Results 121 to 130 of about 81,469 (234)

Development of a reduced basis technique for transient thermal analysis [PDF]

A technique to reduce the degrees of freedom in static and dynamic problems, the reduced basis method, is described. The method combines the classical Rayleigh-Ritz approximation with contemporary finite element methods to retain modeling versatility as ...
Shore, C. P.
core   +1 more source

Adaptive Virtual Element Method of Material‐Field Series Expansion Topology Optimization and Its Application in Metamaterials

International Journal for Numerical Methods in Engineering, Volume 127, Issue 1, 15 January 2026.
ABSTRACT This paper proposes a novel adaptive topology optimization framework that integrates the Virtual Element Method (VEM) with the Material‐Field Series Expansion (MFSE). Within the VEM‐MFSE framework, we propose a material gradient‐driven adaptive strategy, in which elements are refined in regions with higher material density gradients as the ...
Siqi Zhang, Kai Yang, Bing‐Bing Xu
wiley   +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

Implementation of the block-Krylov boundary flexibility method of component synthesis [PDF]

A method of dynamic substructuring is presented which utilizes a set of static Ritz vectors as a replacement for normal eigenvectors in component mode synthesis.
Abdallah, Ayman A., Carney, Kelly S., Hucklebridge, Arthur A.   +2 more
core   +1 more source

Discrete Ritz Method

International Conference on Computational & Experimental Engineering and Sciences, 2023
openaire   +1 more source

Modified Ritz Method [PDF]

Proceedings of the National Academy of Sciences, 1934
openaire   +3 more sources

Acoustic radiation characteristics of FG cylindrical shell based on Jacobi-Ritz modified boundary element method

Journal of Low Frequency Noise, Vibration and Active Control
In this paper, a semi-analytic method based on Jacobi-Ritz modified boundary element is proposed to solve the acoustic radiation response of functionally graded cylindrical shell.
Jiajun Zheng, Yuhang Tang, Haichao Li, Zhe Zhao, Fuzhen Pang, Cong Gao   +5 more
doaj   +1 more source

Variational description of the positive column with two-stem ionization [PDF]

The ionization balance in diffusion dominated discharges which depends on both one and two step ionization processes is considered. The Spenke diffusion equation (D sq delta n + neutrino n + sq kn =0) describing such conditions is solved by the Rayleigh ...
Crawford, F. W.
core   +1 more source

Prediction of Time Domain Vibro-Acoustic Response of Conical Shells Using Jacobi–Ritz Boundary Element Method

Acoustics
Considering the lack of studies on the transient vibro-acoustic properties of conical shell structures, a Jacobi–Ritz boundary element method for forced vibro-acoustic behaviors of structure is proposed based on the Newmark-β integral method and the ...
Cong Gao, Jiajun Zheng, Fuzhen Pang, Jiawei Xu, Haichao Li, Jibing Yan   +5 more
doaj   +1 more source

Buckling Behavior of Nanobeams Placed in Electromagnetic Field Using Shifted Chebyshev Polynomials-Based Rayleigh-Ritz Method. [PDF]

Nanomaterials (Basel), 2019
Jena SK, Chakraverty S, Tornabene F.
europepmc   +1 more source