Results 11 to 20 of about 103,104 (262)

Validity of Galerkin Method at Beam’s Nonlinear Vibrations of the Single Mode with the Initial Curvature

open access: yesBuildings, 2023
A common strategy for studying the nonlinear vibrations of beams is to discretize the nonlinear partial differential equation into a nonlinear ordinary differential equation or equations through the Galerkin method.
Yunbo Zhang, Kun Huang, Wei Xu
doaj   +3 more sources

Apparent stiffening of a graphene nanomembrane with initial curvature [PDF]

open access: yesAIP Advances, 2017
A model is developed for bending of a suspended nanomembrane with account for interaction between in-plane and out-of-plane deformation modes. It is shown that the maximum deflection of an initially flat nanomembrane exceeds strongly that of the ...
A. D. Drozdov   +1 more
doaj   +2 more sources

Aeroelastic stability analysis of aircraft wings with initial curvature [PDF]

open access: yesAerospace Science and Technology, 2020
Abstract In this study, the aeroelastic instability of a wing with an initial out-of-plane curvature is determined. The structural dynamics of the wing is modelled by using the geometrically exact beam equations, and the aerodynamic loads are determined using an incompressible unsteady aerodynamic model.
H Haddad Khodaparast   +2 more
exaly   +3 more sources

Effect of Constraint and Crack Contact Closure on Fatigue Crack Mechanical Behavior of Specimen under Negative Loading Ratio by Finite Element Method

open access: yesMetals, 2022
Mechanical behaviors at fatigue crack tips of cracked specimens under negative loading ratios are studied in detail by the finite element method in this paper.
Xinting Miao   +4 more
doaj   +1 more source

Pure-Bend and Over-Bend Straightening Theory for In-Plane Curved Beams with Symmetrical Section and Straightening Mechanism Analysis

open access: yesMetals, 2022
Straightening is an important process in the production and application of shafts, tubes, and various profiles. According to the springback theory of small curvature plane bending, the pure bending process and springback of in-plane curved beam with ...
Chunge Wang   +3 more
doaj   +1 more source

A Method Based on Curvature and Hierarchical Strategy for Dynamic Point Cloud Compression in Augmented and Virtual Reality System

open access: yesSensors, 2022
As a kind of information-intensive 3D representation, point cloud rapidly develops in immersive applications, which has also sparked new attention in point cloud compression. The most popular dynamic methods ignore the characteristics of point clouds and
Siyang Yu   +4 more
doaj   +1 more source

Motion by crystalline-like mean curvature: A survey

open access: yesBulletin of Mathematical Sciences, 2022
We consider a class of anisotropic curvature flows called crystalline curvature flows. We present a survey on this class of flows with special emphasis on the well-posedness of its initial value problem.
Yoshikazu Giga, Norbert Požár
doaj   +1 more source

Path Planning Optimization for Driverless Vehicle in Parallel Parking Integrating Radial Basis Function Neural Network

open access: yesApplied Sciences, 2021
To optimize performances such as continuous curvature, safety, and satisfying curvature constraints of the initial planning path for driverless vehicles in parallel parking, a novel method is proposed to train control points of the Bézier curve using the
Leiyan Yu   +5 more
doaj   +1 more source

Ricci-Bourguignon flow on an open surface [PDF]

open access: yesJournal of Mahani Mathematical Research, 2023
In this paper, we investigate the normalized Ricci-Bourguignon flow with incomplete initial metric on an open surface. We show that such a flow converges exponentially to a metric with constant Gaussian curvature if the initial metric is suitable.
Shahroud Azami
doaj   +1 more source

Methods of creating prestress in span structures and features of their calculation.

open access: yesTrudy Odesskogo Politehničeskogo Universiteta
The topic of the work is related to the possibility of investigating the influence of the curvature of a prestressed crane bridge on its bearing capacity.
Ігор Валентинович Прокопович   +3 more
doaj   +5 more sources

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