Results 21 to 30 of about 4,496,925 (290)
Global attractors of the 3D micropolar equations with damping term
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xiaojie Yang, Hui Liu, Chengfeng Sun
openaire +2 more sources
On solutions of quasilinear wave equations with nonlinear damping terms [PDF]
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Park, Jong Yeoul, Bae, Jeong Ja
openaire +2 more sources
On the interaction of exponential non-viscous damping with symmetric nonlinearities [PDF]
This paper studies the interaction between non-viscous damping and nonlinearities for nonlinear oscillators with reflection symmetry. The non-viscous damping function is an exponential damping model which adds a decaying memory property to the damping ...
Wagg, DJ +6 more
core +1 more source
Nonlinear Wave Equations With Degenerate Damping and Source Terms [PDF]
In this article we focus on the global well-posedness of the differential equation u t
Barbu, Viorel +2 more
openaire +2 more sources
Oscillation of third order differential equation with damping term [PDF]
The authors study the third-order nonlinear differential equation \[ x'''(t)+q(t)x'(t)+r(t)| x(t)|^\lambda\operatorname{sgn}x(t)=0, \] where \(\lambda>0\), \(q\in C^2(\mathbb{R}_+)\) and \(r\in C^2(\mathbb{R}_+)\) are positive functions. The authors derive sufficient conditions which guarantee several special asymptotic properties of solutions, such as
Bartušek, Miroslav, Došlá, Zuzana
openaire +2 more sources
Effects of Damping and Reynolds Number on Vortex-Induced Vibrations [PDF]
Vortex-induced vibrations have been studied experimentally with emphasis on damping and Reynolds number effects. Our system was an elastically-mounted rigid circular cylinder, free to oscillate only transverse to the flow direction, with very low ...
Klamo, Joseph Thomas
core +1 more source
Auto-Tuning PID Controllers in Terms of Relative Damping [PDF]
Abstract In this paper a new auto-tuning method of PID controller is proposed. It combines: modelling of the closed-loop system, modelling of the process, and tuning formulas in terms of the relative damping of the transient response to setpoint changes.
González López, Antonio +2 more
openaire +2 more sources
Decay property of solutions for damped wave equations with space–time dependent damping term
There is discussed asymptotic behavior of a solution to the Cauchy problem for the equation \[ u_{tt}-\Delta u+b_{0}(1+| x| ^{2})^{-\alpha /2}(1+t)^{-\beta}u_{t}+| u| ^{\rho -1}u=0,\text{ where } t>0,\, x\in \mathbb {R}^{N},\, b_{0}>0,\, \alpha ,\beta \geq 0, \, \alpha +\beta \in [0,1) \] and the initial data are in a weighted energy spaces.
Lin, Jiayun +2 more
openaire +2 more sources
Low frequency damping of metal panels in ambient Air [PDF]
Mathematical models of structural dynamics are widely used and applied in many branches of science and engineering and it has been argued that many of the shortfalls with these models are due to the fact that the physics of joint dynamics are not ...
Paul Cunningham (1251771) +8 more
core +1 more source
On solutions of nondegenerate wave equations with nonlinear damping terms
Let $\Omega $ be a bounded domain in $\Bbb R^N$ with smooth boundary $\partial \Omega$. In this paper, we consider the existence and energy decay of solutions of the following problem: \begin{align} & u_{tt}(t,x)-(a+b (\|\nabla u(t,x)\|_2^2+\|\nabla v(t,x)\|_2^2)^\gamma) \Delta u(t,x)+\beta \Delta^2 u(t,x) \nonumber \\ & \quad+\delta|u_t(t,x)|^{\rho ...
Park, Jong Yeoul, Bae, Jeong Ja
openaire +3 more sources

