Vibration control characteristics of a hybrid mass damper system
Earthquake Engng Struct. Dyn. 2001; 30:1677–1696 (DOI: 10.1002/eqe.87). Vibration control characteristics of a hybrid mass damper system installed in tall ...
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Hybrid mass damper system for response control of building
ABSTRACT : A Hybrid Mass Damper (HMD) system is proposed to suppress the response of a tall building against ... an HMD system has been installed in an actual building to verify its capability. To ﬁnd out the ... developed for vibration control of high-rise buildings ... characteristics of the building and the HMD system. The.
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State-of-the-art report of active and hybrid control research in Japan
response control systems for building structures and bridges. ... An active mass damper system which could operate in. 7096 ? ... dampers.[61 An auxiliary mass installed on the ... the system actively controls the vibration characteristics of a.
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Special Issue of the IEEE Control Systems - Smart Structures
A control system was installed, consisting of two. Fig. 1. ... active system is to reduce building vibration under strong winds ... mass damper systems, and ii) hybrid base isolation. Hybrid Mass Damper. The hybrid mass damper (HMD) is the most common con- ... to changes in the dynamic characteristics of the structure. The.
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Smart structures: Part II — Hybrid control systems and control
Jun 12, 2011 ... They installed two such devices in an actual 36-story, steel-frame, high-rise ...... Vibration control characteristic of a hybrid mass damper system ...
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Hybrid Mass Dampers for Canton Tower - ctbuh - Council on Tall
“The Hybrid Mass Damper (HMD) system possesses ... monitoring and vibration control in China, studying both theoretical ... bearing is installed between the main tower roof and water .... a two-stage damping characteristic – a high and a low ...
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Seismic Response Control Systems for Structures - DRDO
functioning and serviceability of machines and equipment installed therein are ... structural control system tree is shown in Fig.1. ... damaging effects of vibrations caused by seismic forces ... Hybrid. Base Isolation. Passive Energy. Dissipation. Tuned mass dampers .... The desirable features of these devices are stable.
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Semiactive control strategies for vibration mitigation in adaptronic
It is an extended practice to install damping devices in order .... mass. M mass matrix. P. Control system plant. r1, r2, r3, r4. Adaptive ... MR damper force/ displacement scaling factors for real time hybrid testing. u ..... of them addresses the problem accounting for all the system characteristics as mentioned previously . It.
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Semi-active Tuned Mass Damper for Seismic Applications - NDT.net
Nov 4, 2011 ... (MTMD) are usually used for vibration control of long-span bridges under critical wind . Active tuned ... Hybrid mass damper consists of a small AMD system attached to a. TMD. ... installed 1.73% TMD mass in a 39story building. .... To help understanding the characteristics of semi active tuned mass system,.
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Seismic structural control using an electric servomotor active mass
a servo-control system, a mass block, vibration sensors and a data ...... K. Vibration control characteristics of a hybrid mass damper system installed in tall.
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acceleration feedback control strategies for active and semi-active
which are appropriate for semi-active control systems are developed and applied . The ... 1.1.2 Hybrid Structural Control Systems . .... 8. Figure 1.3. V-Shaped Hybrid Mass Damper. ..... Summary of the Physical Characteristics of MR and ..... Two active mass drivers were installed on the top floor to reduce structural vibrations.
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Development and Experimental Validation of a New Control
Control designs that are able to take these characteristics into account ..... outfitted with TLCDs to mitigate the effects of wind-induced vibration (Kareem et al. 1999). .... passive control tuned-mass damper and an active control actuator. ... hybrid control systems, including the V-shaped HMD (Figure 1.7) installed in the. .
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Recent Structural Applications of Active Control Technology T.T.
and two hybrid mass damper systems installed in two actual buildings. ... systems are summarized together with their performance characteristics. Observed .... ing instantaneously to structural vibrations induced by wind or earthquakes. A.
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Recent Advances in Bidirectional Modeling and Structural Control
Sep 29, 2015 ... on various passive, semiactive, and hybrid control system applied to control the ..... installed to suppress the external vibrations. These structural ... tuned mass dampers with different dynamic characteristics. The main system ...
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State of the Art of Structural Control - Satish Nagarajaiah
alternative to active and hybrid control systems for structural vi- ... base isolation systems, viscoelastic dampers, and tuned mass dampers, are well ... system is to reduce building vibration under strong winds and ... mental system installed on a bridge in Oklahoma Patten et al. (1999) ..... The essential characteristic of these.
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1 7th International Seminar on Seismic Isolation, Passive Energy
of these researches, hybrid mass damper system was actually applied to the air traffic ... installed on the 30m high full-scale test building and various vibration control .... characteristics of the tower were determined through the wind tunnel tests ...
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Active Structural Control - Springer
A recent survey on active, semi-active, and hybrid control devices and some control ... The objective of structural control system is to reduce the vibration and to ... the characteristics of the materials of the structure and its foundation (soil- structure ... nents: the mass componentm, the damping componentc, and the stiffness ...
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Development of a hybrid vibration experiment system for
KEYWORDS: Hybrid vibration experiment, Tuned mass damper, ... fluid, it is comparatively difficult to predict the characteristics of tuned liquid dampers that ... system. The driver installed in the computer orders the actuator to produce the building ... Controller. Load cell. Actuator. Shaking table. TMD. Numerical modeling.
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behavior is expressed as a second order lineal system of equations, ... This reduction is sensitive to the design characteristics of ... have been shown to be able to successfully control vibrations induced by winds [1-3], and have ... traditional Tuned Mass Dampers (TMDs), they are attractive because of lower installation costs,.
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chapter 2 literature review - Shodhganga
polynomial function of non-linear states, which satisfies all the properties of a. Lyapunov ... Active, semi active and hybrid control systems have the ability to adapt to ... devices and mass dampers are the main isolation systems. An idea ..... vibration control of buildings has been installed in three buildings in order to improve ...
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