Results 51 to 60 of about 69,675 (212)

Strategies for increasing the operating frequency range of vibration energy harvesters: a review

, 2010
This paper reviews possible strategies to increase the operational frequency range of vibration-based micro-generators. Most vibration-based micro-generators are spring-mass-damper systems which generate maximum power when the resonant frequency of the ...
Beeby, Steve, Zhu, Dibin, Tudor, John
core   +1 more source

Free Vibration Analysis of Continuous Systems

, 2021
Structures analysed so far have been treated as discrete systems. Structures have been idealised, and for convenience of computation, simplifying assumptions have been introduced and as such results obtained can only be treated as approximate.
openaire   +1 more source

Vibration serviceability of long-span cast in-situ concrete floors. [PDF]

, 1999
This thesis describes an investigation into the vibration serviceability of long-span and slender in-situ concrete floors, which are typically post-tensioned.
Pavic, Aleksandar, Pavic, A.
core  

Vibration suppression for strings with distributed loading using spatial cross-section modulation [PDF]

, 2015
A problem of vibration suppression in any preassigned region of a bounded structure subjected to action of an external time-periodic load which is distributed over its domain is considered.
Sorokin, Vladislav, Thomsen, JJ, Thomsen, Jon Juel   +2 more
core   +1 more source

Research on Embedded Track System Vibration Transmission

Chengshi guidao jiaotong yanjiu
Objective Embedded tracks have relatively high damping, providing good vibration and noise reduction performance. Therefore, it is necessary to study the vibration reduction mechanism of embedded track system.
YANG Gang, HE Yuanpeng, HAN Jian, LUO Xinwei, ZHANG Zhixin, HE Kuang   +5 more
doaj   +1 more source

Feasibility Study of the Electromagnetic Damper for Cable Structures Using Real-Time Hybrid Simulation

Sensors, 2017
Cable structure is a major component of long-span bridges, such as cable-stayed and suspension bridges, and it transfers the main loads of bridges to the pylons. As these cable structures are exposed to continuous external loads, such as vehicle and wind
Ho-Yeon Jung, In-Ho Kim, Hyung-Jo Jung
doaj   +1 more source

Time-Frequency Analysis of Systems with Changing Dynamic Properties [PDF]

, 2006
The Wigner-Ville Distribution, and related refinements, represent a class of advanced time-frequency analysis tools that are distinguished from Fourier and wavelet methods by an increase in resolution in the time frequency plane. Time-frequency analysis
Bradford, Samuel Case, V, Bradford, Samuel Case   +1 more
core   +1 more source

Frequency domain iterative tuning for active noise and vibration control [PDF]

, 2008
In this thesis a new adaptive control method, called Iterative Tuning in the Frequency Domain (FD-IT), is proposed for Active Noise and Vibration Control (ANVC).
Luo, Jian
core  

Active Vibration Control of a Multi-Degree-of-Freedom System via Twin Rotor Damper

, 2022
The twin rotor damper (TRD), an active mass damping device, is used for the vibration control of a multi-degree-of-freedom (MDOF) system of oscillators. A single TRD unit consists of two eccentric control masses rotating about two parallel axes.
Terrill, Richard, Starossek, Uwe
core  

Experimental and Numerical Study on Dynamic Response of High-Pier Ballastless Continuous Beam Bridge in Mountainous Area

Applied Sciences
The dynamic performance of a ballastless track on bridges affects the vibration performance of the vehicle–bridge coupling system, which, in turn, will affect safety, the smoothness of operating trains, and passenger comfort.
Wenshuo Liu, Qiong Luo, Gonglian Dai, Xin Tang   +3 more
doaj   +1 more source