Boundary analysis

This study introduces a novel Ritz approximation function to analyze the free vibrations of laminated composite shallow curved beams. The methodology utilizes polynomial functions-based Fibonacci series to develop the Ritz’s approximation function. The displacement field aligns with the high-order shear deformation theory designed explicitly for shallow curved beams.

18p viyoko 01-10-2024 5 1   Download

This paper presents an efficient and accurate numerical technique based upon the scaled boundary finite element method for the analysis of two-dimensional, linear, second-order, boundary value problems with the domain completely described by a circular defining curve.

11p vifilm 24-09-2024 4 1   Download

This article presents a number of specific analysis cases, taking into account geological conditions and boundary conditions, and from that, raising a number of issues to note when using numerical methods.

8p vifilm 24-09-2024 5 1   Download

The scaled boundary finite element method (SBFEM) is a semi-analytical method, whose versatility, accuracy, and efficiency are not only equal to, but potentially better than the finite element method and the boundary element method for certain problems. This paper investigates the possibility of using an efficient high-order polynomial element in the SBFEM to form the approximation in the circumferential direction.

14p vifilm 24-09-2024 4 1   Download

In this study, the Ritz variational method is used to analyze and solve the bending problem of rectangular functionally graded material plate with general boundary conditions and subject to some types of load distribution over the entire plate domain. Based on the Kirchoff plate theory, the equilibrium equations are obtained by minimizing the total potential energy.

12p viyoko 24-09-2024 2 1   Download

This thesis is intended to give a sustained insight into the creative output, aims and motivations of Karl Lagerfeld, the contemporary French fashion designer. This investigation and cultural and artistic analysis will, of necessity, traverse many areas of inquiry and will tend to freely cross traditional and academic boundaries of thought and ideas. This is considered not only desirable, but essential, to give fuller credence to the various phenomena of the Lagerfeld empire.

196p runordie3 06-07-2022 8 4   Download

In this paper, the author uses the forced displacement method combined with the finite element method to study the free vibration of the bar with different boundary conditions with considering the influence of the shear strain, the theory used here is the full beam theory.

10p visherylsandber 04-07-2022 19 3   Download

The investigation of magnetic field strength variations over subterranean layers may reveal their locations on Earth’s surface and provide physical and geometrical characteristics. Magnetic studies were carried out around Gölcük caldera lake using proton magnetometers to identify subsurface volcanic structures. The acquired data were inverted using four different edge detection algorithms such as analytic signal, tilt angle, theta map, horizontal gradient. Afterwards, the results were used to determine the locations of the anomalous structures.

17p tanmocphong 29-01-2022 14 1   Download

Objectives of the thesis: The literature review on the behaviours of composite beams shows that Ritz method is efficient to analyse the behaviours of composite beams with various boundary conditions, however, the number of researches used this method is still limited.

203p monsterhunterer 20-06-2021 7 2   Download

This paper presents a numerical solution for vibration analysis of cantilevered non-uniform trapezoidal thick plates. Based on the first shear deformation theory, kinetic and strain energies of the plate are derived and using Hamilton's principle, governing equations and boundary conditions are derived.

22p tohitohi 19-05-2020 19 1   Download

This paper presents a numerical analysis of free vibration of thin circular and annular plate using finite element method. The first five natural frequencies are presented for uniform annular plates of various inner-to-outer radius ratios, with nine possible combinations of free, clamped and simply supported boundary conditions at the inner and outer edges of plates.

8p tohitohi 19-05-2020 30 2   Download

In this paper free vibration analysis of eccentric and concentric stiffened isotropic plate with central stiffener and double stiffener has been studied and effect of various parameters such as boundary conditions, aspect ratio on non-dimensional frequency parameter of plate are investigated.

12p tohitohi 19-05-2020 14 0   Download

Semi-submersible drilling platforms are huge bulk structures for extracting the oil products from great depth of seas. For such bulk structures, the Morrison’s equations are no longer valid for determining the loads applied to the semi-submersible drilling platforms.

8p tohitohi 19-05-2020 11 0   Download

Research objectives: Using boundary integral observations or observations on a part of the boundary instead of point-wise observations are new approaches to setting the inverse problem and have physical and practical meanings.

27p change03 06-05-2016 47 6   Download

The complete coding sequence of a BDIX rat gene homo-logous to the human ABO gene was determined. Identifi-cation of the exon–intron boundaries, obtained by comparison of the coding sequence with rat genomic sequences from data banks, revealed that the rat gene structure is identical to that of the human ABO gene. It localizes to rat chromosome 3 (q11-q12), a region homolo-gous to human 9q34.

8p research12 23-04-2013 39 2   Download

SOCS3 is a negative regulator of cytokine signalling that inhibits Janus kinase-signal transduction and activator of transcription (JAK-STAT) mediated signal tranduction by binding to phosphorylated tyrosine residues on intracellular subunits of various cytokine receptors, as well as possibly the JAK proteins.

11p dell39 27-03-2013 41 5   Download

A chilly, but still very attractive, Asilomar hosted the seventh edition of the Critical Assessment of Protein Structure Prediction Experiment (CASP) [1]. A few months ago, 96 protein sequences of unknown, but soon to be determined structure, were distributed to more than 250 groups, whose task was to predict their structure and a number of other fea-tures, such as their domain boundaries, the presence of disordered regions, contacts between specific amino acids and their molecular function.

4p galaxyss3 21-03-2013 46 4   Download

Let X = G/K be a homogeneous Riemannian manifold where G is the identity component of its isometry group. A C ∞ function F on X is harmonic if it is annihilated by every element of DG (X), the algebra of all G-invariant differential operators without constant term. One of the most beautiful results in the harmonic analysis of symmetric spaces is the Helgason conjecture, which states that on a Riemannian symmetric space of noncompact type, a function is harmonic if and only if it is the Poisson integral of a hyperfunction over the Furstenberg boundary G/Po where...

59p tuanloccuoi 04-01-2013 55 7   Download

Gần đây có rất nhiều lọai công trình biển khác nhau được xây dựng trên một nhóm cọc như là cột tròn. Vì thế sự tương tác giữa sóng và một nhóm cột tròn cần được nghiên cứu một cách chính xác để đánh giá sự ổn định của công trình Có rất nhiều nhà nghiên cứu và công trình nghiên cứu về sự tương tác giữa sóng và một nhóm cột như là: - Chakrabarti (1978) và Ohkusu (1974) – phân tích về lực của sóng lên một nhóm cột - Kim và Park (2007)- phân tích về lực của sóng lên một cột tròn riêng...

29p suatuoi_vinamilk 12-07-2011 75 6   Download

Spheroidal wave functions are special functions in mathematical physics which have found many important and practical applications in science and engineering where the prolate or the oblate spheroidal coordinate system is used. In the evaluation of electromagnetic (EM) fields in spheroidal structures, spheroidal wave functions are frequently encountered, especially when boundary value problems in spheroidal structures are solved using full-wave analysis.

11p tienvovan 11-09-2010 81 9   Download