Results 31 to 40 of about 3,272,554 (299)

Dynamic absorber for self-excred system with distributed parameters (vibrating string)

open access: yesVietnam Journal of Mechanics, 1985
The dynamic absorber may be used to damp the self - excited vibration or the string. The friction mechanism of absorber (λ) has decisive influence on the amplitude of self-exerted vibration of the string. For the strong dynamic absorber the increasing
Nguyen Van Dao
doaj   +1 more source

Control of vibration by using dynamic vibration absorber

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract Vibration is one of the most important problems that engineering systems and suspension systems which negatively affected the performance of the system as it leads to energy loss, equipment damage, mechanical parts erosion, low product cost and quality.
R S Ahmed, K A. Atiyah, I A. Abdulsahib
openaire   +1 more source

Design and Mechanical Properties Test of Double Dynamic Vibration Absorber forHigh-temperature Pipelines [PDF]

open access: yesZhengzhou Daxue xuebao. Gongxue ban
In view of the fact that it was difficult to solve the problem of irregular vibration of small and mediumsized branch pipes in nuclear power units with traditional vibration damping supports, a circular double three-waydynamic vibration absorber based ...
BAI Hongbai   +3 more
doaj   +1 more source

FLEXURAL VIBRATION CONTROL OF BEAM USING ROTATIONAL DYNAMIC VIBRATION ABSORBERS

open access: yesJixie qiangdu, 2021
In this paper,the characteristics of flexural vibration suppression of a beam using rotational dynamic vibration absorbers are studied. Vibration equations of the beam carrying rotational dynamic vibration absorbers are established using the spectral ...
ZHU XueZhi, WANG KeXiao, LI WenLong
doaj  

Parameter optimization of a grounded dynamic vibration absorber with lever and inerter

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2022
Mechanical vibration is mostly harmful, and it may not only generate noise but also affect the working life of the equipment. Lever, inerter, and grounded stiffness have good performance in the field of vibration control, but the dynamic vibration ...
Aimei Shi, Yongjun Shen, Junfeng Wang
doaj   +1 more source

Study on suppressing of stick-slip using dynamic vibration absorber

open access: yesNihon Kikai Gakkai ronbunshu, 2019
This study discussed design criteria for suppressing stick-slip using dynamic vibration absorber. First, a simplified analytical model that can quantify the effect of the dynamic vibration absorber on the occurrence and nonoccurrence conditions of stick ...
Satoru MAEGAWA, Fumihiro ITOIGAWA
doaj   +1 more source

Active vibration isolation using an electrical damper or an electrical dynamic absorber

open access: yes, 2008
This paper describes a theoretical and experimental study to show how an electrical damper or an electrical dynamic absorber, implemented using an electromagnetic actuator and an accelerometer, can control vibration transmission through a vibration ...
Pietrzko, S.   +2 more
core   +1 more source

H-infinity optimization of a variant design of the dynamic vibration absorber : revisited and new results [PDF]

open access: yes, 2011
The H∞ optimum parameters of a dynamic vibration absorber (DVA) with ground-support are derived to minimize the resonant vibration amplitude of a single degree-of-freedom (sdof) system under harmonic force excitation.
Wong, WO   +3 more
core   +1 more source

Evaluation of dynamic absorber to suppress subharmonic nonlinear vibration in car powertrain

open access: yesMechanical Engineering Journal, 2015
This paper analyzed the suppression method of the nonlinear vibration called subharmonic vibration of order 1/2 in the car powertrain by using a dynamic absorber.
Sofian ROSBI   +6 more
doaj   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

open access: yesFEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj   +3 more
wiley   +1 more source

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