Results 81 to 90 of about 12,056 (269)
On‐Orbit Global Mode Calculation and Characteristic Analysis of Four‐Wing Flexible Satellite
International Journal of Aerospace Engineering, Volume 2025, Issue 1, 2025.For a flexible satellite with four solar arrays symmetrically arranged on both sides (referred to as the four‐wing flexible satellite), a solar array dynamic equation is established by incorporating the stiffness matrix of the solar array drive assembly (SADA).
Guowei Jiang +5 more
wiley +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 +13 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 +5 more
wiley +1 more source
Spline-based Rayleigh-Ritz methods for the approximation of the natural modes of vibration for flexible beams with tip bodies [PDF]
Rayleigh-Ritz methods for the approximation of the natural modes for a class of vibration problems involving flexible beams with tip bodies using subspaces of piecewise polynomial spline functions are developed. An abstract operator theoretic formulation
Rosen, I. G.
core +1 more source
Boundary conditions for augmented plane wave methods
, 2005 The augmented plane wave method uses the Rayleigh-Ritz principle for basis functions that are continuous but with discontinuous derivatives and the kinetic energy is written as a pair of gradients rather than as a Laplacian.
Brouder, Christian
core +1 more source
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 +8 more
wiley +1 more source
Thermal stresses in a spherical pressure vessel having temperature-dependent, transversely isotropic, elastic properties [PDF]
Rayleigh-Ritz and modified Rayleigh-Ritz procedures are used to construct approximate solutions for the response of a thick-walled sphere to uniform pressure loads and an arbitrary radial temperature distribution.
Tauchert, T. R.
core +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. +3 more
core +1 more source
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 +31 more
core +1 more source
Bending and Deformation of Sandwich Panels Due to Localized Pressure
ITB Journal of Engineering Science, 2005 Bending and deformation of sandwich panels due to localized pressure were analyzed using both Rayleigh-Ritz and finite element methods. The faces were made of laminated composite plates, while the core was a honeycomb material.
Bambang K. Hadi, A. Fajar
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