Download PDF by Nikos D. Lagaros, Vagelis Plevris, Chara Ch Mitropoulou: Design Optimization of Active and Passive Structural Control

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By Nikos D. Lagaros, Vagelis Plevris, Chara Ch Mitropoulou

A standard engineering activity throughout the improvement of any method is, between others, to enhance its functionality when it comes to rate and reaction. advancements might be accomplished both through easily utilizing layout principles in response to the event or in an automatic method by utilizing optimization tools that result in optimal designs.

Design Optimization of lively and Passive Structural regulate Systems contains Earthquake Engineering and Tuned Mass Damper examine subject matters right into a quantity making the most of the connecting hyperlink among them, that is optimization. it is a book addressing the layout optimization of lively and passive keep watch over platforms. This name is ideal for engineers, execs, professors, and scholars alike, supplying innovative study and applications.

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2004). Nonlinear benchmark control problem for seismically excited buildings. Journal of Engineering Mechanics, 130(4), 366–385. 1061/(ASCE)0733-9399(2004)130:4(366) Soong, T. , & Dargush, G. (1997). Passive energy dissipation systems in structural engineering. Chichester, UK: John Wiley & Sons. Takewaki, I. (1997). Optimal damper placement for minimum transfer function. Earthquake Engineering & Structural Dynamics, 26(11), 1113–1124. , & Nakamura, T. (1996). Optimal viscous dampers for stiffness design of shear buildings.

5 × 10 kN m i = 7, , 8 i = 9, , 10 and it has been considered for determining the optimal locations of viscous dampers, by optimizing the objective functions described in the previous paragraph. 07 sec, and it is assumed a damping ratio of 5% on the first and the third mode. Dynamic properties of the building, Optimal Placement of Controller for Seismic Structures Figure 8. Structural response using sequential search algorithm (SS) with J3 and J4 performance index respectively Figure 9. Damper distributions using the maximum interstory drift (J4) 15 Optimal Placement of Controller for Seismic Structures Figure 10.

1%) are noted with solid lines. 10% peak interstory drift, thereby meeting the DBE design objective and reducing the bare frame drifts by more than half. Both the Takewaki and Lavan schemes result in peak interstory drifts best approaching a desirable, uniform drift distribution. The stiffness-proportional and uniform distributions produce the least uniform drift profiles, with the uniform scheme overdamping the upper floors and the stiffness-proportional approach overdamping the first floor such that floors three and four are not effectively damped.

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