Optimal placement of energy dissipation devices for three-dimensional structures

Wu, Bo; Ou, Jinping; Soong, T. T.

doi:10.1016/s0141-0296(96)00034-x

Cited by 84 publications

(38 citation statements)

References 4 publications

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“…The design aspect of structures equipped with passive devices has been considered by many researchers [19][20][21]. Nakashima et al [21] described that the first yielding, i.e.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of steel slit damper for passive energy dissipation

Chan

Albermani

2008

Engineering Structures

366

144

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“…The design aspect of structures equipped with passive devices has been considered by many researchers [19][20][21]. Nakashima et al [21] described that the first yielding, i.e.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of steel slit damper for passive energy dissipation

Chan

Albermani

2008

Engineering Structures

366

144

View full text Add to dashboard Cite

“…Over many years, research efforts have been aimed at reliable and cost-effective design practices. Optimal design methodologies for passive dampers based on a number of theories have been proposed for determining both damper sizes as in [7][8][9][10][11] and damper locations as in [12][13][14][15] among others. They commonly differ on how the optimisation problem is addressed and in which cost function and constraints the optimisation problem are subjected to.…”

Section: Introductionmentioning

confidence: 99%

Supporting brace sizing in structures with added linear viscous fluid dampers: A filter design solution

Londoño

Wagg

Neild

2014

Earthq Engng Struct Dyn

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SUMMARYViscous fluid dampers have proved to be effective in suppressing unwanted vibrations in a range of engineering structures. When dampers are fitted in a structure, a brace is typically used to attach them to the main structure. The stiffness of this brace can significantly alter the effectiveness of the damper, and in structures with multiple dampers, this can be a complex scenario to model. In this paper, we demonstrate that the effects of the brace compliance on the damper performance can be modelled by way of a first-order filter. We use this result to formulate a procedure that calculates the stiffness required by the supporting brace to provide a specified effectiveness of the damping action. The proposed procedure assumes that viscous dampers have been sized in a previous design step based on any optimal methodology in which, as is usually the case, the presence of supporting braces and their dynamic effects were neglected. Firstly considering a one degree-of-freedom system, we show that the proposed method ensures a desired level of damper efficiency for all frequencies within a selected bandwidth. Then the analysis is extended to the case of multi-degree-of-freedom systems to show that the design criteria can be applied in a straightforward and successful manner to more complex structures.

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“…Takewaki (1997) [14] used a gradient-based approach to search for an optimal placement. Teng et al (1992) [15] and Xu et al (2002) [16] developed an incremental algorithm and Wu et al (1997) [17] used both iterative and sequential approaches. Zhang et al (1992) [18] and Lopez et al (2002) [19] proposed sequential search methods for optimal damper placement.…”

Section: Introductionmentioning

confidence: 99%

Evolutionary Constrained Design of Seismically Excited Buildings: Sensor Placement

Rowhanimanesh

Khajekaramodin

Akbarzadeh-T

2009

Advances in Intelligent and Soft Computing

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Abstract. Appropriate sensor placement can strongly influence the control performance of structures. However, there is not yet a systematic method for sensor placement. In this paper, a general method based on a proposed constrained GA is suggested to optimally place sensors in structures. The optimal placement scheme is general for passive, active and semi-active controls and it does not depend on the control strategy and nonlinear dynamics of the control system. Due to low cost, high reliability, control effectiveness as well as installation simplicity, acceleration type sensors are considered. The proposed method is applicable to new or existing buildings, as the accelerometer placement is trivial. The efficiency of proposed method is evaluated on the benchmark building for placement of 5 and 3 sensors. The results show that the performance of control system with 5 and even 3 optimally placed sensors is at least 8% better than the original benchmark building design with 5 sensors. Generally, the proposed method is a simple and efficient practical approach to achieve improved performance using the fewest number of instruments.

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Optimal placement of energy dissipation devices for three-dimensional structures

Cited by 84 publications

References 4 publications

Experimental study of steel slit damper for passive energy dissipation

Experimental study of steel slit damper for passive energy dissipation

Supporting brace sizing in structures with added linear viscous fluid dampers: A filter design solution

Evolutionary Constrained Design of Seismically Excited Buildings: Sensor Placement

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