Results 261 to 270 of about 18,357 (296)

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 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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Unified Multi-Modal Image Synthesis for Missing Modality Imputation

IEEE Transactions on Medical Imaging
Multi-modal medical images provide complementary soft-tissue characteristics that aid in the screening and diagnosis of diseases. However, limited scanning time, image corruption and various imaging protocols often result in incomplete multi-modal images,
Yue Zhang, Chengtao Peng, Qiuli Wang
exaly   +3 more sources

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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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 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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A Modal Synthesis Method Based on Analytical Eigensolutions of the Substructures with Condensation of Modal Degrees of Freedom.

, 1990
A modal method for the calculation of natural frequencies and mode shapes of large linear structures is presented. In order to reduce the number of modal degrees of freedom, the influence of the higher-order substructure modes is estimated by static and
Irretier, H. (1), Sinapius, M.
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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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