Results 1 to 10 of about 8,118 (208)
Imperfect Geometric Control and Overdamping for The Damped Wave Equation [PDF]
Communications in Mathematical Physics, 2014 We consider the damped wave equation on a manifold with imperfect geometric control. We show the sub-exponential energy decay estimate in \cite{Chr-NC-erratum} is optimal in the case of one hyperbolic periodic geodesic. We show if the equation is overdamped, then the energy decays exponentially.
Burq, Nicolas, Christianson, Hans
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Pauli crystal melting in shaken optical traps
SciPost Physics, 2023 Pauli crystals are ordered geometric structures that emerge in trapped noninteracting fermionic systems due to their underlying Pauli repulsion. The deformation of Pauli crystals - often called melting - has been recently observed in experiments, but the
Jiabing Xiang, Paolo Molignini, Miriam Büttner, Axel U. J. Lode
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Reducing sensitivity to initial imperfections by changing bifurcation diagrams
Structural Mechanics of Engineering Constructions and Buildings, 2023 An approach to the construction of equilibrium state diagrams is presented in order to reduce the sensitivity to initial imperfections for the problem of stability for reinforced plates (transfer of the bifurcation point corresponding to the wave ...
Gaik A. Manuylov +2 more
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Optimal Design of Trusses With Geometric Imperfections
13th AIAA/ISSMO Multidisciplinary Analysis Optimization Conference, 2010 The present paper focuses on optimization of trusses that have randomness in geometry that may arise from fabrication errors. The analysis herein is a generalization of a perturbation approach to topology optimization under geometric uncertainties. The main novelty in the present paper is in the consideration of potential buckling due to misaligned ...
Mehdi Jalalpour +2 more
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Fourier representation of geometrical imperfection for probabilistic buckling analysis
Jurnal Ilmiah SINERGIThis research studies the first part of the failure of a compression member structure due to buckling. This unstable equilibrium collapse, exposes brittle failure which occurs suddenly and therefore should be avoided wherever possible.
Pariatmono Sukamdo +5 more
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Real Geometrical Imperfection of Bow-String Arches—Measurement and Global Analysis
Applied Sciences, 2020 In order to analyse the buckling behaviour of existing bow-string arch bridges, it is necessary to deal with the imperfections that influence the global stability of their superstructures. Direct quantification of the material imperfections represents an
Jaroslav Odrobiňák +4 more
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NUMERICAL MODEL FOR ANALYSIS OF STEEL FRAME STRUCTURES WITH INCLUDED GEOMETRIC IMPERFECTIONS [PDF]
e-Zbornik. Elektronički Zbornik Radova Građevinskog Fakulteta, 2020 Numerical model based on finite element method for analysis of steel frame structures is presented. Model is implemented in computer program [9] and implies application of 1D (beam) finite element.
Radoslav Markić
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Advances in Mechanical Engineering, 2019 This article investigates the elastic compound buckling behavior of latticed columns with three lacing systems under two boundary conditions. Valid numerical method named SEM, that conducts buckling analysis using strain energy of bars and potential ...
Yinqi Li +3 more
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Stochastic Dynamic Buckling Analysis of Cylindrical Shell Structures Based on Isogeometric Analysis
MathematicsIn this paper, we extend our previous work on the dynamic buckling analysis of isogeometric shell structures to the stochastic situation where an isogeometric deterministic dynamic buckling analysis method is combined with spectral-based stochastic ...
Qingqing Yu +5 more
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Budownictwo i Architektura, 2013 In recent years, in our country are modernized and rebuilt several sections of railway lines, mainly main lines. The greater part is adapted to increased speeds.
Adam Wysokowski
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