Results 21 to 30 of about 473,597 (273)
Numerical Analysis of Nonlinear Eigenvalue Problems [PDF]
Journal of Scientific Computing, 2010 We provide a priori error estimates for variational approximations of the ground state eigenvalue and eigenvector of nonlinear elliptic eigenvalue problems of the form $-{div} (A\nabla u) + Vu + f(u^2) u = u$, $\|u\|_{L^2}=1$. We focus in particular on the Fourier spectral approximation (for periodic problems) and on the $ _1$ and $ _2$ finite ...
Cancès, Eric +2 more
openaire +2 more sources
Optimal Controller and Filter Realisations using Finite-precision, Floating- point Arithmetic. [PDF]
, 2005 The problem of reducing the fragility of digital controllers and filters implemented using finite-precision, floating-point arithmetic is considered.
Chen, Sheng +3 more
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Flight Stability of Rigid Wing Airborne Wind Energy Systems
Energies, 2021 The flight mechanics of rigid wing Airborne Wind Energy Systems (AWESs) is fundamentally different from the one of conventional aircrafts. The presence of the tether largely impacts the system dynamics, making the flying craft to experience forces which ...
Filippo Trevisi +2 more
doaj +1 more source
Nihon Kikai Gakkai ronbunshu, 2015 This study will address the improvement of the analytical accuracy of a lateral vibration analysis model for rotor-dynamics. In case of predicting the lateral vibration of a rotor with disc elements fixed on the shaft by the interference fit, the ...
Nobuaki NAGAE +3 more
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Energies, 2020 Active power outputs of a wind farm connected to a weak power grid greatly affect the stability of grid-connected voltage source converter (VSC) systems.
Yafeng Hao +5 more
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Stability limit of double-fed induction generator system connected to weak grid
电力工程技术, 2022 With large-scale wind turbines connected to the power system, the power grid strength becomes weak, leading to unstability problem of wind turbines in DC voltage control timescale.
HUANG Yunhui +5 more
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Subsynchronous oscillation and its mitigation of VSC-MTDC with doubly-fed induction generator-based wind farm integration [PDF]
Archives of Electrical Engineering, 2021 Wind power integration through the voltage source converter-based high-voltage direct current (VSC-HVDC) system will be a potential solution for delivering large-scale wind power to the “Three-North Regions” of China. However, the interaction between the
Miaohong Su +3 more
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Conditioning analysis of block incomplete factorization and its application to elliptic equations [PDF]
, 1997 The paper deals with eigenvalue estimates for block incomplete fac- torization methods for symmetric matrices. First, some previous results on upper bounds for the maximum eigenvalue of preconditioned matrices are generalized to each eigenvalue.
Axelsson, Owe, Lu, Hao
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Transitions between nonsymmetric and symmetric steady states near a triple eigenvalue [PDF]
, 1983 We examine the existence of nonuniform steady-state solutions of a certain class of reaction-diffusion equations. Our analysis concentrates on the case where the first bifurcation is near a triple eigenvalue.
Cohen, D. S., Erneux, T.
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Fault diagnosis of press dies using dynamic mode decomposition of a sound signal
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2023 Although a wide range of machine failure diagnosis methods has been studied for bearings, gears, propellers, etc., there have been few studies on failure diagnosis methods for press machine dies.
Yuki KATO, Rintaro KUMAGAI
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