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Relevant bibliographies by topics / Seismic vibration control / Dissertations / Theses

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Dissertations / Theses on the topic 'Seismic vibration control'

Author: Grafiati

Published: 3 June 2025

Last updated: 19 July 2025

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1

Edalath, Sanooj Sadique. "Fuzzy Logic Seismic Vibration Control of Buildings." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1335462916.

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2

Dai, Yang. "Feedback Control of Multi-Story Structures under Seismic Excitations." Diss., Virginia Tech, 2002. http://hdl.handle.net/10919/26742.

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This dissertation studies the feedback control of the dynamic response of multi-story structures to seismic excitations. The seismic excitations are represented by arbitrary unknown stochastic disturbances. The research consists of modeling of the structure with a control system and a control design in the state space. A combination of the extended Hamilton's principle and the Hierarchical Finite Element Method (HFEM) was used to derive the discrete differential equations of motion. This method exhibits superior accuracy with fewer degrees of freedom (DOF). The discrete equation were real

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3

Andreozzi, Michele. "Seismic protection of buildings of historical/cultural interest through the use of vibrating barriers." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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Recent earthquake events pointed out the problematic of protecting existing buildings from the catastrophic effects of earthquakes. The current strategies for vibration are successfully employed in the design of new structures; on the other hand, they are rarely used for protecting existing buildings, because they generally require substantial alteration of the original structure. In this thesis, a novel device called vibrating barrier, (ViBa), is implemented for the seismic protection of an historical building: the Bell Tower of the Messina Cathedral. This device is able to reduce the dynamic

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4

SIVORI, DANIELE. "Ambient vibration tools supporting the model-based seismic assessment of existing buildings." Doctoral thesis, Università degli studi di Genova, 2021. http://hdl.handle.net/11567/1045713.

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The technological advancements of the last decades are making dynamic monitoring an efficient and widespread resource to investigate the safety and health of engineering structures. In the wake of these developments, the thesis proposes methodological tools supporting the seismic assessment of existing buildings through the use of ambient vibration tests. In this context, the literature highlights considerable room to broaden the ongoing research, especially regarding masonry buildings. The recent earthquakes, once again, highlighted the significant vulnerability of this structural typology as

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5

Cañedo, Giselle Ramirez. "Mapa de iso-velocidades : uma ferramenta para o controle das vibrações nas pedreiras." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/3/3134/tde-08072014-121202/.

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Com o crescimento urbano ao redor das minerações surgiram novos problemas como o desconforto dos vizinhos com vibrações, que podem provocar danos nas estruturas das casas, a poeira, os ultralançamento, a sobrepressão atmosférica, entre outros. Atualmente no Brasil as restrições ambientais são cada vez mais rígidas e são exigidos mais monitoramentos sismográficos como medida de controle ambiental. A Geosonic Inc. foi a primeira a usar o sistema de mapa de iso-velocidades, mas seu uso não é prática corrente no Brasil devido ao elevado custo de instrumentação e de operação no campo. Iramina (2002

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Ontiveros, Pérez Sergio Pastor. "Otimização simultânea de posições e forças de amortecedores de vibração por atrito para controle de vibrações de estruturas." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/96355.

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A otimização de amortecedores é uma área nova que vem sendo explorada nos últimos anos. Existem vários métodos clássicos e outros mais recentes que estão disputando em confiabilidade, eficiência e rapidez na obtenção de um resultado ótimo. Os algoritmos de otimização são classificados em determinísticos, que utilizam a informação do gradiente, ou seja, usam os valores das funções e suas derivadas, e os meta-heurísticos são algoritmos aleatórios que são métodos probabilísticos não baseados em gradiente, utilizando somente a avaliação da função objetivo. O Firefly Algorithm é um algoritmo meta-h

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7

Farsi, Mohammed Naboussi. "Identification des structures de génie civil à partir de leurs réponses vibratoires : vulnérabilité du bâti existant." Université Joseph Fourier (Grenoble), 1996. http://www.theses.fr/1996GRE10257.

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Le but de ce travail est de developper des outils pour la determination des caracteristiques vibratoires des structures de genie civil, et leur application en vue d'une amelioration de la reglementation parasismique, voire d'une estimation de la vulnerabilite sismique. Une technique d'identification multi-excitations est presentee, permettant la prise en compte des couplages entre les differents types de mouvements, et egalement celle de l'interaction sol-structure. Elle est ensuite appliquee a deux types de donnees: le premier provient d'une experience sur table vibrante (donnees cassba), et

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8

Tzu-YaoLin and 林子堯. "Seismic vibration control of offshore wind turbines." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/87466102546226947081.

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碩士<br>國立成功大學<br>土木工程學系<br>102<br>Taiwan has one of the best wind-farms in the world; therefore, it is beneficial for Taiwan to develop renewable energy by using off-shore wind turbines. Nevertheless, since Taiwan is also prone to earthquakes, the problem of seismic protection for the offshore wind turbines becomes an important issue. To this end, a mass damper (MD) system is developed to mitigate the seismic response of offshore wind turbines in this study. Different from a traditional TMD, which usually needs an added reactive mass with an oscillating frequency tuned to that of the primary st

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9

REGGIO, ANNA. "Innovative technologies for the vibration control of equipment in critical facilities." Doctoral thesis, 2011. http://hdl.handle.net/11573/916968.

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The present thesis settles in the framework of the dynamic modelling, seismic mitigation and permanent health monitoring of equipment in critical facilities. The main objective is to assess the feasibility and the effectiveness of innovative mitigation Technologies including: the passive isolation of a single equipment (equipment isolation systems); the passive isolation of a raised floor, on which a group of several equipment is anchored (isolated raised-floor systems); a non-conventional Tuned Mass Damper (TMD), realized by converting a large mass already present on the structure, e.g. the

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10

Lin, Fu-Xiang, and 林富祥. "Vibration Control of Seismic Structures Using Multi-Functional Electromagnetic Semi-active Tuned Mass Dampers." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/31957226768574619828.

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碩士<br>國立中興大學<br>土木工程學系所<br>103<br>Conventional tuned mass damper (TMD) is a popular and generally accepted vibration control device in the field of passive structural control. A TMD system consists of an added mass with properly functioning spring and damping elements that provide additional damping in a primary structure. By attaching a TMD to a structure, vibration energy of the structure can be transferred into the TMD and dissipated via the damping mechanism. The application of tuned mass dampers (TMD) for vibration control of civil engineering structures has been widely accepted after num

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11

Yang, Ting-Wei, and 楊庭維. "Vibration Control of Seismic Structures Using Semi-active Friction Typed Multiple Tuned Mass Dampers." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/64028821788277972506.

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碩士<br>國立中興大學<br>土木工程學系所<br>97<br>The design and application of linear typed tuned mass damper(TMD) systems are well developed, nonlinear TMD systems are still developing.In this paper, statement about friction typed TMD system, which is one kinds of nonlinear TMD. Friction typed TMD energy dissipating by friction mechanism, there is no need for the installation of extra damping device. But passive friction multiple TMD(PF-MTMD) slip load is fixed and pre-determined value. The PF-MTMD may lose its tuning and energy dissipating ability when the PF-MTMD is in its stick state. In order to overcome

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12

Mishra, Rashmi. "Application of tuned mass damper for vibration control of frame structures under seismic excitations." Thesis, 2011. http://ethesis.nitrkl.ac.in/2902/1/Rashmi.pdf.

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Current trends in construction industry demands taller and lighter structures, which are also more flexible and having quite low damping value. This increases failure possibilities and also problems from serviceability point of view. Now-a-days several techniques are available to minimize the vibration of the structure, out of the several techniques available for vibration control ,concept of using TMD is a newer one. This study was made to study the effectiveness of using TMD for controlling vibration of structure. At first a numerical algorithm was developed to investigate the respon

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13

Pandit, Amiya Ranjan. "Seismic Response of Partially Filled Sloped Bottom Container and Tuned Liquid Damper for Vibration Control." Thesis, 2019. http://ethesis.nitrkl.ac.in/10119/1/2019_PhD_ARPandit_514CE1003_Seismic.pdf.

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The oscillation of the unrestrained free liquid surface in a partially filled container due to some external excitation is termed as sloshing. It comprises a wide range of problems in many fields of engineering such as aerospace, civil, marine, nuclear and so on. In the field of civil engineering, a considerable understanding of sloshing behavior in a water retaining structure is needed. This dissertation makes an honest attempt to study the response of ground supported sloped bottom container and its application as a tuned liquid damper to control the uncalled vibration of the structure. In

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14

Harvey, Jr Philip Scott. "Rolling Isolation Systems: Modeling, Analysis, and Assessment." Diss., 2013. http://hdl.handle.net/10161/8012.

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<p>The rolling isolation system (RIS) studied in this dissertation functions on the principle of a rolling pendulum; an isolated object rests on a steel frame that is supported at its corners by ball-bearings that roll between shallow steel bowls, dynamically decoupling the floor motion from the response of the object. The primary focus of this dissertation is to develop predictive models that can capture experimentally-observed phenomena and to advance the state-of-the-art by proposing new isolation technologies to surmount current performance limitations. To wit, a double RIS increases the s

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15

FAILLA, ISABELLA. "Novel devices and strategies in earthquake protection of structures." Doctoral thesis, 2018. http://hdl.handle.net/11570/3126483.

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The base isolation technique is one of the most widespread solutions for the mitigation of damage induced by seismic action on structures. The basic idea of this system is to disconnect the superstructure response from the ground motion by inserting appropriate mechanical devices placed between the foundation and the structure. Since generally the most significant component of the seismic action is the wave one, the isolation effect is achieved using devices generally characterized by a low horizontal rigidity combined with a high vertical rigidity, dictated by the need to withstand excessive

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16

Pandey, Mrityunjay. "Semi-active Control of Earthquake Induced Vibrations in Building Structures using MR Dampers: Algorithm Development and Benchmark Application." Thesis, 2018. http://etd.iisc.ac.in/handle/2005/4190.

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The thrust of this thesis is the development of two different kinds of feed-forward control strategy using the semi-active device MR damper to monitor MR damper supply current/voltage. The study develops a feed-forward control strategy both for linear and nonlinear base isolated buildings. This is achieved by the implementation of an appropriate control force algorithm which must respond to the earthquake induced ground acceleration in real time. This work is focused in the development of an appropriate control force algorithm which responds to ground acceleration in real time. In this work, b

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