Results 261 to 270 of about 133,377 (299)

A substructure modal synthesis method with high computational efficiency

Computer Methods in Applied Mechanics and Engineering, 1990
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Wang, J. H., Chen, H. R.
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Modal synthesis method for norm computation ofH ∞ decentralized control systems (II)

Applied Mathematics and Mechanics, 2004
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Zhong, Wanxie, Wu, Zhigang, Gao, Qiang, Leung, A. Y. T., Williams, F. W.   +4 more
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Component Modal Synthesis Methods Based on Hybrid Models, Part I: Theory of Hybrid Models and Modal Truncation Methods

Journal of Applied Mechanics, 1994
The assembly of structures along continuous boundaries poses great difficulties for expressing generalized boundary coordinates in modal synthesis, especially in the context of experiments. In order to solve such problems, a hybrid modal synthesis method is proposed in this study.
L. Jezequel, H. D. Seito
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Improved method of generating control system model using modal synthesis

Modeling and Simulation Technologies Conference, 1997
Component mode synthesis method of analyzing large structures is a very powerful and efficient tool available in many widely used finite element codes. The method is mostly used in structural analysis. This paper shows how modal synthesis can be used to generate control system models.
Tarun Ghosh, Tarun Ghosh
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A Modal Synthesis Technique Based on the Force Derivative Method

Journal of Vibration and Acoustics, 1992
In this paper a new free interface modal synthesis method for the dynamic analysis of linear structures by the finite element method is developed. The technique is based on the so called higher order modal combination methods. In particular, the second force derivative method is used to accurately include the effect of the higher truncated modes in the
L. E. Suarez, E. E. Matheu
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The mixed substructure synthesis method with physics-impedance-modal parameter

Structural Engineering and Mechanics, 1999
Based on the concept of the parameter-mixed synthesis, this paper presents a mixed formulation of the substructure synthesis method in terms of the physics-impedance-mo dal parameter. An example is given to show the validity of this method.
Jianjun Wang, Qihan Li, Zhigen Zhu
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Reverberant Sound Field Analysis of a Rectangular Room by Modal Synthesis Method

INTER-NOISE and NOISE-CON Congress and Conference Proceedings, 2023
It is well known that the reverberation time within an enclosed space is dominated by its boundary surface absorption. The absorption can then be interpreted as averaged damping ratio of acoustical modes or a loss factor. The damping ratio can be determined during steady state excitation or during the transient decay or reverberation process.
Yasushi Takano, Ryouhei Hanayama, Yusuke Makino   +2 more
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A hybrid method of modal synthesis using vibration tests

Journal of Sound and Vibration, 1985
Abstract The assembly of structures along continuous boundaries presents great difficulty in the context of modal synthesis. In order to solve such problems, a method is proposed in which a hybrid model is defined reflecting the dynamic behavior of a structure loaded along a boundary.
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Generalized receptance‐based method for accurate and efficient modal synthesis

International Journal for Numerical Methods in Engineering, 1999
The author underlines that growing demand for computational accuracy compels the practical finite element analysis to deal with the number of degrees of freedom about of tens thousends. This requires to reduce the dimension of problems. To this end, the author proposes an accurate and efficient receptance-based method for modal synthesis.
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METHOD OF MODAL SYNTHESIS IN THE DYNAMICS OF A DEFORMABLE SPATIAL STRUCTURE

Far East Journal of Dynamical Systems, 2018
Summary: The modal analysis of a rotating elastic space vehicle composed of a central rigid body connected to two solar arrays is the subject of this investigation. The global modes differential equations of the whole mechanical system are defined by means of Hamilton variational principle.
Sylla, Moussa, Kouassi, Saraka Jean Modeste   +1 more
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