Relevant bibliographies by topics / Locking free

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Locking free'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 February 2022

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Journal articles on the topic "Locking free"

1

Jung, Won, Kyung-Eun Lee, Sae-Ah Sun, and Bong-Jik Suh. "Opening Exercise Therapy with Locking-free Appliance(LA) : Preliminary Study." Journal of Oral Medicine and Pain 38, no. 1 (March 30, 2013): 29–34. http://dx.doi.org/10.14476/jomp.2013.38.1.029.

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Xiang-ming, Zhang, Wang An-wen, and He Han-lin. "Locking-free degenerated isoparametric shell element." Applied Mathematics and Mechanics 22, no. 5 (May 2001): 609–17. http://dx.doi.org/10.1007/bf02437752.

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Guoqing Yang, Guoqing Yang, Yunfei Xu) Yunfei Xu), Qiang Lin Qiang Lin, and Han Zhang Han Zhang. "Modulation-free laser frequency offset locking using buffer gas-induced resonance." Chinese Optics Letters 11, no. 10 (2013): 100201–3. http://dx.doi.org/10.3788/col201311.100201.

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Grindrod, Kelly, Jonathan Boersema, Khrystine Waked, Vivian Smith, Jilan Yang, and Catherine Gebotys. "Locking it down." Canadian Pharmacists Journal / Revue des Pharmaciens du Canada 150, no. 1 (December 6, 2016): 60–66. http://dx.doi.org/10.1177/1715163516680226.

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Objective: To explore the privacy and security of free medication applications (apps) available to Canadian consumers. Methods: The authors searched the Canadian iTunes store for iOS apps and the Canadian Google Play store for Android apps related to medication use and management. Using an Apple iPad Air 2 and a Google Nexus 7 tablet, 2 reviewers generated a list of apps that met the following inclusion criteria: free, available in English, intended for consumer use and related to medication management. Using a standard data collection form, 2 reviewers independently coded each app for the presence/absence of passwords, the storage of personal health information, a privacy statement, encryption, remote wipe and third-party sharing. A Cohen’s Kappa statistic was used to measure interrater agreement. Results: Of the 184 apps evaluated, 70.1% had no password protection or sign-in system. Personal information, including name, date of birth and gender, was requested by 41.8% (77/184) of apps. Contact information, such as address, phone number and email, was requested by 25% (46/184) of apps. Finally, personal health information, other than medication name, was requested by 89.1% (164/184) of apps. Only 34.2% (63/184) of apps had a privacy policy in place. Conclusion: Most free medication apps offer very limited authentication and privacy protocols. As a result, the onus currently falls on patients to input information in these apps selectively and to be aware of the potential privacy issues. Until more secure systems are built, health care practitioners cannot fully support patients wanting to use such apps.
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Chen, Lei, Gang Won Jang, Tae Jin Chung, and Tae Hyun Baek. "Application of P1-Nonconforming Element for Shell Structure of Incompressible Materiel." Advanced Engineering Forum 2-3 (December 2011): 1051–56. http://dx.doi.org/10.4028/www.scientific.net/aef.2-3.1051.

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This research focused on solving volumetric locking problem of shell structure of incompressible material. Degenerated solid-shell elements are widely applied on curved structure. But, volumetric locking will take place when the structure is made of incompressible material, such as rubber. Due to Poisson’s locking free property of P1-nonconforming element, it is employed to solve volumetric locking problem of shell structure. Furthermore, the study on shell structure is extended to topology optimization design. To verify the volumetric locking free of P1-nonconforming element on shell structure of incompressible material, some structures are studied by different elements. Comparing with the utilization of high order elements to solve volumetric locking problems, P1-nonconforming elements can save calculation time and reduce the numerical cost.
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Cho, J. Y., and S. N. Atluri. "Analysis of shear flexible beams, using the meshless local Petrov‐Galerkin method, based on a locking‐free formulation." Engineering Computations 18, no. 1/2 (February 1, 2001): 215–40. http://dx.doi.org/10.1108/02644400110365888.

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The problems of shear flexible beams are analyzed by the MLPG method based on a locking‐free weak formulation. In order for the weak formulation to be locking‐free, the numerical characteristics of the variational functional for a shear flexible beam, in the thin beam limit, are discussed. Based on these discussions a locking‐free local symmetric weak form is derived by changing the set of two dependent variables in governing equations from that of transverse displacement and total rotation to the set of transverse displacement and transverse shear strain. For the interpolation of the chosen set of dependent variables (i.e. transverse displacement and transverse shear strain) in the locking‐free local symmetric weak form, the recently proposed generalized moving least squares (GMLS) interpolation scheme is utilized, in order to introduce the derivative of the transverse displacement as an additional nodal degree of freedom, independent of the nodal transverse displacement. Through numerical examples, convergence tests are performed. To identify the locking‐free nature of the proposed method, problems of shear flexible beams in the thick beam limit and in the thin beam limit are analyzed, and the numerical results are compared with analytical solutions. The potential of using the truly meshless local Petrov‐Galerkin (MLPG) method is established as a new paradigm in totally locking‐free computational analyses of shear flexible plates and shells.
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Arnold, Douglas N., and Franco Brezzi. "Locking-free finite element methods for shells." Mathematics of Computation 66, no. 217 (January 1, 1997): 1–15. http://dx.doi.org/10.1090/s0025-5718-97-00785-0.

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Oyarzúa, Ricardo, and Ricardo Ruiz-Baier. "Locking-Free Finite Element Methods for Poroelasticity." SIAM Journal on Numerical Analysis 54, no. 5 (January 2016): 2951–73. http://dx.doi.org/10.1137/15m1050082.

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Duan, Huo-Yuan, and Guo-Ping Liang. "A locking-free Reissner-Mindlin quadrilateral element." Mathematics of Computation 73, no. 248 (November 24, 2003): 1655–72. http://dx.doi.org/10.1090/s0025-5718-03-01619-3.

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Vidal, Yolanda, Pierre Villon, and Antonio Huerta. "Locking in the incompressible limit: pseudo-divergence-free element free Galerkin." Revue Européenne des Éléments Finis 11, no. 7-8 (January 2002): 869–92. http://dx.doi.org/10.3166/reef.11.869-892.

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Dissertations / Theses on the topic "Locking free"

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Grieshaber, B. J. "Locking-free discontinuous Galerkin methods for problems in elasticity, using linear and multilinear approximations." Doctoral thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/4887.

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With interior penalty discontinuous Galerkin methods well established as locking-free for lowo-rder triangular elements, and thus an effective alternative to the Standard Galerkin method for nearly incompressible materials, substantial numerical evidence in this work shows that this is not the case for quadrilateral elements. Direct comparisons to triangles illustrate the material dependence of three common interior penalty methods for bilinear quadrilaterals, with locking and other manifestations of poor approximations in the near-incompressible regime. To understand this discrepancy with a view to providing a remedy for the problem, an existing convergence analysis for triangles is looked at for possible extension to the case of quadrilaterals. This highlights the need for a suitable interpolant for the error-splitting approach of the proof. To rectify the problem manifesting in the numerical results, a modification to the formulation or elements themselves is necessary, and a preliminary analysis with bilinear elements, assuming the existence of a suitable interpolant with some basic properties, indicates two modifications as potential remedies: edge-term under-integration, and the use of linear rather than multilinear elements.
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Fernàndez, Méndez Sònia. ""Mesh-free methods and finite elements: friend or foe?"." Doctoral thesis, Universitat Politècnica de Catalunya, 2001. http://hdl.handle.net/10803/6705.

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This thesis is devoted to the numerical analysis of mesh-free methods and, in particular, to the study of the possible advantages of the EFG (Element Free Galerkin) mesh-free method against the well-known FE (Finite Element) method. More precisely, the EFG method and the FE method behavior are compared in two particular interesting problems: (1) analysis of volumetric locking in mechanical problems and (2) accurate resolution of transient convection dominated problems. In both cases the good properties and possibilities of mesh-free methods become apparent.
However, in several situations the FE method is still more competitive: for instance, the computation of the FE shape functions and its integrals are less costly, and essential boundary conditions can be easily imposed. Thus, in order to take advantage of the good properties of both methods, a mixed interpolation combining FE and EFG is proposed. This formulation can be applied in two useful situations: (i) enrichment of finite elements with EFG, and (ii) coupling of FE and EFG. An a priori error estimate for the first one is presented and proved. Several examples show the applicability of the mixed interpolation in adaptive computations.
Aquesta tesi està dedicada a l'anàlisi numèrica dels mètodes sense malla i, en particular, a l'estudi dels possibles avantatges del mètode EFG (Element Free Galerkin) davant del ben conegut MEF (Mètode dels Elements Finits). Concretament, es comparen el mètode EFG i el MEF en dos problemes concrets d'interès: (1) l'anàlisi del bloqueig volumètric en problemes mecànics i (2) la resolució precisa de problemes transitoris amb convecció dominant. Les bones propietats i possibilitats dels mètodes sense malla es fan evidents en tots dos casos.
Tot i així, en varis aspectes el MEF resulta més competitiu: per exemple, el càlcul de les funcions de forma i de les seves integrals es menys costós, i les condicions de contorn essencials es poden imposar fàcilment. Amb l'objectiu d'aprofitar les bones qualitats dels dos mètodes, es proposa una interpolació mixta combinant elements finits y EFG, aplicable en dues situacions: (i) enriquiment d'elements finits amb EFG i (ii) acoblament d'elements finits i EFG. Per al primer cas, es presenta i demostra una cota a priori de l'error. L'aplicabilitat d'aquesta interpolació mixta en processos adaptatius es mostra amb varis exemples.
Esta tesis está dedicada al análisis numérico de los métodos sin malla y, en particular, al estudio de las posibles ventajas del método EFG (Element Free Galerkin) frente al bien conocido MEF (Método de los Elementos Finitos). Concretamente, se comparan el método EFG y el MEF en dos problemas concretos de interés: (1) el análisis del bloqueo volumétrico en problemas mecánicos y (2) la resolución precisa de problemas transitorios con convección dominante. Las buenas propiedades y posibilidades de los métodos sin malla se hacen evidentes en ambos casos.
Sin embargo, en varios aspectos el MEF resulta más competitivo: por ejemplo, el cálculo de las funciones de forma y sus integrales es menos costoso, y las condiciones de contorno esenciales se pueden imponer fácilmente. Con el objetivo de aprovechar las buenas cualidades de ambos métodos, se propone una interpolación mixta combinando elementos finitos y EFG, aplicable en dos situaciones: (i) enriquecimiento de elementos finitos con EFG, y (ii) acoplamiento de elementos finitos y EFG. Para el primer caso, se presenta y demuestra una cota a priori del error. La aplicabilidad de esta interpolación mixta en procesos adaptativos se muestra con varios ejemplos.
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Richardson, Kyle Dennis. "Blending and Mixed Variational Principles to Overcome Locking Phenomena in Isogeometric Beams." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6495.

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Two methods for overcoming locking phenomena in isogeometric beams are presented. The first method blends the rotation of a Timoshenko beam with the rotation of a Bernoulli beam to produce realistic displacements in straight beams. The second method uses mixed variational principles, specifically the Hu-Washizu Principle, to produce realistic displacements as well as realistic strains without post-processing.
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Velte, Ulrich [Verfasser]. "Orbit simulations and optical phase locking techniques for an atom interferometric test of the universality of free fall / Ulrich Velte." Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2018. http://d-nb.info/1171466757/34.

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Vidal, Seguí Yolanda. "Mesh-Free Methods for Dynamic Problems. Incompressibility and Large Strain." Doctoral thesis, Universitat Politècnica de Catalunya, 2005. http://hdl.handle.net/10803/6709.

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This thesis makes two noteworthy contributions in the are of mesh-free methods: a Pseudo-Divergence-Free (PDF) Element Free Galerkin (EFG) method which alleviates the volumetric locking and a Stabilized Updated Lagrangian formulation which allows to solve fast-transient dynamic problems involving large distortions. The thesis is organized in the following way.
First of all, this thesis dedicates one chapter to the state of the art of mesh-free methods. The main reason is because there are many mesh-free methods that can be found in the literature which can be based on different ideas and with different properties. There is a real need of classifying, ordering and comparing these methods: in fact, the same or almost the same method can be found with different names in the literature.
Secondly, a novel improved formulation of the (EFG) method is proposed in order to alleviate volumetric locking. It is based on a pseudo-divergence-free interpolation. Using the concept of diffuse derivatives an a convergence theorem of these derivatives to the ones of the exact solution, the new approximation proposed is obtained imposing a zero diffuse divergence. In this way is guaranteed that the method verifies asymptotically the incompressibility condition and in addition the imposition can be done a priori. This means that the main difference between standard EFG and the improved method is how is chosen the interpolation basis. Modal analysis and numerical results for two classical benchmark tests in solids corroborate that, as expected, diffuse derivatives converge to the derivatives of the exact solution when the discretization is refined (for a fixed dilation parameter) and, of course, that diffuse divergence converges to the exact divergence with the expected theoretical rate. For standard EFG the typical convergence rate is degrade as the incompressible limit is approached but with the improved method good results are obtained even for a nearly incompressible case and a moderately fine discretization. The improved method has also been used to solve the Stokes equations. In this case the LBB condition is not explicitly satisfied because the pseudo-divergence-free approximation is employed. Reasonable results are obtained in spite of the equal order interpolation for velocity and pressure.
Finally, several techniques have been developed in the past to solve the well known tensile instability in the SPH (Smooth Particle Hydrodynamics) mesh-free method. It has been proved that a Lagrangian formulation removes completely the instability (but zero energy modes exist). In fact, Lagrangian SPH works even better than the Finite Element Method in problems involving distortions. Nevertheless, in problems with very large distortions a Lagrangian formulation will need of frequent updates of the reference configuration. When such updates are incorporated then zero energy modes are more likely to be activated. When few updates are carried out the error is small but when updates are performed frequently the solution is completely spoilt because of the zero energy modes. In this thesis an updated Lagrangian formulation is developed. It allows to carry out updates of the reference configuration without suffering the appearance of spurious modes. To update the Lagrangian formulation an incremental approach is used: an intermediate configuration will be the new reference configuration for the next time steps. It has been observed that this updated formulation suffers from similar numerical fracture to the Eulerian case. A modal analysis has proven that there exist zero energy modes. In the paper the updated Lagrangian method is exposed in detail, a stability analysis is performed and finally a stabilization technique is incorporated to preclude spurious modes.
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Pignet, Nicolas. "Méthodes hybrides d’ordre élevé pour la mécanique des solides non-linéaire." Thesis, Paris Est, 2019. http://www.theses.fr/2019PESC1043.

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Dans cette thèse, nous nous intéressons aux développements des méthodes hybrides d'ordre élevé (Hybrid High-Order, HHO, en anglais) pour la mécanique des solides non-linéaire. Les méthodes HHO sont formulées en termes d'inconnues de face portées par le squelette du maillage et d'inconnues dans les cellules qui sont ajoutées pour des raisons d'approximation et de stabilité de la méthode. Ces méthodes présentent de nombreux avantages dans le cadre de la mécanique des solides~: textit{(i)} formulation primale ; textit{(ii)} suppression du verrouillage numérique dû aux problèmes d'incompressibilité ; textit{(iii)} ordre d'approximation arbitraire (symbole dollar) kgeq1(symbole dollar) ; textit{(iv)} utilisation de maillages polyédriques avec des interfaces possiblement non-conformes ; et textit{(v)} coûts numériques attractifs grâce à la condensation statique qui permet d'éliminer les inconnues portées par les cellules tout en maintenant un stencil compact. Dans cette thèse, des méthodes HHO en version primale sont développées pour résoudre le problème des grandes déformations hyperélastiques et des petites déformations plastiques. Une extension aux grandes déformations plastiques est ensuite présentée en utilisant le cadre des déformations logarithmiques. Enfin, un couplage avec une approche de type Nitsche a permis de traiter le problème du contact unilatéral de Signorini avec frottement de Tresca. Des taux de convergence optimaux en (symbole dollar) h^{k+1}(symbole dollar) ont été prouvés en norme d'énergie. %, ainsi que la robustesse à la limite incompressible. L'ensemble de ces méthodes ont été implémentées à la fois dans la librairie open-source DiSk++ et dans le code de calcul industriel open-source code_aster. De nombreux cas-tests bi- et tridimensionnels ont été réalisés afin de valider ces méthodes et de les comparer par rapport aux méthodes éléments finis (symbole dollar) H^1(symbole dollar)-conformes et mixtes
In this thesis, we are interested in the devising of Hybrid High-Order (HHO) methods for nonlinear solid mechanics. HHO methods are formulated in terms of face unknowns on the mesh skeleton. Cell unknowns are also introduced for the stability and approximation properties of the method. HHO methods offer several advantages in solid mechanics: textit{(i)} primal formulation; textit{(ii)} free of volumetric locking due to incompressibility constraints; textit{(iii)} arbitrary approximation order (dollar symbol) kgeq1(dollar symbol) ; textit{(iv)} support of polyhedral meshes with possibly non-matching interfaces; and textit{(v)} attractive computational costs due to the static condensation to eliminate locally cell unknowns while keeping a compact stencil. In this thesis, primal HHO methods are devised to solve the problem of finite hyperelastic deformations and small plastic deformations. An extension to finite elastoplastic deformations is also presented within a logarithmic strain framework. Finally, a combination with Nitsche's approach allows us to impose weakly the unilateral contact and Tresca friction conditions. Optimal convergence rates of order (dollar symbol) h^{k+1}(dollar symbol) are proved in the energy-norm. All these methods have been implemented in both the open-source library DiSk++ and the open-source industrial software code_aster. Various two- and three-dimensional benchmarks are considered to validate these methods and compare them with (dollar symbol) H^1(dollar symbol)-conforming and mixed finite element methods
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Dietzsch, Julian. "Implementierung gemischter Finite-Element-Formulierungen für polykonvexe Verzerrungsenergiefunktionen elastischer Kontinua." Master's thesis, Universitätsbibliothek Chemnitz, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-217381.

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In der vorliegenden Arbeit wird ein gemischtes Element gegen Locking-Effekte untersucht. Dazu wird ein Fünf-Feld-Hu-Washizu-Funktional (CoFEM-Element) für lineare und quadratische Hexaeder-Elemente unter einer hyperelastischen, isotropen, polykonvexen sowie einer transversal-isotropen Materialformulierung implementiert. Die resultierenden nichtlinearen Gleichungen werden mithilfe eines Mehrebenen-NEWTON-RAPHSON-Verfahren unter Beachtung einer konsistenten Linearisierung gelöst. Als repräsentatives Beispiel der numerischen Untersuchungen dient der einseitig eingespannte Cook-Balken mit einer quadratischen Druckverteilung am Rand. Zur Beurteilung des CoFEM-Elements wird das räumliche Konvergenzverhalten für unterschiedliche Polynomgrade und für verschiedene Netze unter Beachtung der algorithmischen Effizienz untersucht
This paper presents a mixed finite element formulation of Hu-Washizu type (CoFEM) designed to reduce locking effects with respect to a linear and quadratic approximation in space. We consider a hyperelastic, isotropic, polyconvex material formulation as well as transverse isotropy. The resulting nonlinear algebraic equations are solved with a multilevel NEWTON-RAPHSON method. As a numerical example serves a cook-like cantilever beam with a quadratic distribution of in-plane load on the Neumann boundary. We analyze the spatial convergence with respect to the polynomial degree of the underlying Lagrange polynomials and with respect to the level of mesh refinement in terms of algorithmic efficiency
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Öz, Pinar Verfasser], Fred [Akademischer Betreuer] Wolf, and Tobias [Akademischer Betreuer] [Moser. "Theoretical analysis of membrane properties underlying action potential phase-locking in noise-driven cells / Pinar Öz. Gutachter: Fred Wolf ; Tobias Moser. Betreuer: Fred Wolf." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2011. http://d-nb.info/1042305080/34.

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Juang, Jr-Yuan, and 莊志遠. "Stable Q-switched mode-locking of free running and gain modulation Nd:GdVO4 lasers." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/05724983981210939809.

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碩士
東海大學
物理學系
97
In this thesis, stable Q-switched mode locking (QML) in free running and gain modulation Nd:GdVO4 lasers with a semiconductor saturable absorber output coupler (SESAOC) is investigated. For free-running case, stable QML take place in a region where the overlap (hysteresis) of operating states occurs when the pump power is changed. In this case, the maximum peak power of QML is 5 times of that measured for continuous wave mode locking (CWML). By operating the free running laser at CWML state and applying gain modulation at a rate around relaxation oscillation frequency, stable QML can also be realized with pulse width of 22ps and peak power of 406W corresponding to increases of 1.22 and 6 times of that measured for CWML.
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Lin, Chun-Ju, and 林俊儒. "Self-Triggered Harmonic Mode-Locking WRC-FPLD Based Synthesizer-Free 10 Gbit/s RZ Data Transmission System." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/14226687783867834812.

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碩士
國立臺灣大學
光電工程學研究所
99
A self-triggered harmonic mode-locked weak-resonant-cavity Fabry-Perot laser diode is employed as the 10 Gbit/s RZ data generator. Derived from the rate equation, the pulsewidth formula in actively mode-locking theory is modified and illuminates the shortening of the pulse as a function of optical feedback ratio and microwave power gain. The pulsewidth is narrower with higher optical injection and microwave gain due to the gain saturation of the laser diode and the increase of the modulation depth. The timing jitter, pulsewidth of the pulse train and phase noise of the microwave signal under different biased current, optical injection and microwave gain are measured. The optimized jitter and pulsewidth are 0.9 ps and 20 ps, respectively. With higher microwave gain, the SNR and ER are improved to 10.2 dB and 13.8 dB due to the enhancement of the peak power and elimination of the residual carrier. At the optimized operation condition, the receiving sensitivity of -18.5 dBm and -16.5 dBm before and after channelization, respectively, are obtained with 10 Gbit/s RZ-OOK data. To further enhance the cavity Q-value, 100-m single mode fiber is added in the OEO loop. The minimal single sided-band phase noise of -70 dBc/Hz at 100Hz offset is measured while significant degradation is observed with cavity length longer than 200 m. The optimized pulse train exhibits timing jitter of 0.67 ps and pulsewidth of 18.5 ps with 100-m single mode fiber. Chirping, mode-partition noise, spurious signal and environmental fluctuation are enlarged with longer loop length and these factors oppose the expected improvement induced by longer cavity and the resultant higher Q-value. The optimized RZ pulsed carrier modulated by MZM with 10 Gbit/s RZ-OOK data shows high SNR of 11 dB and lower receiving sensitivity of -19.2 dBm than the system with original cavity length. With 200-GHZ spacing AWG, the channelization is performed and the power penalty of only 2.5 dB can be attributed to the narrow linewidth of 0.77 nm since most signal on the carrier can transmit through the passband of the AWG. To suppress the spurious signal, the dual OEO loop structure is employed. A theoretical analysis based on the relationship between closed-loop intensity transfer function, power ratio between two loops and the cavity lengths is derived for exploring the optimized principle of dual-loop OEO structure. The dual-loop scheme in the proposed system is realized with different cavity length and the optimized condition is 100-m, 120-m loop length with equal power. The spurious signal in the system with longer cavity is vanished with the use of dual-loop structure. The phase noise is about -100 dBc/Hz at 10-kHz and the RMS timing jitter and pulsewidth are 0.67 ps and 18.3 ps, respectively. These parameters have no obvious change compared with single loop case except the elimination of the spurious signal. The SNR slightly decays to 10.9 dB and the receiving power at BER of 10-9 is -19.2 dBm in the optimized condition with 10 Gbit/s RZ-OOK data from PRBS source triggered by the OEO microwave signal.
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Book chapters on the topic "Locking free"

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Liang, Y., and B. Izzuddin. "An optimisation approach towards locking-free isotropic shell elements." In Insights and Innovations in Structural Engineering, Mechanics and Computation, 491–97. Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742: CRC Press, 2016. http://dx.doi.org/10.1201/9781315641645-82.

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Pechstein, Astrid S., Martin Meindlhumer, Alexander Humer, and Michael Krommer. "Locking Free High-Order Mixed Elements for Ferroelectric Polarization." In Advanced Structured Materials, 173–86. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-79325-8_15.

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Chapelle, Dominique, and Rolf Stenberg. "Locking-free mixed stabilized finite element methods for bending-dominated shells." In Plates and Shells, 81–94. Providence, Rhode Island: American Mathematical Society, 1999. http://dx.doi.org/10.1090/crmp/021/06.

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Kikuchi, F., and K. Ishii. "A Locking-free Mixed Triangular Element for the Reissner-Mindlin Plates." In Computational Mechanics ’95, 1608–13. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-79654-8_261.

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Dasgupta, Gautam. "Incompressible Plane Strain Elements: Locking-Free in the x and y Directions." In Finite Element Concepts, 147–73. New York, NY: Springer New York, 2017. http://dx.doi.org/10.1007/978-1-4939-7423-8_8.

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Dasgupta, Gautam. "Four-Node “Locking-Free” Elements: Capturing Analytical Stresses in Pure Bending: For Two Orthogonal Directions." In Finite Element Concepts, 131–46. New York, NY: Springer New York, 2017. http://dx.doi.org/10.1007/978-1-4939-7423-8_7.

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Singh, Radhika, K. K. Abdul Majeed, and Umakanta Nanda. "Transmission Gate Based PFD Free of Glitches for Fast Locking PLL with Reduced Reference Spur." In Communications in Computer and Information Science, 404–14. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5048-2_32.

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Chen, Jingxu, Yongchang Cai, and Pengfei Yan. "A New Locking-Free Thick/Thin Shell Element with Incompatible Approximation in a General Orthogonal Curvilinear Coordinate System." In Computational and Experimental Simulations in Engineering, 95–116. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-64690-5_10.

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Kögl, M., and M. L. Bucalem. "Locking-free piezoelectric MITC shell elements." In Computational Fluid and Solid Mechanics 2003, 392–95. Elsevier, 2003. http://dx.doi.org/10.1016/b978-008044046-0.50096-8.

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KOGL, M., and M. BUCALEM. "Locking-free piezoelectric MITC shell elements." In Computational Fluid and Solid Mechanics 2003, 392–95. Elsevier, 2003. http://dx.doi.org/10.1016/b978-008044046-0/50096-8.

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Conference papers on the topic "Locking free"

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CHOW, WENG, QUENTIND APPERT, ALBERT SAXMAN, BRIAN MCVEY, and STEVEN BENDER. "Frequency locking in coupled free electron lasers." In 19th AIAA, Fluid Dynamics, Plasma Dynamics, and Lasers Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1987. http://dx.doi.org/10.2514/6.1987-1281.

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Pereira, Weslley, and Frédéric Valentin. "A Locking-Free MHM Method for Elasticity." In CNMAC 2016 - XXXVI Congresso Nacional de Matemática Aplicada e Computacional. SBMAC, 2017. http://dx.doi.org/10.5540/03.2017.005.01.0336.

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Faria, Cristiane O., Antônio J. B. Santos, and Abimael F. D. Loula. "LOCKING-FREE HYBRIDIZED FEM FOR INCOMPRESSIBLE LINEAR ELASTICITY PROBLEM." In XXXVI Iberian Latin American Congress on Computational Methods in Engineering. Rio de Janeiro, Brazil: ABMEC Brazilian Association of Computational Methods in Engineering, 2015. http://dx.doi.org/10.20906/cps/cilamce2015-0497.

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Arzi, Khaled, Gregor Keller, Andreas Rennings, Daniel Erni, Franz-Josef Tegude, and Werner Prost. "Frequency locking of a free running resonant tunneling diode oscillator by wire-less sub-harmonic injection locking." In 2017 10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies (UCMMT). IEEE, 2017. http://dx.doi.org/10.1109/ucmmt.2017.8068485.

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Kjøller, N. K., K. M. Røge, P. Guan, H. C. H. Mulvad, M. Galili, and L. K. Oxenløwe. "A Novel Phase-Locking-Free Phase Sensitive Amplifier based Regenerator." In Optical Fiber Communication Conference. Washington, D.C.: OSA, 2015. http://dx.doi.org/10.1364/ofc.2015.w4c.2.

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Fan, W., and W. D. Zhu. "A New Locking-Free Formulation of a Three-Dimensional Shear-Deformable Beam." In ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/detc2017-67598.

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Abstract:
A new locking-free formulation of a three-dimensional shear-deformable beam with large deformations and large rotations is developed. The position of the centroid line of the beam is integrated from its slope that is related to the rotation of a corresponding cross-section and stretch and shear strains. The rotation is parametrized by a rotation vector, which has a clear and intuitive physical meaning. Taylor polynomials are used for certain terms that have zero denominators to avoid singularity in numerical implementation. Governing equations of the beam are obtained using Lagrange’s equations for systems with constraints, and several benchmark problems are simulated to show the performance of the current formulation. Results show that the current formulation do not suffer from shear and Poisson locking problems that the absolute nodal coordinate formulation can have. Results from the current formulation for a planar static case are compared with its exact solutions, and they are in excellent agreement with each other, which verifies accuracy of the current formulation. Results from the current formulation are compared with those from commercial software ABAQUS and RecurDyn, and they are in good agreement with each other; the current formulation uses much fewer numbers of elements to yield converged results.
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Hall, David, and Marin Pichler. "Simple Diode Laser Frequency Locking Based on Doppler-Free Magnetically Induced Dichroism." In Frontiers in Optics. Washington, D.C.: OSA, 2010. http://dx.doi.org/10.1364/fio.2010.jtua65.

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Merrill, Paul, Thomas Austin, Jenil Thakker, Younghee Park, and Justin Rietz. "Lock and Load: A Model for Free Blockchain Transactions through Token Locking." In 2019 IEEE International Conference on Decentralized Applications and Infrastructures (DAPPCON). IEEE, 2019. http://dx.doi.org/10.1109/dappcon.2019.00013.

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Asaduzzaman, Abu, Mark P. Allen, and Tania Jareen. "An effective locking-free caching technique for power-aware multicore computing systems." In 2014 International Conference on Informatics, Electronics & Vision (ICIEV). IEEE, 2014. http://dx.doi.org/10.1109/iciev.2014.6850861.

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Liu, Yun, Hua-Kuang Liu, and Yehuda Y. Braiman. "Injection locking of broad-area semiconductor lasers for free-space laser communication." In International Symposium on Optical Science and Technology, edited by Jennifer C. Ricklin and David G. Voelz. SPIE, 2002. http://dx.doi.org/10.1117/12.450938.

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Reports on the topic "Locking free"

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McDermott, John, and Sushil Jajodia. Orange Locking: Channel-Free Database Concurrency Control via Locking. Fort Belvoir, VA: Defense Technical Information Center, January 1992. http://dx.doi.org/10.21236/ada465539.

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Kur, E., D. J. Dunning, B. W. J. McNeil, J. Wurtele, and A. A. Zholents. A wide bandwidth free-electron laser with mode locking using current modulation. Office of Scientific and Technical Information (OSTI), January 2011. http://dx.doi.org/10.2172/1015951.

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