Results 41 to 50 of about 4,744 (161)

Development of Rocking Isolation for Response Mitigation of Elevated Water Tanks under Seismic and Wind Hazards

Shock and Vibration, 2020
Elevated water tanks are categorized as strategic components of water supply systems in modern urban management. Past earthquake events have revealed the high vulnerability of these structures. This paper investigates the development of rocking isolation
Hassan Alemzadeh, Hamzeh Shakib, Mohammad Khanmohammadi   +2 more
doaj   +1 more source

A Unified Winkler Model for Vertical and Lateral Dynamic Analysis of Tapered Piles in Layered Soils in the Frequency Domain

Buildings
Tapered piles are a new type of pile foundation known for their simple construction and high bearing capacity, commonly used in railway, highway, or building foundation treatment.
Qiangqiang Shua, Huanliang Xu, Wenbo Tu, Mingkang Li, Ningzhuo Shi   +4 more
doaj   +1 more source

Support Loss and Q Factor Enhancement for a Rocking Mass Microgyroscope

Sensors, 2011
A rocking mass gyroscope (RMG) is a kind of vibrating mass gyroscope with high sensitivity, whose driving mode and sensing mode are completely uniform.
Zhihua Chen, Xuezhong Wu, Xiong Wang, Zelong Zhou, Dingbang Xiao, Shengyi Li   +5 more
doaj   +1 more source

Improving accurate vibration periods and responses of a rigid rod model

Alexandria Engineering Journal, 2018
In this paper, we construct a residue harmonic balance solution procedure to improve the accuracy of approximate vibration period and steady response for a strongly nonlinear oscillator from the motion of rigid rod rocking back and forth on a circular ...
Zhongjin Guo, Lili Xia, Wei Zhang
doaj   +1 more source

CALCULATED VIBRATION FREQUENCIES AND IR ABSORPTION INTENSITIES OF [6] CYCLACENE (CHIRAL) MOLECULE [PDF]

مجلة جامعة الانبار للعلوم الصرفة, 2011
.:Density Functional Theory (DFT) of the type (B3LYP) and a Gaussian basis (6-311G) was applied for calculating the vibration frequencies and IR absorption intensities for normal coordinates of the ([6] Cyclacene (Chiral), with (D3d) symmetry) molecule ...
REHAB M. KUBBA
doaj   +1 more source

Development of three-dimensional seismic isolation system using negative stiffness link mechanism and air levitation mechanism in series (Overview of prototype experimental device and report on full-scale 3-D seismic excitation experiment by E-Defense shaking table)

Nihon Kikai Gakkai ronbunshu, 2017
Vibration tests of the prototype of the newly developed three-dimensional seismic isolation mechanism were carried out using several real-scale three-dimensional seismic waves with the world's largest E-defense shaking table.
Masashi YASUDA, Eiji SATO, Manabu YAMADA, Koichi KAJIWARA, Masaki HAYATSU   +4 more
doaj   +1 more source

Scientific Justification of the Nature of Ultramudflow Disaster [PDF]

E3S Web of Conferences
Based on the research and analysis of numerous publications about the Genaldon disaster, the authors propose an ingenious, scientifically grounded approach to understanding the nature of the process.
Krinochkina Olga, Kurochkina Valentina, Lavrusevich Andrey, Mashkova Elena   +3 more
doaj   +1 more source

Influence of End-Stop Design Variations on Dynamic Response of Centrifugal Pendulum Vibration Absorbers

Shock and Vibration
Centrifugal pendulum vibration absorbers (CPVA) are passive order-tuned mechanisms with absorber masses swinging along their specific paths. Their motion is limited by end-stops preventing undesired impacts due to rotor-to-absorber and absorber-to ...
Bahadir Sarikaya, Enes Ozdemir, Murat Inalpolat, Hyun Ku Lee, Moo Suk Kim   +4 more
doaj   +1 more source

Attenuation of rock blasting induced ground vibration in rock-soil interface

Journal of Rock Mechanics and Geotechnical Engineering, 2019
Blasting has been widely used in mining and construction industries for rock breaking. This paper presents the results of a series of field tests conducted to investigate the ground wave propagation through mixed geological media. The tests were conducted at a site in the northwestern part of Singapore composed of residual soil and granitic rock.
Jayasinghe, Bhagya, Zhao, Zhiye, Goh, Anthony Teck Chee, Zhou, Hongyuan, Gui, Yilin   +4 more
openaire   +4 more sources

Neighborhood structure effects on the Dynamic response of soil-structure interaction by harmonic analysis

MATEC Web of Conferences, 2015
For realizing the variation of structural dynamic characteristics due to neighbor structure in buildings group, the surface structure is idealized as an equivalent single degree of freedom system with rigid base whose site consists of a single ...
Pan Dan-guang, Yu Xin
doaj   +1 more source