Real-time hybrid simulation approach for performance validation of structural active control systems: a linear motor actuator based active mass driver case study

Abstract

SUMMARY Small‐scale models have been commonly utilized in testing of performance of active mass driver (AMD) control systems. The utmost reason is that physical testing of AMD system at full scale is usually too expensive to afford, as well as hard to implement on site. With reference to the real‐time hybrid simulation technology, a real‐time AMD subsystem testing method is proposed in this paper. In this method, the entire system is composed of AMD as physical subsystem and target structure as numerical subsystem. The physical test is conducted on AMD subsystem, whereas the numerical simulation is carried out on the structure subsystem. Meanwhile, the real‐time data are being communicated between these two subsystems. This method is then applied to the performance validation of a novel AMD control system, which is driven by a linear motor. In the test, a benchmark three‐storey frame structure is employed as the numerical subsystem, and earthquake excitations are used as the external input. On the basis of a series of tests, both the time history and the statistical criteria show that the results of AMD subsystem and structure subsystem obtained in the real‐time AMD subsystem test agree well with the simulation results. Furthermore, all the test results show good repeatability. Therefore, the feasibility and reliability of the proposed real‐time AMD subsystem testing approach for performance validation of AMD subsystem has been demonstrated. Such kind of experimental method is efficient in terms of reducing cost associated with performance validation of large‐scale active control systems prior to the implementation. Copyright © 2013 John Wiley & Sons, Ltd.

Numerical Investigation of a Tuned Heave Plate Energy-Harvesting System of a Semi-Submersible Platform

“…The tuned mass damper (TMD) is an effective way for the vibration control of structures and has been fully developed since Frahm [10] proposed the first tuned mass damper in his patent in 1911. Since then, many adaptive, semi-active and active methods for improving the performance of the TMD have been developed [11][12][13] and realized in practical engineering projects [14][15][16]. The dampers are adapted in conventional TMDs, and the energy absorbed by a TMD system is converted to heat and dissipated in the damper.…”

A State Feedback Controller Based on GCC Algorithm against Wind‐Induced Motion for High‐Rise Buildings with Parametric Uncertainties

“…A compensation controller based on the GCC algorithm for the ten-storey frame is used 6 Shock and Vibration as an example. After adjusting, Q 8 , Q 11 , and R are taken as 6 × 10 4 , 3 × 10 2 , and 1 × 10 −3 , respectively, and the weight coe cients of other oors are all de ned as one.…”

“…A passive tuned mass damper (TMD) [1][2][3] and an active mass damper/driver (AMD) [4][5][6][7] are usually used to suppress the horizontal dynamic responses of high-rise buildings against an environmental loading such as strong winds and earthquakes. As a TMD control system is relatively simple, economic, and reliable, the practical applications of TMDs are more extensive than those of AMDs.…”

“…For instance, the experimental validation built the foundation for structural vibration control utilizing an innovative electromagnetic mass driver system in [5]. Combining the simulation analysis and physical test, an AMD subsystem testing method was proposed in [6]. Furthermore, the linear quadratic regulator (LQR) algorithm is a common design method of AMD control systems [9,10], but it requires the accurate mathematical model of a target building.…”

Robustness of the Active Rotary Inertia Driver System for Structural Swing Vibration Control Subjected to Multi-Type Hazard Excitations

“…Based on many practical applications and studies, the observation result shows that traditional vibration control devices such as the tuned mass damper (TMD) [4][5][6][7][8][9][10][11], tuned liquid damper (TLD) [12,13], particle damper (PD) [14], pounding tuned mass damper (PTMD) [15][16][17], and frictional tuned mass damper [18,19], are reliable and efficient for civil engineering structures. Active Mass Dampers (AMD) [20][21][22][23][24][25][26][27] have been widely studied in civil engineering for their superior effectiveness and larger spectral bandwidth [28][29][30][31][32]. There are many kinds of active [33][34][35][36] and semi-active [37] control devices for structural vibration control.…”