Simple ATMD Control Methodology for Tall Buildings Subject to Wind Loads

Ankireddi, Seshasayee; Yang, Henry T. Y.

doi:10.1061/(asce)0733-9445(1996)122:1(83)

Cited by 117 publications

(59 citation statements)

References 9 publications

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“…The linear quadratic regulator algorithm developed by several authors [Chang and Soong 1980;Abe 1996;Ikeda 1997;Nagashima 2001] may be employed, but here we choose instead the frequency domain design method adopted by some others [Chang and Yang 1995;Ankireddi and Yang 1996;Yan et al 1999]. In this method one starts with the optimum MTMD configuration, obtained earlier.…”

Section: Damping Of Asymmetric Structuresmentioning

confidence: 99%

“…However, neither the robustness against change nor the estimation error in the structural natural frequency of ATMDs can be compared with that of MTMDs. Investigations in optimizing the feedback gains and damper characteristics of ATMDs in order to minimize structural displacements and/or accelerations have been carried out, for example, in [Chang and Yang 1995;Ankireddi and Yang 1996;Yan et al 1999]. However, as a building gets taller and more massive, in order to achieve the required level of response reduction during strong earthquakes or typhoons, a heavier additional mass is required, requiring too much space to be economically practical.…”

Section: Introductionmentioning

confidence: 99%

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Performance and parametric study of active multiple tuned mass dampers for asymmetric structures under ground acceleration

et al. 2009

J. Mech. Mater. Struct.

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The application of active multiple tuned mass dampers (AMTMD) for suppressing translational and torsional responses is addressed for a simplified two-degree of freedom structure, able to represent the dynamic characteristics of general asymmetric structures subject to ground motions. By employing the developed optimum parameter and effectiveness criteria of the AMTMD, the influences of the normalized eccentricity ratio and the torsional-to-translational frequency ratio of asymmetric structures on the optimum parameters and effectiveness of the AMTMD are investigated in detail. For comparison purposes, the results of a single active tuned mass damper also are taken into consideration.A list of symbols can be found starting on page 584.

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Section: Damping Of Asymmetric Structuresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance and parametric study of active multiple tuned mass dampers for asymmetric structures under ground acceleration

et al. 2009

J. Mech. Mater. Struct.

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“…In the present paper, the frequency domain design method [Chang and Yang 1995;Ankireddi and Yang 1996;Yan et al 1999] is employed for designing the LT-AMTMD. In this method, the optimum LT-MTMD, as obtained earlier, is utilized.…”

Section: Transfer Functions (Tfs) Of the Lt-amtmd Structure Systemmentioning

confidence: 99%

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2008

JOMMS

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See inside back cover or http://www.jomms.org for submission guidelines.Regular subscription rate: $500 a year. We study an axially symmetric frictionless contact problem between a nonhomogeneous elastic halfspace and a rigid base that has a small axisymmetric surface recess. We reduce the problem to solving Fredholm integral equations, solve these equations numerically, and establish a relationship between the applied pressure and the gap radius. We find and graph the effects of nonhomogeneity on the normal pressure, critical pressure and on the surface displacement.

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“…4,29,24,25). Active control of a 40-storey building subject to wind turbulences will be considered to illustrate the application of sliding mode control with compensator based on different reduced-order systems.…”

Section: Example 3: Control Of Wind-excited 40-storey Buildingmentioning

confidence: 99%

Sliding mode control with compensator for wind and seismic response control

Yang

Agrawal

et al. 1997

Earthquake Engng. Struct. Dyn.

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SUMMARYRecently, it has been demonstrated that control techniques based on sliding mode control (SMC) are robust and their performances are quite remarkable for applications to active/hybrid control of seismic-excited linear, non-linear or hysteretic civil engineering structures. In this paper, sliding mode control methods are further extended by introducing a compensator. The incorporation of a compensator provides (i) a convenient way of making trade-offs between control efforts and specific response quantities of the structure through the use of linear quadratic optimal control theory, and (ii) a convenient design procedure for static output feedback controllers to facilitate practical implementations of control systems. Since civil engineering structures generally involve excessive degrees of freedom, a controller design based on a full-order system may be difficult, in particular for wind-excited tall buildings. In this paper, three reduced-order control methods have been used and their performances have been investigated. Applications of sliding mode control with compensators to active control of buildings subject to either earthquakes or strong wind gusts have been demonstrated through numerical simulations. Simulation results show that the performance of the sliding mode controller with compensators for the reduced-order system is quite close to that of the controller based on the full-order system as long as enough vibrational modes are taken into account in the reduced-order system.

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Simple ATMD Control Methodology for Tall Buildings Subject to Wind Loads

Cited by 117 publications

References 9 publications

Performance and parametric study of active multiple tuned mass dampers for asymmetric structures under ground acceleration

Performance and parametric study of active multiple tuned mass dampers for asymmetric structures under ground acceleration

Untitled

Sliding mode control with compensator for wind and seismic response control

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