimization of flexure hinge mechanism considering thermal–mechanical coupling deformation and natural frequency." Advances in Mechanical Engineering 9, no. 1 (2017): 168781401668791. http://dx.doi.org/10.1177/1687814016687910.

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Flexure hinge mechanism plays a key part in realization of terminal nano-positioning. The performance of flexure hinge mechanism is determined by its positioning design. Based on the actual working conditions, its finite element model is built and calculated in ANSYS. Moreover, change trends of deformation and natural frequency with positioning design parameters are revealed. And sensitivity analysis is performed for exploration response to these parameters. These parameters are used to build four objective functions. To solve it conveniently, the multi-objective optimization problem is transf

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Zhang, Shijun, Xiaowei Huang, Shuai Li, and Kefei Wang. "Design and analysis of folding mechanism for automotive seats based on space maximization." Vibroengineering Procedia 56 (October 18, 2024): 202–8. http://dx.doi.org/10.21595/vp.2024.24535.

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To solve the problem of maximizing space utilization of car folding seats within limited spatial constraints, a design method for space-maximizing four-bar folding seat hinges is proposed. First, we will investigate the existing types of car folding seats, identify the mainstream configurations, and determine the optimal position of the four-bar linkage hinge point based on the constraints present within the car using theoretical analysis methods. Secondly, kinematic and dynamic models of the four-bar linkage mechanism are established, followed by the formulation of kinematic and dynamic equat

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