Results 301 to 310 of about 191,827 (344)

New Methods for Nonlinear Damping Identification of Damping Alloy

Journal of Vibration and Acoustics, 2007
This paper presents two methods for the identification of nonlinear internal damping of alloy. One is the moving autoregressive model (MARM) method, and the other is the time-varying autoregressive model (TVARM) method. These procedures have been successfully implemented on two numerical examples. Comparison between simulation results demonstrates that
Ziying Wu, Hongzhao Liu, Lilan Liu, Daning Yuan   +3 more
openaire   +1 more source

Linear and Nonlinear Damping

2015
In this chapter we consider the effects of linear and nonlinear absorption (damping) on collapsing solutions.
openaire   +1 more source

Nonlinear Electromagnetic Shunt Damping for Nonlinear Vibration Isolators

IEEE/ASME Transactions on Mechatronics, 2019
This paper presents the concept of nonlinear electromagnetic shunt damping (N-EMSD) and employs it for the vibration isolation enhancement of nonlinear vibration isolators. A nonlinear electromagnetic vibration isolator (NEVI) is designed. Two configurations of the permanent magnets and coils are constructed to illustrate the damping mechanisms of ...
Bo Yan, Hongye Ma, Wenguang Zheng, Bin Jian, Ke Wang, Chuanyu Wu   +5 more
openaire   +1 more source

Nonlinear Damping of Limb Motion

1990
The muscle-reflex mechanisms form a feedback system called the motor servo (Houk and Rymer, 1981; Gielen and Houk, 1987), which consists of a muscle, its spindle receptors, and the corresponding reflex pathways back to the muscle. This neuromuscular system mediates the stretch and unloading reflex of the muscle by the feedback. Motivated by a desire to
Chi-haur Wu, James C. Houk, Kuu-Young Young, Lee E. Miller   +3 more
openaire   +1 more source

Nonlinear Damping Amplifier Friction Bearings

Journal of Vibration and Acoustics
Abstract This article introduces damping amplifiers integrated into the core material of conventional nonlinear friction base isolators to improve their vibration attenuation capabilities and mitigate their shortcomings. Four new types of damping amplifier friction bearings are introduced: levered, nested, compound, and damping.
Sudip Chowdhury, Sondipon Adhikari
openaire   +1 more source

Damping Nonlinearities and Transient Inputs

The Journal of the Acoustical Society of America, 1969
Damping is generally considered to be linear in the mathematical analysis of lumped parameter systems by their associated modal equations of motion. Considering all sources of damping, the damping force should be represented by both linear and nonlinear functions of the modal displacement and velocity and/or a hysteresis curve.
openaire   +1 more source

Nonlinear performance of classical damping

Earthquake Engineering and Engineering Vibration, 2013
The performance of a classical damping matrix, constructed either from the use of initial structural properties or current structural properties, in the step-by-step solution of a nonlinear multiple degree of freedom (MDOF) system is analytically evaluated. The analytical results are confirmed by numerical examples.
openaire   +1 more source

Nonlinear Damping Losses in YIG

Journal of Applied Physics, 1961
High-power ferromagnetic resonance in a flat plate has a small component of the precession parallel to the applied dc field. This component causes frequency doubling and also coherent amplification of some scattered spin waves. These spin waves then cause a linear damping of the parallel component of the precession, which in turn causes a nonlinear ...
openaire   +1 more source

LANDAU DAMPING IN NONLINEAR SCHRÖDINGER EQUATIONS

Quantum Aspects of Beam Physics, 2002
R Fedele, S De Nicola, VG Vaccaro, D Anderson, M Lisak   +4 more
openaire   +3 more sources

Modeling of nonlinear damping

2023
Pramod Kumar, S.P. Singh, Sumit Sharma
openaire   +1 more source