【摘 要】
:
The electromagnetic mass damper (EMD) control system, as an innovative active control system to reducestructural vibration, offers many advantages over traditio
【机 构】
:
School of Civil Engineering,School of Civil and Hydraulic Engineering
论文部分内容阅读
The electromagnetic mass damper (EMD) control system, as an innovative active control system to reducestructural vibration, offers many advantages over traditional active mass driver/damper (AMD) control systems. In this paper,studies of several EMD control strategies and bench-scale shaking table tests of a two-story model structure are described.First, two structural models corresponding to uncontrolled and Zeroed cases are developed, and parameters of these modelsare validated through sinusoidal sweep tests to provide a basis for establishing an accurate mathematical model for furtherstudies. Then, a simplified control strategy for the EMD system based on the pole assignment control algorithm is proposed.Moreover, ideal pole locations are derived and validated through a series of shaking table tests. Finally, three benchmarkearthquake ground motions and sinusoidal sweep waves are imposed onto the structure to investigate the effectiveness andfeasibility of using this type of innovative active control system for structural vibration control. In addition, the robustnessof the EMD system is examined. The test results show that the EMD system is an effective and robust system for the controlof structural vibrations.
其他文献
Suppose to toss an independent coin with equal probability of success and failure for each subset of [n]={l,2,…,n},and form the random hypergraph H(n) by takin
Microencapsulated n-alkanes as energy-storage materials have promising application prospects.The microcapsules containing 100-50 wt% of n-octadecane,0-20 wt% of
The unintentional islanding of micro-grid may cause negative impacts on distribution loads and distributed generations, so it must be detected within the accept
One kind of combustible gas alarms based on industrial Ethernet was designed to prevent the gas leakage in industrial production sites. The alarm adopted the hi
By means of the specific immuno-recognition and ultra-sensitive mass detection, a quartz crystal microbalance (QCM) biosensor for Escherichia coli O157:H7 detec
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7
Antimicrobial activity of organic and aqueous extracts from fruits, leaves and roots of Tribulus terrestris L., an Iraqi medicinal plant used as urinary anti-in
Selected-area deposition (SAD) of diamond films was achieved on silicon substrates with carbon film mask by hot filament chemical vapor deposition. Needle tip s
SINOPEC Research Institute of Petroleum Processing has developed a FCC catalyst to crack heavy oil feedstock to improve high-value products yield, and its comme
The hepatoprotective potential of earthworm extract (EE) (Lampito mauritii, Kinberg) was evaluated against paracetamol-induced liver injury in Wistar albino rat