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Articles de revues sur le sujet « Component mode syntheys »

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Auteur : Grafiati

Publié le 10 mars 2023

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1

Castanier, Matthew P., Yung-Chang Tan et Christophe Pierre. « Characteristic Constraint Modes for Component Mode Synthesis ». AIAA Journal 39, n^o 6 (juin 2001) : 1182–87. http://dx.doi.org/10.2514/2.1433.

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2

Apiwattanalunggarn, Polarit, Steven W. Shaw et Christophe Pierre. « Component Mode Synthesis Using Nonlinear Normal Modes ». Nonlinear Dynamics 41, n^o 1-3 (août 2005) : 17–46. http://dx.doi.org/10.1007/s11071-005-2791-2.

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3

Castanier, Matthew P., Yung-Chang Tan et Christophe Pierre. « Characteristic constraint modes for component mode synthesis ». AIAA Journal 39 (janvier 2001) : 1182–87. http://dx.doi.org/10.2514/3.14854.

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4

Karpel, M., B. Moulin et V. Feldgun. « Component Mode Synthesis of a Vehicle System Model Using the Fictitious Mass Method ». Journal of Vibration and Acoustics 129, n^o 1 (8 janvier 2006) : 73–83. http://dx.doi.org/10.1115/1.2202156.

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A new procedure for dynamic analysis of complex structures, based on the fictitious-mass component mode synthesis method, is presented. Normal modes of separate components are calculated by finite-element analysis with the interface coordinates loaded with fictitious masses that generate local boundary deformations in the low-frequency modes. The original fictitious-mass method is extended to include three types of component interconnections: displacement constraints, connection elements, and structural links. The connection elements allow the introduction of springs and dampers between the interface points without adding structural degrees of freedom. The structural links facilitate the inclusion the discrete finite-element representation of typically small components in the coupling equations. This allows a convenient treatment of loose elements and the introduction of nonlinear effects and parametric studies in subsequent analyses. The new procedure is demonstrated with the structural model of a typical vehicle with four major substructures and a relatively large number of interface coordinates. High accuracy is obtained in calculating the natural frequencies and modes of the assembled structure and the separate components with the fictitious masses removed. Dynamic response analysis of the vehicle travelling over a rough road, performed by modal coupling, is in excellent agreement with that performed for the full model.

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5

Spanos, P. D., et A. Majed. « A Residual Flexibility Approach for Decoupled Analysis of Systems of Combined Components ». Journal of Vibration and Acoustics 118, n^o 4 (1 octobre 1996) : 682–86. http://dx.doi.org/10.1115/1.2888352.

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A residual flexibility approach for the analysis of systems involving multiple components subjected to dynamic loading is presented. The reactive forces at the junctions of the components are computed directly without synthesis of component modes or determination of system modes. This is accomplished by expressing the displacements at the junction coordinates of the components in terms of the retained component modes and a first-order account of the residual flexibility of the unretained modes. Once the components are represented in this manner, the requirements of displacement compatibility and force equilibrium at the junction coordinates are enforced. This leads to a set of junction-sized simultaneous algebraic equations for the unknown forces, similar in form to that of the flexibility formulation in statics; this is done by invoking the Newmark integration algorithm. The computed reactive forces at a given time point are used to integrate the equations of motion of the individual components separately for that time point, hence the terminology decoupled analysis. The new method compares well with traditional Component-Mode Synthesis approach for a nonclassically damped fixed-fixed beam consisting of two classically damped cantilevered beam components.

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6

FUNAMOTO, Kenichi, et Masayoshi MISAWA. « Component Mode Synthesis Using Component Test Results ». Proceedings of the JSME annual meeting 2002.1 (2002) : 297–98. http://dx.doi.org/10.1299/jsmemecjo.2002.1.0_297.

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7

YASUI, Yoshitsugu, et Tetsuo YASAKA. « Improvement component mode synthesis by using orthogonalized attached modes. » Transactions of the Japan Society of Mechanical Engineers Series C 55, n^o 511 (1989) : 517–24. http://dx.doi.org/10.1299/kikaic.55.517.

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8

Papadimitriou, Costas, et Dimitra-Christina Papadioti. « Component mode synthesis techniques for finite element model updating ». Computers & ; Structures 126 (septembre 2013) : 15–28. http://dx.doi.org/10.1016/j.compstruc.2012.10.018.

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9

Seshu, P. « Substructuring and Component Mode Synthesis ». Shock and Vibration 4, n^o 3 (1997) : 199–210. http://dx.doi.org/10.1155/1997/147513.

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Substructuring and component mode synthesis (CMS), is a very popular method of model reduction for large structural dynamics problems. Starting from the pioneering works on this technique in the early 1960s, many researchers have studied and used this technique in a variety of applications. Besides model reduction, CMS offers several other crucial advantages. The present work aims to provide a review of the available literature on this important technique.

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10

Greif, R. « Substructuring and Component Mode Synthesis ». Shock and Vibration Digest 18, n^o 7 (1 juillet 1986) : 3–8. http://dx.doi.org/10.1177/058310248601800703.

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11

Sung, Shung H., et Donald J. Nefske. « Component mode synthesis of a vehicle structural-acoustic system model ». AIAA Journal 24, n^o 6 (juin 1986) : 1021–26. http://dx.doi.org/10.2514/3.9379.

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12

Craig, Roy R., et Zhenhau Ni. « Component mode synthesis for model order reduction of nonclassicallydamped systems ». Journal of Guidance, Control, and Dynamics 12, n^o 4 (juillet 1989) : 577–84. http://dx.doi.org/10.2514/3.20446.

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13

Crandall, S. H., et N. A. Yeh. « Automatic Generation of Component Modes for Rotordynamic Substructures ». Journal of Vibration and Acoustics 111, n^o 1 (1 janvier 1989) : 6–10. http://dx.doi.org/10.1115/1.3269825.

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Dynamic analysis models are customarily employed in turbomachinery design to predict critical whirling speeds and estimate dynamic response due to loads imposed by unbalance, misalignment, maneuvers, etc., Traditionally these models have been assembled from beam elements and been analyzed by transfer matrix methods. Recently there has been an upsurge of interest in the development of improved dynamic models making use of finite element analysis and/or component mode synthesis. We are currently developing a procedure for modelling and analyzing multi-rotor systems [1] which employs component mode synthesis applied to rotor and stator substructures. A novel feature of our procedure is a program for the automatic generation of the component modes for substructures modelled as Timoshenko beam elements connected to other substructures by bearings, couplings, and localized structural joints. The component modes for such substructures consist of constraint modes and internal modes. The former are static deflection shapes resulting from removing the constraints one at a time and imposing unit deflections at the constraint locations. The latter have traditionally been taken to be a subset of the natural modes of free vibration of the substructure with all constraints imposed. It has however been pointed out [2] that any independent set of geometrically admissible modes may be used. We take advantage of this and employ static deflections under systematically selected loading patterns as internal modes. All component modes are thus obtained as static deflections of a simplified beam model which has the same span and same constraints as the actual substructure but which has piecewise uniform dynamic properties. With the loading patterns we employ, all modes are represented by fourth order polynomials with piecewise constant coefficients. We have developed an algorithm for the automatic calculation of these coefficients based on exact integration of the Timoshenko beam equation using singularity functions. The procedure is illustrated by applying it to a simplified system with a single rotor structure and a single stator structure. The accuracy of the procedure is examined by comparing its results with an exact analytical solution and with a component mode synthesis using true eigenfunctions as internal modes.

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14

Eguchi, Takehiko. « Improvement of component mode synthesis model for vibration analysis of hard disk drives using attachment modes ». Microsystem Technologies 13, n^o 8-10 (23 novembre 2006) : 1085–92. http://dx.doi.org/10.1007/s00542-006-0313-x.

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15

Kim, Soo Min, Jin-Gyun Kim, Soo-Won Chae et K. C. Park. « Evaluating Mode Selection Methods for Component Mode Synthesis ». AIAA Journal 54, n^o 9 (septembre 2016) : 2852–63. http://dx.doi.org/10.2514/1.j054936.

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16

Voormeeren, S. N., P. L. C. van der Valk et D. J. Rixen. « A general mixed boundary model reduction method for component mode synthesis ». IOP Conference Series : Materials Science and Engineering 10 (1 juin 2010) : 012116. http://dx.doi.org/10.1088/1757-899x/10/1/012116.

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17

Koutsovasilis, P., et M. Beitelschmidt. « Model order reduction of finite element models : improved component mode synthesis ». Mathematical and Computer Modelling of Dynamical Systems 16, n^o 1 (25 mars 2010) : 57–73. http://dx.doi.org/10.1080/13873951003590214.

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18

Zhang, J. H., et H. G. Natke. « A two-level updating procedure of the component-mode synthesis model ». Mechanical Systems and Signal Processing 5, n^o 6 (novembre 1991) : 501–14. http://dx.doi.org/10.1016/0888-3270(91)90049-b.

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19

Kubomura, Kenji. « Component mode synthesis for damped structures ». AIAA Journal 25, n^o 5 (mai 1987) : 740–45. http://dx.doi.org/10.2514/3.9691.

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20

Engels, Remi C. « Convergence improvement for component mode synthesis ». AIAA Journal 30, n^o 2 (février 1992) : 490–95. http://dx.doi.org/10.2514/3.10943.

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21

Koutsovasilis, Panagiotis. « Improved component mode synthesis and variants ». Multibody System Dynamics 29, n^o 4 (1 août 2012) : 343–59. http://dx.doi.org/10.1007/s11044-012-9327-6.

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22

Suarez, L. E., et M. P. Singh. « An exact component mode synthesis approach ». Earthquake Engineering & ; Structural Dynamics 16, n^o 2 (février 1988) : 293–310. http://dx.doi.org/10.1002/eqe.4290160210.

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23

Vizzini, Simone, Magnus Olsson et Alessandro Scattina. « Component mode synthesis methods for a body-in-white noise and vibration analysis ». Proceedings of the Institution of Mechanical Engineers, Part D : Journal of Automobile Engineering 231, n^o 2 (5 août 2016) : 279–88. http://dx.doi.org/10.1177/0954407016656542.

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In this work the dynamic substructuring approach was applied to a noise, vibration and harshness problem within the automotive engineering field. In particular, a noise, vibration and harshness analysis was carried out on the body-in-white structure of a passenger car. The work focuses on the theory of component mode synthesis. Two component mode synthesis reduction methods, namely the Craig–Bampton method and the Craig–Chang method, were applied to the body-in-white structure of the Volvo V40. The influences of various parameters were investigated. In particular, the effect of the reduction basis on the response accuracy and on the reduction time was studied. Moreover, the effects of the connection properties between different parts of the model were examined. The simulation times of the reduced models and of the full finite element model were compared. The results showed that the Craig–Chang method performs better when the modes are retained for up to one and a half times the maximum frequency response studied. Additionally, the Craig–Chang method gives a very accurate representation of the system dynamics even when connections with a low stiffness are used. Finally, it is possible to reduce the simulation time by up to 90% if component mode synthesis methods are used instead of the full finite element model.

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24

Vanags, Andris, Anna Ābeltiņa et Rosita Zvirgzdiņa. « Partnership strategy model for small and medium enterprises ». Problems and Perspectives in Management 16, n^o 1 (22 mars 2018) : 336–47. http://dx.doi.org/10.21511/ppm.16(1).2018.33.

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The Latvian economy mainly consists of small and medium sized enterprises (SMEs). There are two important moments in the enhancement of their successful development and competitiveness: competition and collaboration. In the modern world collaboration or partnership is starting to play an ever increasing role as is shown by the research carried out. This research analyzes the partnership model which consists of three components: partnership context component, external partner network component, and internal environment component.The following research methodology was used: monographic method based also on literature review; logically constructive method – to formulate conclusions, analyze the results and establish correlations; analytical method – to divide whole into parts and analyze the parts during the research; synthesis method – unification of elements into a system to research their correlations; social research methods – to obtain primary information and to verify it; graphic method – to depict factor interactions.

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25

Farstad, Jerry E., et Rajendra Singh. « Effects of component interfacial boundary conditions on component mode synthesis estimates for natural frequencies and modes. » Journal of the Acoustical Society of America 99, n^o 4 (avril 1996) : 2600–2603. http://dx.doi.org/10.1121/1.415306.

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26

Lindberg, Eskil, Nils-Erik Hörlin et Peter Göransson. « Component Mode Synthesis Using Undeformed Interface Coupling Modes to Connect Soft and Stiff Substructures ». Shock and Vibration 20, n^o 1 (2013) : 157–70. http://dx.doi.org/10.1155/2013/262354.

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Classical component mode synthesis methods for reduction are usually limited by the size and compatibility of the coupling interfaces. A component mode synthesis approach with constrained coupling interfaces is presented for vibro-acoustic modelling. The coupling interfaces are constrained to six displacement degrees of freedom. These degrees of freedom represent rigid interface translations and rotations respectively, retaining an undeformed interface shape. This formulation is proposed for structures with coupling between softer and stiffer substructures in which the displacement is chiefly governed by the stiffer substructure. Such may be the case for the rubber-bushing/linking arm assembly in a vehicle suspension system. The presented approach has the potential to significantly reduce the modelling size of such structures, compared with classical component mode synthesis which would be limited by the modelling size of the interfaces. The approach also eliminates problems of nonconforming meshes in the interfaces since only translation directions, rotation axes and the rotation point need to be common for the coupled substructures. Simulation results show that the approach can be used for modelling of systems that resemble a vehicle suspension. It is shown for a test case that adequate engineering accuracy can be achieved when the stiffness properties of the connecting parts are within the expected range of rubber connected to steel.

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27

MORITA, Shigeru, et Shouhe KUMANO. « Amendment of Identified Mode Shape for Component Mode Synthesis ». Transactions of the Japan Society of Mechanical Engineers Series C 63, n^o 608 (1997) : 1153–58. http://dx.doi.org/10.1299/kikaic.63.1153.

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28

Ahn, Chang-uk, Soo Min Kim, Dong Il Park et Jin-Gyun Kim. « Refining characteristic constraint modes of component mode synthesis with residual modal flexibility ». Mechanical Systems and Signal Processing 178 (octobre 2022) : 109265. http://dx.doi.org/10.1016/j.ymssp.2022.109265.

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29

Lee, Jaehun, et Maenghyo Cho. « An interpolation-based parametric reduced order model combined with component mode synthesis ». Computer Methods in Applied Mechanics and Engineering 319 (juin 2017) : 258–86. http://dx.doi.org/10.1016/j.cma.2017.02.010.

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30

Garcia-Reynoso, A., et W. P. Seering. « Modeling the Vibration of Systems Whose Configuration Can Vary ». Journal of Mechanisms, Transmissions, and Automation in Design 111, n^o 1 (1 mars 1989) : 19–24. http://dx.doi.org/10.1115/1.3258963.

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A method is developed for predicting vibration-response characteristics of systems whose configuration changes during operation. A cartesian robot, an example of such a position-dependent system, served as a test case and was studied in detail. The chosen system model was formulated using the technique of Component Mode Synthesis (CMS). The model assumes that the system is slowly varying, and connects the carriages to each other and to the robot structure at the slowly varying connection points. Specific problems addressed in this paper include modeling of continually varying points of connection between components and selection of boundary conditions to represent overconstrained component boundaries. A method for curve-fitting modal data is also presented.

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31

Zhu, Yutian. « Precisely compensated efficient component mode synthesis method ». Chinese Journal of Mechanical Engineering (English Edition) 17, n^o 01 (2004) : 142. http://dx.doi.org/10.3901/cjme.2004.01.142.

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32

Bourquin, F., et F. d'Hennezel. « Intrinsic component mode synthesis and plate vibrations ». Computers & ; Structures 44, n^o 1-2 (juillet 1992) : 315–24. http://dx.doi.org/10.1016/0045-7949(92)90250-4.

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33

Brown, Andrew M., et Aldo A. Ferri. « Probabilistic component mode synthesis of nondeterministic substructures ». AIAA Journal 34, n^o 4 (avril 1996) : 830–34. http://dx.doi.org/10.2514/3.13146.

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34

Muravyov, Alexander, et Stanley G. Hutton. « Component mode synthesis for nonclassically damped systems ». AIAA Journal 34, n^o 8 (août 1996) : 1664–69. http://dx.doi.org/10.2514/3.13287.

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35

Nyström, M., et K. Orsborn. « Computational database technology for component mode synthesis ». Advances in Engineering Software 35, n^o 10-11 (octobre 2004) : 735–45. http://dx.doi.org/10.1016/j.advengsoft.2003.10.010.

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36

Wang, W., et J. Kirkhope. « Complex component mode synthesis for damped systems ». Journal of Sound and Vibration 181, n^o 5 (avril 1995) : 781–800. http://dx.doi.org/10.1006/jsvi.1995.0171.

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37

Jakobsson, Håkan, Fredrik Bengzon et Mats G. Larson. « Adaptive component mode synthesis in linear elasticity ». International Journal for Numerical Methods in Engineering 86, n^o 7 (10 décembre 2010) : 829–44. http://dx.doi.org/10.1002/nme.3078.

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38

Dutt, Nikil D., et Pradip K. Jha. « RT Component Sets for High-Level Design Applications ». VLSI Design 5, n^o 2 (1 janvier 1997) : 155–65. http://dx.doi.org/10.1155/1997/35614.

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The system-level design process typically involves refining a design specification down to the point where each of the system's components is described as a block diagram or netlist of abstract Register-Transfer (RT) level components. In this paper, we motivate the need for such a standard RT component set, and describe a library environment that supports automatic model generation, design reuse, and synthesis with technology-specific estimators. We demonstrate the efficacy of the standard RT-component set approach with experiments performed on the HLSW92 benchmarks. Our preliminary results indicate only a small overhead of about 10% in using these standard, generic components. We then describe an automatic model generation and technology projection scheme that uses fast (on-line) estimators for predicting the area and delay of generic RT components tuned to a particular technology library with an accuracy of 10%. These model generators and estimators have been integrated with a high-level synthesis system at U.C. Irvine.

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39

Chen, Zhili, Peng Wang, Zhixian Gui et Qinghui Mao. « Three-Component Microseismic Data Denoising Based on Re-Constrain Variational Mode Decomposition ». Applied Sciences 11, n^o 22 (19 novembre 2021) : 10943. http://dx.doi.org/10.3390/app112210943.

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Microseismic monitoring is an important technology used to evaluate hydraulic fracturing, and denoising is a crucial processing step. Analyses of the characteristics of acquired three-component microseismic data have indicated that the vertical component has a higher signal-to-noise ratio (SNR) than the two horizontal components. Therefore, we propose a new denoising method for three-component microseismic data using re-constrain variational mode decomposition (VMD). In this method, it is assumed that there is a linear relationship between the modes with the same center frequency among the VMD results of the three-component data. Then, the decomposition result of the vertical component is used as a constraint to the whole denoising effect of the three-component data. On the basis of VMD, we add a constraint condition to form the re-constrain VMD, and deduce the corresponding solution process. According to the synthesis data analysis, the proposed method can not only improve the SNR level of three-component records, it also improves the accuracy of polarization analysis. The proposed method also achieved a satisfactory effect for field data.

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40

Hillestad, Magne. « Modeling the Fischer–Tropsch Product Distribution and Model Implementation ». Chemical Product and Process Modeling 10, n^o 3 (1 septembre 2015) : 147–59. http://dx.doi.org/10.1515/cppm-2014-0031.

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Abstract The main purpose of this paper is to provide a framework to model a consistent product distribution from the Fischer–Tropsch synthesis. We assume the products follow the Anderson–Schulz–Flory distribution and that there is no chain limitation. Deviation from the ASF distribution is taken into account. In order to implement such a model it is necessary to aggregate reactions into a finite number of reactions and to group components into lumps of components. Here, the component distribution within each lump is described by three parameters, and it is shown how these parameters are modeled. The method gives a considerable reduction of dimensionality and it is demonstrated that the component distribution within the lumps can be reconstructed with accuracy.

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41

Cha, Hyun Joo, Jin Ho Kim et Shi Bok Lee. « Hybrid Component Mode Synthesis Considering Residual Dynamic Flexibility Attachment Mode ». Transactions of the Korean Society of Mechanical Engineers A 29, n^o 5 (1 mai 2005) : 716–25. http://dx.doi.org/10.3795/ksme-a.2005.29.5.716.

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42

Shyu, Wen-Hwa, Zheng-Dong Ma et Gregory M. Hulbert. « A new component mode synthesis method : Quasi-static mode compensation ». Finite Elements in Analysis and Design 24, n^o 4 (février 1997) : 271–81. http://dx.doi.org/10.1016/s0168-874x(96)00066-2.

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43

De Smet, M., C. Liefooghe, P. Sas et R. Snoeys. « Dynamic Analysis of Flexible Structures Using Component Mode Synthesis ». Journal of Applied Mechanics 56, n^o 4 (1 décembre 1989) : 874–80. http://dx.doi.org/10.1115/1.3176185.

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In this paper a dynamic model of a flexible robot is built out of a finite element model of each of its links. The number of degrees-of-freedom of these models is strongly reduced by applying the Component Mode Synthesis technique which involves the preliminary calculation of a limited number of mode shapes of the separate links. As can be seen from examples, the type of boundary conditions thereby imposed in the nodes in which one link is connected to the others, strongly determines the accuracy of the calculated resonance frequencies of the robot. The method is applied to an industrial manipulator. The reduced finite element model of the robot is changed in order to match the numerically and experimentally (modal analysis) determined resonance data. Further, the influence of the position of the robot on its resonance frequencies is studied using the optimized numerical model.

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44

Tran, D. M. « Component mode synthesis methods using interface modes. Application to structures with cyclic symmetry ». Computers & ; Structures 79, n^o 2 (janvier 2001) : 209–22. http://dx.doi.org/10.1016/s0045-7949(00)00121-8.

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45

Miraglia, Gaetano, Milos Petrovic, Giuseppe Abbiati, Nebojsa Mojsilovic et Bozidar Stojadinovic. « A model‐order reduction framework for hybrid simulation based on component‐mode synthesis ». Earthquake Engineering & ; Structural Dynamics 49, n^o 8 (12 février 2020) : 737–53. http://dx.doi.org/10.1002/eqe.3262.

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46

Bladh, R., M. P. Castanier et C. Pierre. « Component-Mode-Based Reduced Order Modeling Techniques for Mistuned Bladed Disks—Part I : Theoretical Models ». Journal of Engineering for Gas Turbines and Power 123, n^o 1 (2 avril 2000) : 89–99. http://dx.doi.org/10.1115/1.1338947.

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Component mode synthesis (CMS) techniques are widely used for dynamic analyses of complex structures. Significant computational savings can be achieved by using CMS, since a modal analysis is performed on each component structure (substructure). Mistuned bladed disks are a class of structures for which CMS is well suited. In the context of blade mistuning, it is convenient to view the blades as individual components, while the entire disk may be treated as a single component. Individual blade mistuning may then be incorporated into the CMS model in a straightforward manner. In this paper, the Craig–Bampton (CB) method of CMS is formulated specifically for mistuned bladed disks, using a cyclic disk description. Then a novel secondary modal analysis reduction technique (SMART) is presented: a secondary modal analysis is performed on a CB model, yielding significant further reduction in model size. In addition, a straightforward non-CMS method is developed in which the blade mistuning is projected onto the tuned system modes. Though similar approaches have been reported previously, here it is generalized to a form that is more useful in practical applications. The theoretical models are discussed and compared from both computational and practical perspectives. It is concluded that using SMART, based on a CB model, has tremendous potential for highly efficient, accurate modeling of the vibration of mistuned bladed disks.

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47

Park, K. C., et Yong Hwa Park. « Partitioned Component Mode Synthesis via a Flexibility Approach ». AIAA Journal 42, n^o 6 (juin 2004) : 1236–45. http://dx.doi.org/10.2514/1.10423.

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48

Liu, M. H., et G. T. Zheng. « Improved Component-Mode Synthesis for Nonclassically Damped Systems ». AIAA Journal 46, n^o 5 (mai 2008) : 1160–68. http://dx.doi.org/10.2514/1.32869.

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49

FURUYA, Kohei, et Takuya YOSHIMURA. « Component Mode Synthesis (CMS) for Vibro-Acoustic System ». Transactions of the Japan Society of Mechanical Engineers Series C 73, n^o 732 (2007) : 2263–70. http://dx.doi.org/10.1299/kikaic.73.2263.

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50

Bhat, R. B. « Component mode synthesis in modal testing of structures ». Journal of Sound and Vibration 101, n^o 2 (juillet 1985) : 271–72. http://dx.doi.org/10.1016/s0022-460x(85)81222-0.

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