Results 21 to 30 of about 33,387 (263)
A NOISE SUPPRESSION METHOD BASED ON COMPLEX EIGENVALUE ANALYSIS OF DISC BRAKE VIBRATION (MT)
Jixie qiangdu, 2023 Focusing on investigating the brake squeal problem of a disc brake at 3 000 Hz. To this end, the noise of this frequency is reproduced on the bench, the laser Doppler vibration measurement technology is used to obtain the operational deflection shape（ODS）
ZHAN Bin +4 more
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A new shape optimization with robustness and its application for brake squeal phenomena
Nihon Kikai Gakkai ronbunshu, 2016 This paper proposes a new shape optimization with robustness, and its application for disc brake squeal phenomena is shown. The disc brake squeal is known as self-excited vibration; the real and imaginary parts of the complex eigenvalue indicate the ...
Kohei FURUYA +2 more
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Complex eigenvalue analysis of rotors by the transfer coefficient method.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1990 This paper proposes a new method for rotor dynamics calculations, called the transfer coefficient method, which is more convenient than the conventional transfer matrix method. By treating only the displacement as the independent variable, where both the displacement and the force are considered as independent variables in the transfer matrix method ...
KOBAYASHI, Masao, SAITO, Shinobu
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Complex eigenvalue analysis and parameters analysis to investigate the formation of railhead corrugation in sharp curves [PDF]
Wear, 2020 Abstract Rail corrugation, a quasi-sinusoidal irregularity of the rail head, is a common issue experienced throughout the railway networks worldwide. It generally leads to high wheel-rail dynamic loads, increased noise emission, and poor ride comfort. Most commonly, rail corrugation is likely to develop on sharp curves.
El Beshbichi O. +3 more
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Component mode synthesis with residual stiffness for brake squeal complex eigenvalue problem
Nihon Kikai Gakkai ronbunshu, 2014 This paper discusses component mode synthesis (CMS) to solve the complex eigenvalue problem that expresses the disk brake squeal equation. The disk brake squeal is known as self-excited vibration; the real and imaginary parts of the complex eigenvalue ...
Kohei FURUYA +2 more
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Using sensitivity analyses to understand bistable system behavior
BMC Bioinformatics, 2023 Background Bistable systems, i.e., systems that exhibit two stable steady states, are of particular interest in biology. They can implement binary cellular decision making, e.g., in pathways for cellular differentiation and cell cycle regulation.
Vandana Sreedharan +2 more
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Polynomial eigenvalue solution for elastic wave prediction of piezoelectric shunting arrays
Frontiers in Physics, 2022 This paper presents a polynomial eigenvalue solution to predict the propagation behaviors of elastic wave in piezoelectric shunting arrays. Based on the Bloch theorem, one independent unit cell is selected to conduct the dynamic characteristic analysis ...
Huisong Yang, Gang Wang
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Complex eigenvalue analysis of railway wheel/rail squeal
International Journal of Engineering, Science and Technology, 2016 Wheel/rail squeal noise of trains is one of the challenging problems of trains, but a successful model for the squeal problem has not been presented until now. In this study, a new approach was presented to investigate the basic mechanism of the wheel/rail squeal noise, using complex eigenvalue analysis by the finite element method.
Goo, B.C., Kim, J.C.
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A Novel Eigenvalue Algorithm for the Complex Band Structure and Eigenmodes of Plasmonic Crystals
IEEE Photonics Journal, 2016 The influence of ohmic (metallic) loss on the complex band structure (BS) and eigenmodes of 2-D plasmonic crystals is investigated. With the help of wave equations and periodic boundary conditions, a finite-difference-based eigenvalue algorithm is ...
Hui Wang +3 more
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On spurious instabilities on the β-planes with no mean flows [PDF]
Annales Geophysicae, 2010 Recent numerical calculations that suggest the existence of instabilities of the shallow water equations on the β-planes (both mid-latitudes and on the equator) are shown to be associated with spurious instabilities rather than genuine unstable modes.
N. Paldor
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