Dynamic testing of structural active control system based on a hybrid test-simulation method

Chunwei Zhang, Huaibing Xu, Hui Li, Jinping Ou

    Research output: Chapter in Book / Conference PaperConference Paperpeer-review

    Abstract

    ![CDATA[As civil engineering structures are usually very huge in volume and heavy in weight, full scale or large scale model tests are uneconomical or infeasible sometimes, therefore, small scale model tests have been widely used in previous relevant experiments for validating dynamic performance of structural active control systems. However, small scale models are not reliable due to its limitations in reflecting all properties of a full scale control system. From a practical point of view, this may potentially result in the loss of control efficiency and stability of structural active control system. Therefore, a compromise approach is quite necessary to examine and validate performance of a full scale structural control system, particularly active control system. In this paper, a comprehensive dynamic testing approach for evaluating structural active control system, i.e. Active Mass Driver (AMD), is proposed based on Real-time Substructure Testing (RTST) method, or so called Hybrid Test-Simulation (HTS) method. In this proposed approach, both physical subsystem and numerical subsystem are established independently. Partial structural response is feedback from the numerical structure, meanwhile AMD response is physically measured online. The optimal control force is calculated based on a certain control algorithm or control strategy. Then, the computed optimal force is commanded to the active control execution part and applied to the numerical structural model simultaneously. Repeating such procedures in the following time steps until the final time step or convergence error is reached. Such a kind of testing method is cost effective for evaluating active control system when it is considered to be installed into a full scale structure. Furthermore, multiple objectives can be achievable through whether or not incorporating structural control algorithm into dynamic performance tests.]]
    Original languageEnglish
    Title of host publicationProceedings of the 2011 Australian Earthquake Engineering Society Conference (AEES 2011), 18-20 November, Barossa Valley, South Australia
    PublisherAustralian Earthquake Engineering Society
    Number of pages8
    Publication statusPublished - 2011
    EventAustralian Earthquake Engineering Society. Conference -
    Duration: 18 Nov 2011 → …

    Conference

    ConferenceAustralian Earthquake Engineering Society. Conference
    Period18/11/11 → …

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