Results 71 to 80 of about 12,395 (174)

Self-consistently Improved Finite Temperature Effective Potential for Gauge Theories

, 1993
The finite temperature effective potential of the Abelian Higgs Model is studied using the self-consistent composite operator method, which sums up the contributions of daisy and superdaisy diagrams. The effect of the momentum dependence of the effective
C. Athorne, C. G. Boyd, D. J. Gross, D. Kirzhnits, D. Kirzhnits, D. Kirzhnits, F. Freire, G. Amelino-Camelia, G. Amelino-Camelia, G. Amelino-Camelia, H.A. Bethe, J. Kapusta, J. Kapusta, J. M. Cornwall, J. March-Russell, J. R. Espinosa, J. R. Espinosa, L. Dolan, M. Dine, M. Dine, M. Dine, M. E. Carrington, M. E. Shaposhnikov, M. E. Shaposhnikov, P. Arnold, P. Arnold, P. Elmfors, R. R. Parwani, R. Takahashi, S. Weinberg, V. Jain, W. Buchmueller   +31 more
core   +1 more source

Vibration Analysis of a Pipeline System Based on Model Truncation

Shock and Vibration, Volume 2025, Issue 1, 2025.
Designing a complex pipeline for a floating production storage and offloading (FPSO), particularly over long distances, presents significant challenges in vibration analysis. Traditional modeling methods, which often assume finite lengths and simple configurations, fall short as they do not account for the integrality and locality of long spans and the
Huawei Han, Qiang Fu, Changhui Wang, Yuhai Sun, Changfei Li, Cong Gao   +5 more
wiley   +1 more source

A Unified Spectro-Geometric-Ritz Method for Vibration Analysis of Open and Closed Shells with Arbitrary Boundary Conditions

Shock and Vibration, 2016
This paper presents free vibration analysis of open and closed shells with arbitrary boundary conditions using a spectro-geometric-Ritz method. In this method, regardless of the boundary conditions, each of the displacement components of open and closed ...
Dongyan Shi, Yunke Zhao, Qingshan Wang, Xiaoyan Teng, Fuzhen Pang   +4 more
doaj   +1 more source

Rayleigh-Ritz Calculation of Effective Potential Far From Equilibrium

, 1996
We demonstrate the utility of a Rayleigh-Ritz scheme recently proposed to compute the nonequilibrium effective potential nonperturbatively in a strong noise regime far from equilibrium.
A. Crisanti, E. Merzbacher, E. N. Lassettre, E. W. Montroll, Francis J. Alexander, G. Jona-Lasinio, G. L. Eyink, G. L. Eyink, Gregory L. Eyink, H. A. Kramers, H. A. Kramers, H. Calisto, H. D. Vollmer, H. Risken, J. M. Cornwall, J. Schwinger, K. Symanzik, L. Onsager, L. Onsager, M. Abramowitz, R. Graham, R. Jackiw, W. Heisenberg   +22 more
core   +1 more source

Modeling Method and Vibration Analysis of Dovetail Jointed Blade Set With Underplatform Damper by Considering Thermal Effect

Shock and Vibration, Volume 2025, Issue 1, 2025.
Considering the thermal environment of rotating blades, this paper calculated the predeformation caused by thermal strain and centrifugal strain using the pseudo‐static analysis method. The finite element model of the structural dynamics of blades was constructed by applying the predeformation. Then, this paper solved the nonlinear forces acting on the
Yong Zhang, Chaofeng Li, Shuhua Yang, Jigang Meng, Haoyan Zhang, Xingyu Tai, Tichang Jia, Qingshan Gu, Yan Niu   +8 more
wiley   +1 more source

Quasicomparison Functions and Substructure Synthesis for Framed Structures Stability Analysis

Latin American Journal of Solids and Structures
The Rayleigh-Ritz-Meirovitch substructure synthesis method (RRMSSM) is extended to buckling analysis in framed structures. The objective is a computational procedure capable of yielding very accurate critical loads through solution of very-low-order ...
J. I. Colombo, C. A. Morales
doaj   +1 more source

SWECS tower dynamics analysis methods and results [PDF]

, 1981
Several different tower dynamics analysis methods and computer codes were used to determine the natural frequencies and mode shapes of both guyed and freestanding wind turbine towers.
Butterfield, C. P., Sexton, J. H., Thresher, R. M., Wright, A. D.   +3 more
core   +1 more source

Fluctuation-Response Relations for Multi-Time Correlations

, 1999
We show that time-correlation functions of arbitrary order for any random variable in a statistical dynamical system can be calculated as higher-order response functions of the mean history of the variable.
C. Bischof, C. D. Levermore, D. G. Cacuci, D. G. Cacuci, G. L. Eyink, G. L. Eyink, G. L. Eyink, J. M. Sancho, L. F. Cugliandolo, R. Graham, R. H. Kraichnan, R. O. Fox, U. Deker, V. L’vov   +13 more
core   +1 more source

Block Locally Optimal Preconditioned Eigenvalue Xolvers (BLOPEX) in hypre and PETSc

, 2007
We describe our software package Block Locally Optimal Preconditioned Eigenvalue Xolvers (BLOPEX) publicly released recently. BLOPEX is available as a stand-alone serial library, as an external package to PETSc (``Portable, Extensible Toolkit for ...
Argentati, M.E., Argentati, M.E., Knyazev, A.V., Knyazev, A.V., Lashuk, I., Lashuk, I., Ovtchinnikov, E., Ovtchinnikov, E.   +7 more
core   +1 more source

Free and Forced Vibration Analysis of Airtight Cylindrical Vessels with Doubly Curved Shells of Revolution by Using Jacobi-Ritz Method

Shock and Vibration, 2017
This paper presents free and forced vibration analysis of airtight cylindrical vessels consisting of elliptical, paraboloidal, and cylindrical shells by using Jacobi-Ritz Method.
Fuzhen Pang, Haichao Li, Kwangnam Choe, Dongyan Shi, Kwanghun Kim   +4 more
doaj   +1 more source