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Dissertations / Theses on the topic 'Patchy vibration'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Anusha, Anisetti. "Non-linear Shunting of Piezo-actuators for Vibration Suppression." Wright State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=wright1208834134.

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2

Ranger, Julie-Anne. "Amortissement passif des vibrations par patchs piézocéramiques shuntés." Châtenay-Malabry, Ecole centrale de Paris, 2007. http://www.theses.fr/2007ECAP1041.

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Les travaux de recherche sur l'amortissement des vibrations strucutrales ont principalementconcerné soir des dispositifs qualifiés d'actifs, basés sur la combinaison de capteurs - contrôleurs - actionneurs, soit des dispositifs qualifiés de passifs pour lesquels il n'y a pas d'apport externe d'énergie. L'amortissement passif repose habituellement sur des propriétés amortissantes du materiau (materiaux viscoélastiques). Cependant plusieurs travaux ont mis en évidence expérimentalement puis numériquement des propriétés amortissantes analogues à l'aide de patchs piézocéramiques, de l'énergie méca

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3

Kimbrough, Bradley Trent. "Path Matched Vibration Insensitive Fizeau Interferometer." Diss., Tucson, Arizona : University of Arizona, 2006. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu%5Fetd%5F1444%5F1%5Fm.pdf&type=application/pdf.

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4

Luleci, Ibrahim Furkan. "Active Vibration Control Of Beam And Plates By Using Piezoelectric Patch Actuators." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615491/index.pdf.

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Conformal airborne antennas have several advantages compared to externally mounted antennas, and they will play an important role in future aircrafts. However, they are subjected to vibration induced deformations which degrade their electromagnetic performances. With the motivation of suppressing such vibrations, use of active vibration control techniques with piezoelectric actuators is investigated in this study. At first, it is aimed to control the first three bending modes of a cantilever beam. In this scope, four different modal controllers<br>positive position feedback (PPF), resonant c

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5

Schmidt, Steven P. "Active vibration control of flexible structures using the Modular Control Patch (MCP)." Monterey, California. Naval Postgraduate School, 1997. http://hdl.handle.net/10945/7851.

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Approved for public release; distribution is unlimited.<br>Active vibration control has been increasingly used as a solution for spacecraft structures to achieve the degree of vibration suppression required for precision pointing accuracy that is not easily achieved with passive damping. This thesis examines the effectiveness and suitability of the Modular Control Patch (MCP) to achieve active vibration control on flexible structures. The MCP was developed by TRW for the United States Air Force and uses a digital signal processor to implement control algorithms. The objective of the MCP progra

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6

Li, Kaixiang. "Structural vibration damping with synchronized energy transfer between piezoelectric patches." Phd thesis, INSA de Lyon, 2011. http://tel.archives-ouvertes.fr/tel-00735788.

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Advanced materials such as carbon fiber, composite materials et al. are more and more used in modern industry. They make the structures lighter and stiffer. However, they bring vibration problems. Researchers studied numerous methods to eliminate the undesirable vibrations. These treatments are expected to be a compact, light, intellectual and modular system. Recently, a nonlinear technique which is known as Synchronized Switch Damping (SSD) technique was proposed. These techniques synchronously switched when structure got to its displacement extremes that leading to a nonlinear voltage on the

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7

Inoue, Akira. "Quantification of parallel vibration transmission paths in discretized systems." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1167412835.

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8

Inoue, Akira. "Quantification of parallel vibration transmission paths in discretized systens." The Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=osu1167412835.

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9

Kim, Jeung Tae. "Source and path recovery from vibration response monitoring." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/14806.

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10

Beck, Benjamin Stewart. "Negative capacitance shunting of piezoelectric patches for vibration control of continuous systems." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/45850.

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The ability to reduce flexural vibrations of lightweight structures has been a goal for many researchers. A type of transducer-controller system that accomplishes this is a piezoelectric patch connected to an electrical impedance, or shunt. The piezoelectric patch converts the vibrational strain energy of the structure to which it is bonded into electrical energy. This converted electrical energy is then modified by the shunt to influence to mechanical response. There are many types of shunt circuits which have demonstrated effective control of flexural systems. Of interest in this work is the

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11

Hariri, Mohammed, and not supplied. "Control of Structures Using SMA Wires and Piezoelectric Patches." RMIT University. Aerospace, Mechanical & Manufacturing Engineering, 2009. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20091001.154507.

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Smart materials and structures systems are increasingly being developed to handle more complex problems. One of the main research schemes is the augmentation of the control authority of the smart actuators used in such systems. The augmentation can be obtained by constructing hybrid and multi- smart materials actuator systems and/or by the optimization of the location and orientation of those actuators. In the first part of this study, the alteration of the natural frequency of composite structures using Nitinol-based Shape Memory Alloy (SMA) wires will be presented using the analyses of stra

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12

Kung, Shih-Wei. "Vibration analysis of beams and rectangular plates with multiple constrained layer damping patches /." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487949150071853.

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13

Plessy, Arnaud. "Comportement vibroacoustique de plaques amorties par des patches multicouches viscoélastiques." Dijon, 2009. http://www.theses.fr/2009DIJOS068.

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14

ビン, ヘララディンヒルミ, and Hilmi Bin Hela Ladin. "Research of noise and vibration analysis for structures involving transfer path and sound source." Thesis, https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB12981849/?lang=0, 2016. https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB12981849/?lang=0.

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本論文は，従来よりも信頼性や効率が良く実用的に構造物の振動・騒音を低減することを目指して，実験および解析技術に対する新たなアプローチを確立することを目的としている．そのために，統計的エネルギー解析法と伝達経路解析法を統合することで，両者の入力を相互利用可能な手法を提案し，構造物の振動・騒音の低減を支援するための，実験および解析手法を構築した．<br>In this thesis, we have established new theoretical approaches as well as some basic practical applications in the development of noise and vibration analysis for structures involving transfer path and sound source from airborne noise and structure-borne noise. These new approaches were extracted from the existing experimental and analysis technique of noise and vibration for structures, which will improve their efficien

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15

Jiang, Wenwei. "Spectral-based Substructure Transfer Path Analysis of Steady-state and Transient Vibrations." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1273168454.

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16

Rocha, Téo Lenquist da 1979. "Attenuation of noise and vibration using piezoelectric patches and dissipative shunt circuits = Atenuação de ruído e vibração utilizando pastilhas piezoelétricas e circuitos elétricos dissipativos." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265941.

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Orientador: Milton Dias Júnior<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-25T08:49:57Z (GMT). No. of bitstreams: 1 Rocha_TeoLenquistda_D.pdf: 5484630 bytes, checksum: 40d5122ff01ee4077957ffbc79369379 (MD5) Previous issue date: 2014<br>Resumo: Ruído em um veículo é geralmente causado pela vibração de vários componentes. Por exemplo, vibrações causadas pelo motor podem causar vibração de um painel levando a ruído no interior da cabine. O controle de tal ruído e vibração pode ser conseguido através da aplicaçã

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17

Duan, Chengwu. "Dynamic analysis of dry friction path in a torsional system." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1092672620.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xxiv, 200 p.; also includes graphics (some col.). Includes bibliographical references (p. 196-200). Available online via OhioLINK's ETD Center

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18

Gallant, Bryan M. "Vibrational analysis of a shipboard free electron laser beam path." Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/10607.

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This thesis explores the deployment of a free electron laser (FEL) weapon system in a shipboard vibration environment. A concept solid model of a shipboard FEL is developed and used as a basis for a finite element model which is subjected to vibration simulation in MATLAB. Vibration input is obtained from ship shock trials data and wave excited motion data from ship motion simulation software. Emphasis is placed on the motion of electron beam path components of the FEL and the feasibility of operation aboard ship. The resulting component motion after passive isolation control is within the amp

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19

Lozi, Julien. "Caractérisation du banc stabilisé d’interférométrie en frange noire PERSÉE." Thesis, Paris 11, 2012. http://www.theses.fr/2012PA112047/document.

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L'observation des exoplanètes pose deux problèmes : le contraste entre la planète et l'étoile et leur très faible séparation. L'une des techniques permettant de résoudre ces difficultés est l'interférométrie en frange noire : deux pupilles sont recombinés pour faire une interférence destructive sur l'étoile, et leur base est réglée pour que l'interférence soit constructive sur la planète. Cependant, pour garantir une extinction suffisante de l'étoile, la différence de trajet optique entre les faisceaux doit être de l'ordre du nanomètre, et le pointage meilleur que le centième de tache d'Airy,

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20

Liette, Jared V. "New paradigms to control coupled powertrain and frame motions using concurrent passive and active mounting schemes." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1401134376.

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21

Lee, Hyunwook. "A Polynomial Chaos Approach for Stochastic Modeling of Dynamic Wheel-Rail Friction." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/77195.

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Accurate estimation of the coefficient of friction (CoF) is essential to accurately modeling railroad dynamics, reducing maintenance costs, and increasing safety factors in rail operations. The assumption of a constant CoF is popularly used in simulation studies for ease of implementation, however many evidences demonstrated that CoF depends on various dynamic parameters and instantaneous conditions. In the real world, accurately estimating the CoF is difficult due to effects of various uncertain parameters, such as wheel and rail materials, rail roughness, contact patch, and so on. In this st

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22

Larsen, Christopher G. "Structural FRF Measurements up to 50 kHz to Assist Frequency Band Selection for Machinery Health Monitoring." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1337715377.

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23

Srinivasan, Vijay. "Mobility Analysis of Structure-borne Noise Paths in a Simplified Rotorcraft Gearbox System." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1276884944.

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24

Hinkle, Charlotte Elizabeth. "Employing Diffusion Monte Carlo to Study Ro-vibrational Excited States and Minimized Energy Paths of CH₅⁺." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1308183199.

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25

Padilha, Paulo Eduardo França. "Comparação de tecnicas de analise de caminhos de transferencia vibroacusticos." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263236.

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Orientador: Jose Roberto de França Arruda<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-06T11:13:15Z (GMT). No. of bitstreams: 1 Padilha_PauloEduardoFranca_M.pdf: 721382 bytes, checksum: 8fae387ba335cdb5b3e7b462935121c1 (MD5) Previous issue date: 2006<br>Resumo: Neste trabalho é feita uma comparação de técnicas analíticas e experimentais de Análise de Caminhos de Transferência Vibroacústicos. A Análise de Caminhos de Transferência, ou TPA como é conhecida pela abreviatura em inglês, é uma ferramenta para

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26

Faye, Mbaye. "Signature infrarouge et modélisation pour la télédétection de deux gaz : SF6 et RuO4." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS182.

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Ce travail est une contribution à l'étude spectroscopique de deux gaz d'origine anthropique pour lesquels la modélisation de la signature infrarouge pourra permettre une quantification dans rejets dans l'atmosphère. L'hexafluorure de soufre (SF₆) est principalement rejeté par l'industrie électrique, qui l'utilise comme isolant gazeux et sa concentration augmente rapidement dans l'atmosphère (de l'ordre de 7 % par an). C'est un gaz à effet de serre puissant listé dans le protocole de Kyoto car ses absorptions intenses vers 10 μm placées dans une fenêtre de transparence atmosphérique et sa durée

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27

Castel, Alexis. "Comportement vibratoire de structures composites intégrant des éléments amortissants." Phd thesis, Université de Bourgogne, 2013. http://tel.archives-ouvertes.fr/tel-00983378.

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Ce travail traite de la modélisation de structures composites intégrant des éléments amortissants passifs. Un modèle de plaque "équivalent simple couche" générique utilisant des fonctions de description du cisaillement transverse est présenté. Plusieurs méthodes d'obtention de ces fonctions sont décrites, permettant de retrouver des modèles classiques ou issus de la littérature. Deux nouvelles méthodes d'obtention de ces fonctions sont aussi présentées.Plusieurs méthodes de discrétisation adaptées au modèle générique sont étudiées. La méthode de Navier permet de tester la qualité de chaque mod

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28

Karhade, Omkar. "Scanning micro interferometer with tunable diffraction grating for low noise parallel operation." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28142.

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Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Degertekin, Levent; Committee Co-Chair: Kurfess, Thomas; Committee Member: Adibi, Ali; Committee Member: Danyluk, Steven; Committee Member: Hesketh, Peter.

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29

Florens, Corine. "Modeling of the viscoelastic honeycomb panel equipped with piezoelectric patches in view of vibroacoustic active control design." Phd thesis, Ecole Centrale Paris, 2010. http://tel.archives-ouvertes.fr/tel-00545422.

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Active control has often been considered for low frequency control of noise radiated by trim panels inside aircraft or helicopter cabins. Trim panels are usually made of honeycomb core sandwich because of their high strength to mass ratio. Active control techniques applied to honeycomb panel have not always given results as good as expected and this thesis aims to understand these limitations based on validated mechanical models of the active panels. For the modeling of honeycomb panels, the main difficulty is to estimate equivalent properties for the core. A numerical homogenization procedure

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30

Vogel, Jan. "Tuhost ramene průmyslového robotu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318394.

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Stiffness analysis of an arm of an industrial robot with linear kinematics during a drilling operation. For solving this problem are used optical scanners. Finding the optimal cutting force for drilling by criterions: minimal deformation of robots arms and, at the same time, the emerging vibration from the cutting process is also minimal.

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31

Baiardi, Alberto. "Development of computational methods for the simulation of vibrational and electronic spectra of medium-to-large sized molecular systems." Doctoral thesis, Scuola Normale Superiore, 2018. http://hdl.handle.net/11384/85999.

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32

辰宗, 森., та Yoshimune Mori. "軽量・低振動フレーム構造の創出に資する設計評価技術に関する研究". Thesis, https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13106237/?lang=0, 2019. https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13106237/?lang=0.

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本研究では，有限要素法に基づく伝達経路解析手法および相互平均コンプライアンス手法に対する新たな評価方法を考案し，それら併用することで，強度・剛性などの設計要件を満足しながら軽量化・低振動化が可能なフレーム構造の開発に活用できる設計評価技術を開発した．<br>In this study, the author developed a new design evaluation technology that can reduce weight and vibration while satisfying design requirements such as strength and rigidity and be used for the development of a frame structure, by creating and cmbining new evaluation methods for transfer path analysis and mutual mean compliance based on finit element method.<br>博士(工学)<br>Doctor of Philosophy in Engineering<br>同志社大学<br>Doshisha University

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33

Silva, César Helou Teodoro da. "Estudo do ruído de rodagem estrutural através da análise dos caminhos de transferência de energia - TPA." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/18/18149/tde-22122011-223637/.

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Os ruídos, vibrações e asperezas de rodagem veicular (do acrônimo em inglês Road NVH), presentes de 20 Hz até 1000 Hz aproximadamente, originam-se das vibrações e propagações acústicas dos pneus ao interagir com as superfícies. Nestas fontes de ruído, ambas as vias de contribuições estruturais e aéreas, são relevantes para o refinamento veicular. Constantes são os esforços para estudar o veículo como um conjunto de caminhos de transferência entre a dinâmica dos pneus até o conforto dos passageiros. Sendo assim, o tratamento dos mecanismos que geram e propagam o ruído e vibração à cabine está a

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34

Plé, Thomas. "Nuclear Quantum Dynamics : exploration and comparison of trajectory-based methods." Electronic Thesis or Diss., Sorbonne université, 2020. http://www.theses.fr/2020SORUS413.

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Cette thèse aborde le problème de la dynamique quantique nucléaire et se concentre sur les méthodes basées sur les trajectoires pour le calcul de spectres vibrationnels quantiques de systèmes en phase condensée. Nous introduisons une nouvelle approximation de la densité de Wigner basée sur le développement d'Edgeworth et montrons qu'elle offre de meilleures performances que ses alternatives les plus courantes. Nous utilisons cette approximation pour le calcul de fonctions de corrélation temporelles (TCF) dans le contexte de la dynamique quantique linéarisée (LSC-IVR). Nous introduisons égaleme

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35

Lin, Geeng-Huei, and 林耿輝. "Vibration Analysis of Patched Composite Plates." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/26093547713799776822.

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36

You-yu, Li, and 李侑諭. "Vibration Attenuation of Honeycomb Sandwich Panels Using MFC Smart Patches." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/95483686949586142099.

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碩士<br>大葉大學<br>機械與自動化工程學系<br>97<br>ABSTRACT New all-composite aircraft fuselage designs are being developed with a flexible honeycomb core sandwiched between carbon fiber reinforced composite laminate face sheets. The honeycomb sandwich panels offer potential advantages for significant weight reduction, while maintaining strength and fatigue properties. However, the excessive levels of vibration and noise of honeycomb sandwich panels have been a major cause for concern. Thus, vibration suppression and noise reduction in honeycomb sandwich panels pose major challenges for future aircraft design

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37

Ko, Tsneg-Chung, and 柯正忠. "Analysis of adhesively jointed, and patched laminated plates for stresses, vibration, and fracture." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/53577323453203489618.

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38

楊祐良. "Experimental studies of active vibration control of laminated composite plates with piezoelectric patches." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/23780530555806619915.

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碩士<br>國立中興大學<br>機械工程學系<br>87<br>Owing to the their attractive characteristics such as the high strength-to-weight ratio, the high stiffness-to-weight ratio, and the corrosion resistant property, composite materials have been found applications in various industries. As composite materials are gaining their popularity, in many occasions, however, one is required to pay a special attention to the vibration problem associated with products made of them. One approach to eliminating the vibration is to use the active control method. It is the goal of the present study to design a suitable digita

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39

陳見華. "Investigation of vibration characteristics of patched composite plates containing crack by amplitude fluctuation espi." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/19924449295624459838.

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40

Lee, Jia-Hung, and 李佳鴻. "Adaptive Control of Vibration Using FXLMS Algorithm With Online Secondary Path Modeling." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/82761039885445896960.

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碩士<br>國立臺灣大學<br>應用力學研究所<br>96<br>This paper studied the designing of active adaptive control systems to control the vibration characteristics of a structure. For low-damping structure systems, it will produce violent vibration to cause damage of structure when systems received the influence of resonance frequency. The paper used adaptive filter as the controller of systems. It adopt FXLMS algorithm and online secondary path modeling. And used the feedback signal of FIR filter and the feedback of error signal to produce reference signal. By the way of the reference(input) signal and the error s

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41

Chang, Y. S., and 張宇賢. "Estimation of Vibration Transmission Path and Source Directin in Structure by Signal Processing." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/15438667288771961582.

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42

Sharma, Manu. "Studies on application of fuzzy logic for active vibration control of beams and plates using piezoelectric patches." Thesis, 2004. http://localhost:8080/iit/handle/2074/5150.

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43

Ho, Sio-Long, and 何小龍. "Optimal Vibration Control Synthesis of Smart Plates with Piezoelectric Patch Using Mindlin-Reissner Plate Elements Based on Analytical Trial Functions." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/61772377423048019530.

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碩士<br>國立高雄應用科技大學<br>土木工程與防災科技研究所<br>101<br>Mindlin plate elements are employed wherein independent interpolating functions are presumed for vertical displacements and rotational angles within the elements. When applied to thin plates shear locking phenomena occur and this can be circumvented via the reduced integration techniques, or selective integration scheme, etc. This thesis presents a research on the development and applications of ATF-TSP16 finite elements for thick to thin piezoelectric plates wherein the interpolation functions are built up based on the fundamental solutions of Mindli

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44

Shivashankar, P. "Analytical Modelling and Non-linear Characterisation of Piezoelectric Materials for Actuation and Vibration Control of Beams." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/4011.

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The use of piezoelectric materials for actuation, and vibration suppression of thin beams, is the subject of study in this doctoral thesis. The initial focus is set on reducing beam vibrations with resistively shunted piezoelectric patches, where the converted electrical energy is dissipated by the resistor to give an additional damping. The amount of additional damping achieved depends on the value of shunted resistor, the dimensions of the piezoelectric, and its location on the substructure. Hence, the resistively shunted piezoelectric-beam was modelled to determine the optimal values, and t

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45

Shivashankar, P. "Analytical Modelling and Non-linear Characterisation of Piezoelectric Materials for Actuation and Vibration Control of Beams." Thesis, 2017. http://etd.iisc.ernet.in/2005/3990.

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The use of piezoelectric materials for actuation, and vibration suppression of thin beams, is the subject of study in this doctoral thesis. The initial focus is set on reducing beam vibrations with resistively shunted piezoelectric patches, where the converted electrical energy is dissipated by the resistor to give an additional damping. The amount of additional damping achieved depends on the value of shunted resistor, the dimensions of the piezoelectric, and its location on the substructure. Hence, the resistively shunted piezoelectric-beam was modelled to determine the optimal values, and t

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(9193604), Wesaam Lepak. "DEVELOPMENT OF SOURCE-PATH MODELS TO SYNTHESIZE PRODUCT SOUNDS OF AN OUTDOOR HVAC UNIT." Thesis, 2020.

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Abstract:

Outdoor heating, ventilating, and air-conditioning (HVAC) units emit a significant amount of noise, which may lead to poor sound quality and a perceived low product quality. It is the job of the noise control engineer to reduce the undesired noise and improve the sound quality of the outdoor HVAC unit to decrease consumer annoyance. There is great interest in developing a detailed and accurate acoustic model of the outdoor HVAC unit so that the sound of the outdoor HVAC unit can be listened to before the unit is constructed. Having an acoustic model which can synthesize sounds allows the noise

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Pao, Ting-Kuang, and 包庭光. "The Study of Vibration-Assisted Scribing Process in Circular Path Scribing of LCD Glass Substrate." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/29210941705265059694.

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Abstract:

碩士<br>國立臺灣大學<br>機械工程學研究所<br>99<br>Wheel scribing is considered one of the most common glass substrate separation techniques nowadays. However, there is only a few applications referring to circular scribing paths, and currently, there is no relative studies in such functions. The primary subject of this study is to reach the quality similar to the ones acquired in linear paths, and the automatic separation mechanism with vibration assistant for both thinner and thicker glasses. In this study, the effects of scribing speed on different diameters were examined, and followed by how vibration assi

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Cherian, Achu Catherine. "Effect of Cyclic Strain Path And Vibration Cycles on Shear Modulus And Damping of Sand." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/2675.

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The soil strata is often subjected to various kinds of vibrations such as that caused by earthquakes, water waves, traffic loads, wind power plants, construction related equipments, pile driving and vibratory machines. The strains induced in a soil mass due to the vibrations generated by these different sources often lie in a range of 0.0001% - 0.1%. The estimation of the shear modulus (G) and damping (D) of soils in this strain range becomes an important aspect for performing the analysis and design of various geotechnical structures subjected to different kinds of vibrations. Strain amplitud

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Cherian, Achu Catherine. "Effect of Cyclic Strain Path And Vibration Cycles on Shear Modulus And Damping of Sand." Thesis, 2016. http://etd.iisc.ernet.in/handle/2005/2675.

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Abstract:

The soil strata is often subjected to various kinds of vibrations such as that caused by earthquakes, water waves, traffic loads, wind power plants, construction related equipments, pile driving and vibratory machines. The strains induced in a soil mass due to the vibrations generated by these different sources often lie in a range of 0.0001% - 0.1%. The estimation of the shear modulus (G) and damping (D) of soils in this strain range becomes an important aspect for performing the analysis and design of various geotechnical structures subjected to different kinds of vibrations. Strain amplitud

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Huang, Ci-Rong, and 黃啟榮. "Analysis of Cutting Path Effect on Spindle AE and Vibration Based Tool Wear Monitoring System in Micro Milling." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/19170472009704517361.

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Abstract:

碩士<br>國立中興大學<br>機械工程學系所<br>100<br>As the demand of the small feature and high accuracy for aerospace, biomedical, and electronic devices continuously increases, the micro mechanical machining plays an important role for improving their manufacturing quality and efficiency. Due to the higher tool wear rate than conventional counterpart, the tool wear monitoring in the micro machining draws much more attention than before. The objective of this thesis is to analyze the cutting path effect on the performance of tool wear monitoring system integrated with the spindle vibration and acoustic em

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