Results 21 to 30 of about 5,327,411 (195)

Proposal and effectiveness verification of rail adjustment optimization method for elevator installation

open access: yesNihon Kikai Gakkai ronbunshu, 2023
In the installation process of an elevator, work performs to correct the bending of the rail in order to suppress the lateral vibration of the car due to the irregularity of the guide rail.
Yutaka MARUYAMA   +3 more
doaj   +1 more source

The Effect of Vibro-Activation Time on the Properties of Highly Active Calcium Hydroxide

open access: yesBuildings, 2020
The results of studying the effect of the vibration processing time on the size of calcium hydroxide particles are given. The physicochemical processes affecting the size and morphology of calcium hydroxide particles have been studied.
Yaroslav Yakymechko   +4 more
doaj   +1 more source

Nodal diameter vibration identification of coated blisk under traveling wave excitation

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2021
It is seen that blisk will be in a nodal diameter vibration state under the engine order excitation, which can be simulated by traveling wave excitation.
Jin Wang, Wei Sun, Kunpeng Xu
doaj   +1 more source

Vibration Response Characteristics of the Cross Tunnel Structure

open access: yesShock and Vibration, 2016
It is well known that the tunnel structure will lose its function under the long-term repeated function of the vibration effect. A prime example is the Xi’an cross tunnel structure (CTS) of Metro Line 2 and the Yongningmen tunnel, where the vibration ...
Jinxing Lai   +5 more
doaj   +1 more source

Determination of Period of RC Buildings by the Ambient Vibration Method

open access: yesAdvances in Civil Engineering, 2019
Determining the dynamic properties of structures is important for understanding their seismic behaviour. Ambient vibration signal measurement is one of the approaches used to determine the period of structures.
Mehmet Inel   +2 more
doaj   +1 more source

Los guantes antivibratorios: ¿une avenida de prevención eficaz y aplicable?

open access: yesLaboreal, 2016
Wearing anti-vibration gloves is one of preventive measures recommended to reduce exposure to hand-arm vibration. But what do we know about the effectiveness of these anti-vibration gloves and about the workers’ acceptance? One literature review has been
Alice Turcot, Michel Lehoux
doaj   +1 more source

Moment Taşıyan Çelik Çerçeveli Sistemlerin Titreşim Periyotları ve Deprem Yüklerinin Belirlenmesi Üzerine Bir İrdeleme

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2015
Bilindiği gibi taşıyıcı sistemlerin yatay deprem kuvvetlerinin bulunmasında en önemli parametre, sıfır sönüm oranında elastik sınırlar içerisinde kalmak kaydı ile serbest titreşim periyotlarını ve özellikle birinci doğal titreşim periyodunu bulmaktır ...
Ahmet Polat
doaj   +2 more sources

Tunable vibration energy harvester [PDF]

open access: yes, 2013
Machinery condition monitoring is an established application for wireless sensor networks and energy harvesting technologies. However, vibration energy harvesters are generally applicable only to fixed-frequency vibration sources, as commercial vibration
Geoff V. Merrett   +9 more
core   +1 more source

Relation between vibrotactile perception thresholds and reductions in finger blood flow induced by vibration of the hand at frequencies in the range 8–250 Hz [PDF]

open access: yes, 2014
Purpose: this study investigated how the vasoconstriction induced by vibration depends on the frequency of vibration when the vibration magnitude is defined by individual thresholds for perceiving vibration [i.e.
Ye, Ying, Griffin, Michael J.
core   +1 more source

Homogenization of vibrating periodic lattice structures

open access: yesApplied Mathematical Modelling, 2005
The paper describes a homogenization technique for periodic lattice structures. The analysis is performed by considering the irreducible unit cell as a building block that defines the periodic pattern. In particular, the continuum equivalent representation for the discrete structure is sought with the objective of retaining information regarding the ...
Gonella, Stefano, Ruzzene, Massimo
openaire   +2 more sources

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