Results 1 to 10 of about 126,696 (263)

Longitudinal dynamic behavior study of a vibrating rod connected through an elastic nonlinear single degree freedom coupler

open access: yesScientific Reports
This research explores the efficacy of integrating nonlinear single-degree-of-freedom systems in the vibration control of rod coupling systems. By interlinking two rods with a nonlinear single-degree-of-freedom system as the intermediary, the study ...
Mingfei Chen, Sheng Li, Haijian Cui
doaj   +2 more sources

Critical response of a single-degree-of-freedom system with bilinear hysteresis and viscous damping under triple impulse

open access: yesFrontiers in Built Environment
A triple impulse is used as a mathematical model of forward-directivity inputs, which are fault-normal components of near-fault earthquake ground motions. In this paper, two types of the triple impulse input are employed.
Kotaro Kojima, Izuru Takewaki
doaj   +3 more sources

Simplified Estimation Method of Plastic Energy Dissipation for MDOF Systems Using Force Analogy Method

open access: yesBuildings, 2023
Plastic energy dissipation is a key factor in the response of inelastic structures subjected to seismic input, and is often regarded as a primary source of structural damage due to the inelastic deformation of structural components. Accurately predicting
Yingna Mu, Jiting Qu, Yu Shu, Yanbin Tan
doaj   +1 more source

Analysis of the mechanical vibrations of a complex structure as a damped single degree of freedom system

open access: yesMemoria Investigaciones en Ingeniería, 2022
The use of finite element method software allows the modal and spectral analysis of complex structures with an accessible computational cost. In contrast, with the theory of damped systems of a degree of freedom, solutions can be obtained analytically ...
Fernando Sánchez-Sarmiento   +1 more
doaj   +1 more source

Dynamic response of a piecewise linear single-degree-of-freedom oscillator with fractional-order derivative

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2021
In this paper, the dynamic response of a piecewise linear single-degree-of-freedom oscillator with fractional-order derivative is studied. First, a mathematical model of the single-degree-of-freedom system is established, and the approximate steady-state
Jun Wang   +5 more
doaj   +1 more source

Vibration Control Using Vibration Energy Transmissibility of Two-Degree-of-Freedom System

open access: yesNihon Kikai Gakkai ronbunshu, 2023
This study focuses on the energy transmissibility, which is called coupling loss factor (CLF) in Statistical Energy Analysis (SEA) framework, for two degree of freedom vibration system.
Toru YAMAZAKI   +3 more
doaj   +1 more source

Modeling impact damper in building frames using GAP element [PDF]

open access: yesJournal of Structural and Construction Engineering, 2017
Main effective factor in impact dampers to control vibration is to create disruption in structural oscillation amplitude using small forces induced by auxiliary masses to reduce strong vibrations.
Seyed Mehdi Zahrai, Alireza Heisami
doaj   +1 more source

Relationship between the reciprocity of transfer functions for mechanical vibration systems and optimal design formulas of dynamic vibration absorbers

open access: yesMechanical Engineering Journal, 2022
Transfer functions are often employed to evaluate the vibration characteristics of mechanical and electrical systems. Within a group of transfer functions, some particular ones have the property that swapping the coefficients of the two terms in the ...
Toshihiko ASAMI
doaj   +1 more source

Necessary conditions for optimality of exponentially damped oscillators

open access: yes上海师范大学学报. 自然科学版, 2023
In this paper, the optimal control problem of the single-input multi-variable system is designed. The dynamic constraints are the n-order exponentially damped oscillators, and the necessary conditions for the optimality of the exponentially damped ...
XIU Guozhong, WANG Liying, SHI Bao
doaj   +1 more source

Damping mechanisms of vibration reduction system with granular materials for vibration system with high natural frequency (Proposal of “relative motion mass”, “rotating mass”, and their consideration)

open access: yesNihon Kikai Gakkai ronbunshu, 2017
We investigated the damping mechanism of a granular material damping system applied to reducing vibration in structures that have a high natural frequency and small vibration displacement. Experiments were conducted under several conditions of total mass
Tomoko KOGA   +3 more
doaj   +1 more source

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