Results 221 to 230 of about 17,210 (258)

Modal synthesis: Generalization of MacNeal's method. theoretical basis

Computer Methods in Applied Mechanics and Engineering, 1985
In this paper, a theoretical basis of the generalization of MacNeal's modal synthesis method [\textit{R. H. MacNeal}, A hybrid method of component mode synthesis, Comput. Struct. 1 (4) (1971)] is presented. This method allows the computation of eigenvectors and eigenfrequencies of a structure from the eigenfrequencies and modes of the subcomponents of ...
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A substructure modal synthesis method with high computational efficiency

Computer Methods in Applied Mechanics and Engineering, 1990
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, J. H., Chen, H. R.
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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 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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Experimental modal synthesis method for reducing car interior noise

The Journal of the Acoustical Society of America, 1996
The experimental modal synthesis method has been very popular for analyzing the dynamic behavior of structures. Recently, the demand for reducing not only vibration but also noise has been increasing in the development of industrial machines. In order to deal with noise and vibration simultaneously, the structural–acoustic coupling problem must be ...
Haruki Yashiro, Akinori Iwama
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The Application of Modal Synthesis Method in the Processing Center Dynamics Analysis

Applied Mechanics and Materials, 2012
Modal synthesis method is a method which can reduce structural degrees of freedom, it is applicable for analysis and calculations of Machining centers and other large-scale structure. In this paper, the dynamical performance of Five-axis boring and milling processing center was studied with component mode synthesis technology . Compared with full model
Peng Liu, Chun Jie Wang, Ru Sun
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Synthesis of the Control of a Twin-Rotor Control System by the Method of Modal Synthesis

2022
В данной статье предложен регулятор для двухроторной системы управления (twin-rotor MIMO system) на основе применения методов модального синтеза с наблюдателем Люенбергера полного порядка. Двухроторная система управления представляет собой экспериментальную установку, которая по динамике движения походит на вертолет.
Teslenko, A. R., Ponomareva, E. V.
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The technique of modal synthesis method with decoupling control channels

2014 12th International Conference on Actual Problems of Electronics Instrument Engineering (APEIE), 2014
The problem of finding an algorithm for matrix feedback, providing the specified zeros individual transfer functions, until finally solved in control theory of linear stationary systems. As for a multidimensional system matrix system provides a predetermined range of the poles is not unique, then, generally speaking, this is not the only can be used to
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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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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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