Results 231 to 240 of about 31,897 (265)

Study on the design sensitivity analysis based on complex variable in eigenvalue problem

Finite Elements in Analysis and Design, 2009
In the sensitivity techniques, the adjoint variable method is quite popular because it reduces computation time and save computer resources. Commonly, the adjoint variable method employs exact analytical differentiation with respect to the design variables. But, it can be cumbersome to precisely differentiate every given type of finite element.
Hyungi Kim, Maenghyo Cho
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Largest eigenvalue of complex wishart matrices and performance analysis of MIMO MRC systems

IEEE Journal on Selected Areas in Communications, 2003
This paper extends Khatri (1964, 1969) distribution of the largest eigenvalue of central complex Wishart matrices to the noncentral case. It then applies the resulting new statistical results to obtain closed-form expressions for the outage probability of multiple-input-multiple-output (MIMO) systems employing maximal ratio combining (known also as ...
null Ming Kang, M. Alouini
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Combining a Nonlinear Static Analysis and Complex Eigenvalue Extraction in Brake Squeal Simulation

SAE Technical Paper Series, 2003
<div class="htmlview paragraph">This paper presents a new functionality of ABAQUS/Standard, which allows for a nonlinear analysis prior to a complex eigenvalue extraction in order to study the stability of brake systems. Friction-induced dynamic instabilities are caused mainly by two phenomena: coupling of two neighboring modes and negative ...
Andrzej Bajer, Vladimir Belsky, Li Jun Zeng   +2 more
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Homogeneous eigenvalue analysis for complex homogeneous systems of degree (/spl lscr/, /spl lscr/)

SICE Annual Conference 2007, 2007
In this paper, we analyze the stability of complex homogeneous systems of degree (/spl lscr/, /spl lscr/) by homogeneous eigenvalues. First, we define homogeneous eigenvalues and homogeneous eigenvectors for complex homogeneous systems of degree (/spl lscr/, /spl lscr/). Then, we obtain solutions on homogeneous eigenvectors.
N. Nakamura, H. Nakamura, Y. Yamashita, H. Nishitani   +3 more
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Low Frequency Squeal Noise Reduction using Mode Participation Factor in Complex Eigenvalue Analysis

Transactions of the Korean Society of Mechanical Engineers A, 2013
In this study, a complex eigenvalue analysis is implemented to verify the unstable mode of a brake system using ABAQUS software. The component participation factors and component modal participation factors are used to analyze the total contributions from each component and each component mode to a particular unstable system mode. This study shows that
Jeong Min Park, Hyun Soo Kim, Moon Young Yoon, Kwang Seok Boo, Heung Seob Kim   +4 more
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Distributed Platoon Control Under Topologies With Complex Eigenvalues: Stability Analysis and Controller Synthesis

IEEE Transactions on Control Systems Technology, 2019
The platooning of autonomous vehicles can significantly benefit road traffic. Most previous studies on platoon control have only focused on specific communication topologies, especially those with real eigenvalues. This paper extends existing studies on distributed platoon control to more generic topologies with complex eigenvalues, including both ...
Shengbo Eben Li, Xiaohui Qin, Yang Zheng, Jianqiang Wang, Keqiang Li, Hongwei Zhang   +5 more
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Convergence Analysis of the Parareal-Euler Algorithm for Systems of ODEs with Complex Eigenvalues

Journal of Scientific Computing, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Rotating Disc Model for Complex Eigenvalue Analysis of Brake Squeal

Modelling of disc rotor is a key step in building a disc brake model for squeal analysis. While braking, the disc is rotating and other components are fixed and there are sliding contact between the pads and the disc. In the most common used complex eigenvalue analysis method, the moving load nature was normally ignored.
Yujian Wang, Yongchang Du, Pu Gao
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Legendre-Fourier spectral approximation and error analysis for nonlinear eigenvalue problems in complex domains

Journal of Applied Mathematics and Computing
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jihui Zheng, Jing An
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
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