Results 31 to 40 of about 175 (144)

Research on One-to-Two Internal Resonance of Sling and Beam of Suspension Sling–Beam System

Buildings, 2023
An approach is presented to investigate the 1:2 internal resonance of the sling and beam of a suspension sling–beam system. The beam was taken as the geometrically linear Euler beam, and the sling was considered to be geometrically nonlinear. The dynamic
Lixiong Gu, Chunguang Dong, Yi Zhang, Xiaoxia Zhen, Guiyuan Liu, Jianyi Ji   +5 more
doaj   +1 more source

The fractional d'Alembert's formulas

Journal of Functional Analysis, 2019
In this paper we develop generalized d'Alembert's formulas for abstract fractional integro-differential equations and fractional differential equations on Banach spaces. Some examples are given to illustrate our abstract results, and the probability interpretation of these fractional d'Alembert's formulas are also given.
Li, Cheng-Gang, Li, Miao, Piskarev, Sergey, Meerschaert, Mark M.   +3 more
openaire   +3 more sources

Initial Value Problems for System of Wave Equations

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2009
We present solutions to the Cauchy problem and the Goursat problem for system of wave equations. Discharged analogue d'Alembert formula for system of wave equations.
S. V. Leksina
doaj   +1 more source

A d’Alembert Formula for Hopf Hypersurfaces [PDF]

Results in Mathematics, 2011
A Hopf hypersurface in complex hyperbolic space CH^n is one in which the complex structure applied to the normal vector is a principal direction at each point. In this paper, Hopf hypersurfaces for which the corresponding principal curvature is small (relative to the ambient sectional curvature) are studied by means of a generalized Gauss map into a ...
openaire   +2 more sources

Exact noise cancellation for 1D-acoustic propagation systems

, 2022
International audienceThis paper deals with active noise control applied to a one-dimensional acoustic propagation system. The aim here is to keep over time a zero noise level at a given point.
Lohéac, Jérôme, Boultifat, Chaouki Nacer Eddine, Yagoubi, Mohamed, Chevrel, Philippe   +3 more
core   +1 more source

To the question of a multipoint mixed boundary value problem for a wave equation

, 2019
It is well known that some problems in mechanics and physics lead to partial differential equations of the hyperbolic type. A classical example of the hyperbolic type is wave equation. When posed, the task sometimes lacks the classical boundary condition
Tokmagambetov, Niyaz, Bekbolat, Bayan, Kanguzhin, B.   +2 more
core   +1 more source

Nonlinear Vibration Characteristic Analysis of Electric Vehicle–Road Coupling System

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In‐wheel motor drive is the developing direction of automobile electrification and intelligence. However, the increased unsprung mass in in‐wheel motor‐driven electric vehicles (IWMEVs) leads to higher dynamic tire loads, thereby intensifying vehicle–road coupling interactions. To address this problem, an 11‐degree‐of‐freedom nonlinear dynamic
Guizhen Feng, Shaohua Li, Xuewei Wang
wiley   +1 more source

Mixed Super‐Circles

Computer Graphics Forum, EarlyView.
Abstract We introduce mixed super‐circles, a position‐curvature formulation of the original dynamic 2D super‐helix model. Compared to the latter, purely curvature‐based model – the so‐called chained formulation –, the mixed formulation that we propose here drastically reduces the algorithmic complexity of the solving scheme – from quadratic to quasi ...
Emile Hohnadel, Thibaut Métivet, Florence Bertails‐Descoubes   +2 more
wiley   +1 more source

On the Četaev Condition for Nonholonomic Systems

AppliedMath
In the context of holonomic systems, the identification of virtual displacements is clear and consolidated. This provides the possibility, once the class of displacements have been coupled with Newton’s equations, for us to write the correct equations of
Federico Talamucci
doaj   +1 more source

Topographical Features of the Lunar Surface Unveiled Through Spherical Geodesic Triangulation Analysis Method of DEM Roughness at Equal Spatial Scales

Earth and Space Science, Volume 13, Issue 4, April 2026.
Abstract This study introduces an innovative method using equal spherical geodesic triangulation to uniformly sample the digital elevation model (DEM) of the lunar surface, ensuring an even distribution of elevation data. Utilizing spherical spline fitting, we have proposed new methods for calculating slope angles and aspects. An equilateral triangular
Zhengfeng Zhang, Lei Chen, Huai Zhang, Yaolin Shi   +3 more
wiley   +1 more source