Design approaches for active,semi-active and passive control systems based on analysis of characteristics of active control force

作     者：Ou Jinping Li Hui 

作者机构：School of Civil ＆ Hydraulic Engineering Dalian University of Technology Dalian 116024 China School of Civil Engineering Harbin Institute of Technology Harbin 150090 China 

基　　金：National Fundamental Research Program (973) Under Grant No. 2007CB714204 the R & D Program Under Grant No. 2006BAJ03B06 NSFC Under Grant No. 90815027 

出 版 物：《Earthquake Engineering and Engineering Vibration》 (地震工程与工程振动（英文刊）)

年 卷 期：2009年第8卷第4期

页      码：493-506页

摘      要：In this paper, the characteristics of forces in active control systems connected to adjacent levels of a building are analyzed. The following characteristics are observed： （1） active control can provide significantly superior supplemental damping to a building, but causes a small frequency shift; （2） the linear quadratic regulator （LQR）-based control force is composed of an elastic restoring force component and a damping force component, where the damping force is almost identical to the total control force, however, the elastic restoring force is very small; and （3） the active control forces prevent mction most of the time during the entire control process. These three characteristics imply that active control systems connected to adjacent levels of a building behave like passive damping devices with adjustable parameters, namely damping characteristics in an active control, which is the mechanism used by semi-active control devices to reach similar performance as active control systems. Two indices are defined to quantify the damping characteristics of control forces in active control systems. These two indices can also be used to quantify the capacity of semi-active control to achieve the perfonrlance of active control. Based on the above observations, two principles are founded for optimization of parameters of semi-active control devices and passive dampers. The first is that the maximum output force of a semi-active or passive device to be designed is identical to an active device, called ＂design principle＂. The other is the response equivalent principle, which states that the response of a building with semi-active or passive devices is the same as with active devices when the same maximum output force is applied. The design procedure for semi-active control devices and passive dampers is described in detail. Finally, numerical simulations of two benchmark problems is conducted to demonstrate the damping characteristics of active control and investigate the c

主 题 词：active control: semi-active control smart control damping design approach 

学科分类：1305[艺术学-设计学类] 13[艺术学] 081405[081405] 08[工学] 080203[080203] 081304[081304] 0802[工学-机械学] 0813[工学-化工与制药类] 0814[工学-地质类] 080201[080201] 

核心收录：

D　O　I：10.1007/s11803-009-9119-z

馆 藏 号：203810304...