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Dissertations / Theses on the topic 'Active mass damper'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

Chey, Min Ho. "Passive and Semi-Active Tuned Mass Damper Building Systems." Thesis, University of Canterbury. Civil and Natural Resources Engineering, 2007. http://hdl.handle.net/10092/3431.

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This thesis explores next generation passive and semi-active tuned mass damper (PTMD and SATMD) building systems for reducing the seismic response of tall structures and mitigating damage. The proposed structural configuration separates the upper storey(s) of a structure to act as the 'tuned' mass, either passively or semi-actively. In the view point of traditional TMD system theory, this alternative approach avoids adding excessive redundant mass that is rarely used. In particular, it is proposed to replace the passive spring damper system with a semi-active resetable device based system (SAT

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2

Liedes, T. (Toni). "Improving the performance of the semi-active tuned mass damper." Doctoral thesis, University of Oulu, 2009. http://urn.fi/urn:isbn:9789514291258.

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Abstract The tuned mass damper (TMD) is a well-known and approved concept for resonance vibration control. However, as a fully passive device, the traditional TMD has a limited operating band and rather poor robustness against parameter variations. To overcome these weaknesses, a semi-active control can be applied to TMD. As a result, a more effective and flexible device can be attained. In theory, the application of the semi-active scheme is straightforward and the gain in performance is considerable. In practice, however, the non-idealities associated with actuators and control systems degra

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3

Ritchey, John Kenneth. "Application of Magneto-Rheological Dampers in Tuned Mass Dampers for Floor Vibration Control." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/35287.

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<p> The purpose of this research is to establish the effectiveness of tuned-mass-dampers (TMD) using semi-active magneto-rheological (MR) dampers to mitigate annoying floor vibrations. Annoying floor vibration is becoming more common in today's building structures since building materials have become stronger and lighter; the advent of computers has resulted in "paperless" offices; and the use of floors for rhythmic activities, such as aerobics and concerts, is more common. Analytical and experimental studies were conducted to provide an understanding of the effects of incorporating the semi

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Juma, Hameed W. "Numerical and Experimental Analyses of Actively Controlled Pendulum Tuned Mass Damper." University of Dayton / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1544528950528469.

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5

Huang, Haoyu. "A temperature controlled semi-active tuned mass damper using shape memory alloy for vibration reduction applications." Thesis, University of Bath, 2017. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.720664.

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This study developed a temperature controlled semi-active tuned mass damper (TMD) using shape memory alloy (SMA) for civil structural applications. It addressed the off-tuning issues caused by the variances in structural mass and stiffness when in service, since off-tuning of the TMD increases the structural response. The effect of in-service temperature on SMA can provide adaptive dynamic properties to TMD. Therefore, the natural frequencies can be adjusted to an optimal range. In this thesis, the material characterisation of SMA is studied through acting dynamic cyclic loading. It was found

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Eltaeb, Mohamed A. "Active Control of Pendulum Tuned Mass Dampers for Tall Buildings Subject to Wind Load." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton150343994189116.

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Santos, Rodrigo Borges. "Controle ativo de vibrações em estruturas flexíveis utilizando desigualdades matriciais lineares (LMIs) /." Ilha Solteira : [s.n.], 2008. http://hdl.handle.net/11449/94557.

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Orientador: Vicente Lopes Júnior<br>Banca: Nobuo Oki<br>Banca: José Manoel Balthazar<br>Resumo: Este trabalho tem como propósito projetar controladores para aplicação em tempo real em uma estrutura flexível, objetivando a redução de vibração estrutural. Os controladores são projetados segundo o enfoque de otimização convexa, com formulações envolvendo desigualdades matriciais lineares (LMIs). Duas diferentes sínteses de realimentação são consideradas. A primeira é o projeto de controladores por realimentação de estados, estimados por um observador. A segunda metodologia é baseada no controle H

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Santos, Rodrigo Borges [UNESP]. "Controle ativo de vibrações em estruturas flexíveis utilizando desigualdades matriciais lineares (LMIs)." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/94557.

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Made available in DSpace on 2014-06-11T19:27:14Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-02-21Bitstream added on 2014-06-13T20:55:56Z : No. of bitstreams: 1 santos_rb_me_ilha.pdf: 887891 bytes, checksum: 9cff877681cee249ea6c3466ef38a6ed (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Este trabalho tem como propósito projetar controladores para aplicação em tempo real em uma estrutura flexível, objetivando a redução de vibração estrutural. Os controladores são projetados segundo o enfoque de otimização convexa, com formulações envolvendo desigualdades m

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9

Zhou, Shaoyi. "Advances in passive and active damping techniques." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEI066.

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Les systèmes mécaniques (e.g. structures flexibles) sont généralement peu amortis, et par conséquent des vibrations de fortes amplitudes peuvent apparaitre. Il apparait nécessaire de développer des stratégies de contrôle vibratoire pour atténuer ces vibrations mécaniques. Cette thèse a pour objectif de développer plusieurs techniques d'amortissement de vibration passives ou actives. La première partie porte sur l'utilisation d'un “inerter” pour améliorer les performances de contrôle vibratoire de deux dispositifs existants, l'amortisseur à masse accordée (TMD) et deux TMDs placés en série (SDT

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10

Alhujaili, Fahad Abdulrahman. "Semi-Active Control of Air-Suspended Tuned Mass Dampers." University of Dayton / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1354480214.

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11

Lindh, Cory W. "Dynamic range implications for the effectiveness of semi-active tuned mass dampers." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/57884.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2010.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 159-164).<br>The response of tall buildings subjected to dynamic wind loads has been widely studied. For excitations approaching the resonant frequencies of the structure, ensuring serviceability is a significant concern. One traditional solution is the implementation of a tuned mass damper (TMD), which acts as a passive damping device in the region of the tuned frequency. However, TMDs exhibit a limited ba

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12

Chiu, Chun-Wei, and 邱俊煒. "STRUCTURE VIBRATION SUPPRESSION BY NEURAL CONTROLLER AND ACTIVE MASS DAMPER." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/21567296598225664539.

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碩士<br>國立成功大學<br>航空太空工程學系<br>88<br>For the experimental model of fundamental frequency about 1 Hz, the vibration amplitude under resonance excitation is reduced by 80% in steady state response. The vibration amplitude under random excitation can also be suppressed effectively by 70% by the neural controller and active mass damper. In addition, the peak-to-peak displacement magnitude under 1/4 scale of Ji-Ji Earthquake (Sep. 21, 1999) is effectively reduced by 80%. The controller is also shown to be robust to system parameter variations. From the above experiments, the integration of neural

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13

穆如蘭. "Study of Active Tuned Mass Damper in Building Structural Control." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/45125999123917650472.

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碩士<br>中原大學<br>土木工程學系<br>85<br>The non-canonical control form systen is transformed into the canonical control form system. Then, the results are used to develop the fuzzy sliding mode control(FSMC) in active tuned mass damper (TMP) control system. It is desired that the structure under control can be sustained in safety and stability during external disturbances. 　　The control rule is difficult to derive from the classical control theory for building structural control system using active TMD. Furthermore, the improper control force may cause resonance and failure of the structure. It can''t b

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Jhih-DeJian and 簡誌德. "Least Input Energy Method for Semi-Active Mass Damper Systems." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/13724517083517286258.

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15

Shia, Syuan, and 夏瑄. "Seismic Design of Passive Tuned Mass Damper and Base Isolation Using Active Control Algorithms." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/vk9nw5.

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碩士<br>國立臺灣大學<br>土木工程學研究所<br>105<br>Seismic isolation and tuned mass damper (TMD) have been widely accepted as a passive control strategy for protection of structures. A base-isolated building employs a flexible element underneath the structure that shifts the fundamental frequency of the building away from the dominant frequencies of earthquakes. Due to the fact that the flexible element can introduce excessive displacements at base during severe earthquakes, additional viscous damping devices are recommended to be installed along with the isolation layer in most seismic design codes. On the o

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16

Liu, Yu-Fang, and 劉郁芳. "Analytical and experimental studies on Building Mass Damper System with Semi-active Control Device." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/975hsj.

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博士<br>國立臺灣大學<br>土木工程學研究所<br>106<br>A concept of improving an optimum building mass damper (OBMD) system through a semi-active control method for enhancing the efficiency of controlling structural responses is proposed. The proposed concept entails replacing the passive fluid viscous dampers used in an OBMD system with semi-active magnetorheological (MR) dampers, thus transforming the system into a novel semi-active OBMD (SOBMD) system for better seismic performance. A numerical model based on the Bouc–Wen model with the interpolation technique was established to represent the behavior of the M

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Eason, Richard. "High amplitude response behavior of a linear oscillator-nonlinear absorber system: Identification, analysis, and attenuation by using a semi-active absorber in series." Thesis, 2013. http://hdl.handle.net/1911/71949.

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Auxiliary absorbers provide an effective means to attenuate the vibrations of a structural or mechanical system (the "primary structure"). The simplest auxiliary absorber, a tuned mass damper (TMD), provides reliable narrow-band attenuation but is not robust to the effects of detuning. Strongly nonlinear tuned mass dampers (NTMDs) are capable of wide-band, irreversible energy transfer known as "energy pumping" but can also exhibit high amplitude solutions which significantly amplify the response of the primary structure. Semi-active tuned mass dampers (STMDs) incorporate an actuating elemen

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18

Chen, Chia-Heng, and 陳家亨. "Optimal Vibration Control of a Building with Active Tuned Mass Damper Subject to Time-Varying Uncertainties." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/745bb8.

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碩士<br>國立高雄應用科技大學<br>機械工程系<br>105<br>This thesis studies the robust vibration control of a building with an active tuned mass damper (ATMD) subject to time-varying uncertainties. The LQG optimal control method and the the Hybrid Taguchi-Genetic Algorithm (HTGA) are used to design the state feedback gain matrix and observer gain matrix. And then, a sufficient condition in terms of linear matrix inequalities (LMIs) is employed to guarantee that the resulting control system in the presence of time-varying uncertainties is asymptotically stable. Finally, a simulation example is given to demonstrate

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19

Yong-KaiTsou and 鄒永楷. "Application of Servo-Motor Controlled Platform as Active Mass Damper on Vibration Control and its Experimental Verification." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/38421567502707923560.

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碩士<br>國立成功大學<br>土木工程學系碩博士班<br>100<br>The vibration mitigation performance of a conventional tuned mass damper system (TMD) is very sensitive to the fluctuation in tuning of the designed frequency to the natural frequency of the main system. Because of the stochastic characteristics of external loading and errors of identifying system parameters, an active mass damper (AMD) system with optimal selection on control parameters can enhance the designed performance with the help of a supplementary active force acted between the main system and the mass damper. In order to investigate the interactiv

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20

Pasala, Dharma Theja. "Seismic response control of structures using novel adaptive passive and semi-active variable stiffness and negative stiffness devices." Thesis, 2013. http://hdl.handle.net/1911/72017.

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Current seismic design practice promotes inelastic response in order to reduce the design forces. By allowing the structure to yield while increasing the ductility of the structure, the global forces can be kept within the limited bounds dictated by the yield strength. However, during severe earthquakes, the structures undergo significant inelastic deformations leading to stiffness and strength degradation, increased interstory drifts, and damage with residual drift. The research presented in this thesis has three components that seek to address these challenges. To prevent the inelastic eff

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21

Chen, Jia-Xian, and 陳家賢. "Optimal and Fuzzy Vibration Control of Bridge TowerUsing Active and Passive Tuned Mass Dampers." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/77902646983322314709.

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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>94<br>Large span bridges supported by cables such as suspension bridges and cable-stayed bridges are widely used recently. However, the structure of bridge towers is often characterized by light mass, high strength but low stiffness and thus subjected to larger deflection than the bridge pier. Vibration of bridge towers often causes vibration of cable ropes and vice versa. Violent vibration of cable ropes has great influence on bridges and vehicles, it is very important to reduce vibration of bridge towers under various dynamic loadings. The research is aime

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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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23

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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Liu, Chieng-Ming, and 劉建泯. "Optimal and Fuzzy Vibration Control of Bridges Using Active and Passive Tuned Mass Dampers." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/96912065401465028615.

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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>93<br>The aseismic capacity of civil engineering structures is of the most importance in Taiwan due to its location near the common boundaries of Euro-Asian Plate and Pacific Plate. Bridges are the key communication channels for people in daily use and disaster rescue. The research is aimed at the optimal and fuzzy vibration control of bridges using passive and active tuned mass dampers (TMDs). Mathematical modeling of uncontrolled and controlled bridge structures are first built as single- and multi- degrees-of freedom dynamic systems, and then Runge-Kutta

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Yang, Fan. "Optimal vibration suppression of beam-type structures using passive and semi-active tuned mass dampers." Thesis, 2008. http://spectrum.library.concordia.ca/975194/1/NR45683.pdf.

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The overall aim of this dissertation is to conduct a comprehensive investigation on the design optimization for passive and semi-active vibration suppression of beam-type structures utilizing the Tuned Mass Damper (TMD) and Semi-Active Mass Damper (SAMD) to prevent discomfort, damage or outright structural failure through dissipating the vibratory energy effectively. The finite element model for general curved beams with variable curvatures under different assumptions (including/excluding the effects of the axial extensibility, shear deformation and rotary inertia) are developed and then uti

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Hsiao, Shuen-Fa, and 蕭順發. "Optimal and Fuzzy Vibration Control of Cable Cars Using Active and Passive Tuned Mass Dampers." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/79298942697217932071.

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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>97<br>The cable car has become a newly fresh tool for transportation and traveling in Taiwan with the activation of Mau-Kung Cable Car at July 4, 2007 and thus its safety and comfort become more important. This thesis is proposed to study dynamic behavior of the cable car system subjected to various external loads and the feasibility of vibration control of cable car system using active and passive tuned mass dampers (TMD). Two motions are considered: (1) longitudinal motion (single pendulum) (2) lateral motion (double pendulum). TMD was located at the botto

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Ku, Ting-Yu, and 顧丁與. "Application of Phase Control for Seismic Design of Passive and Semi-active Tuned Mass Dampers." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/47553516215147197243.

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碩士<br>國立臺灣大學<br>土木工程學研究所<br>100<br>The vibration suppression effect under base excition is proposed in this study that the optimal design for linear passive tuned mass damper (PTMD) and control algorithm of phase control for semi-active tuned mass damper (SATMD). Firstly, a linear tuned mass damper is installed on a single-degree-of-freedom (SDOF) system. The minimum mean square of structural displacement and absolute acceleration can be derived respectively under the white noise base acceleration. So the two methods of optimal parameters design for linear PTMD are proposed by using the iterat

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Yang, Shi-Han, and 楊璽瀚. "Optimal and Fuzzy Vibration Control of Elevator Cabinet Systems Using Active and Passive Tuned Mass Dampers." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/33802781805530603447.

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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>97<br>Recently elevators are more required in daily life and thus are designed with higher speed and capacity, however, their safety, stability and comfort should be more carefully examined. How to reduce the vibration of elevator in motion subjected various external excitations is a major problem in elevator engineering. The thesis is proposed to study the dynamic responses and vibration reduction of elevator cabinet in motion with added tuned mass dampers (TMD). TMD is embed at the bottom of elevator. Lumped mass models are employed for the elevator and TM

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29

Chen, Yu-Chin, and 陳昱志. "Optimal and Fuzzy Vibration Control of Buildings Using Active and Passive Twist-Resisting Tuned Mass Dampers." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/10450742424177137797.

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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>93<br>Most of the modern high-rise buildings are built with high strength-to-mass ratio and flexibility thus leads to large deformations and amplitudes of vibration when subjected to dynamic loads such as wind and earthquake. If the shear center is not located at exactly the center of gravity, significant twisting moment would take place and cause large rotational deformation which in turn would cause failure of the structures. The research is proposed to investigate the optimal and fuzzy vibration control of buildings using passive and active twist-resistin

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Wang, Kuan-Chieh, and 王冠傑. "Optimal and Fuzzy Vibration Control of Vehicle Dynamic Systems Using Active and Passive Tuned Mass Dampers." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/30093897813449873979.

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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>94<br>Recently the rapid and mass transit system (RMT) has become the major transportation tool for daily use and its safety and comfort is very important to people. The oscillation of cars of RMT can be described in forward/backward translation, vertical translation, pitching and rolling modes. This thesis is proposed to study the application of passive and active tuned mass dampers (TMD) to the cars of RMT subjected to free vibrations and various forced vibrations using the typical single-car rigid model, wherein optimal and fuzzy control strategies are in

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Her, Chi-Zheng, and 何啓正. "Optimal and Fuzzy Vibration Control of Tower-Pier System Using Active and Passive Tuned Mass Dampers." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/46568471809401936738.

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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>95<br>The safety of bridge is very important in civil engineering. This thesis is aimed to study the dynamic behavior of tower-pier system subject to various external loads. Rigid body motions are considered which include horizontal displacement), vertical displacement, rotational angle of tower-pier system and horizontal displacement of cable. Further the application of passive and active tuned mass dampers (TMD) to vibration suppression of tower-pier system is conducted. The equations of motions of tower-pier system, without and with TMD, are derived first

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He, Yu-Bo, and 何玉泊. "Shaking table test and vibration control analysis of semi-actively friction-typed tuned mass dampers." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/85181474766679202330.

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碩士<br>國立中興大學<br>土木工程學系所<br>98<br>A TMD system consists of an added mass with properly functioning spring and damping elements that provide frequency-dependent damping in a primary structure. The design and application of linear typed tuned mass damper systems are well developed, nonlinear TMD systems are still developing. A friction-type TMD, i.e. a nonlinear TMD, has the advantages of energy dissipation via a friction mechanism. However, a passive-friction TMD (PF-TMD) has such disadvantages as a fixed and pre-determined slip load and the PF-TMD may lose its tuning and energy dissipation abil

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Nai-Sheng, Yeh, and 葉乃昇. "Dynamic Analyses Of An Elastically Supported Beam Under The Action Of Moving Loads By Means Of Moving Spring-Damper-Mass Element." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/60404432526327168277.

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碩士<br>國立高雄海洋科技大學<br>輪機工程研究所<br>100<br>This paper presents the theory of the moving spring-damper-mass element consists of a lumped mass, a roller, a spring and a damper, so that the inertia effects as well as spring and damping effects between the moving subsystem and the elastically supported beam can be easily taken into account the dynamic responses of the last two systems. Based on the dynamic equilibrium of the moving subsystem and the beam, the property matrices of the former were derived. Since the last property matrices have something to do with the position of the moving subsystem on

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