Advances beyond transfer system dynamics compensation in real-time dynamic substructuring tests

摘要

Real-time dynamic substructuring tests, also known as hybrid tests, are critically affected by the dynamic nature of the actuators used to substitute the numerical substructure. These actuators are widely considered as transfer systems, which transfer magnitudes calculated via simulation of the numerical substructure to the physical substructure. Control engineering efforts in this area have, with few exceptions, traditionally been focused on compensation of the transfer system dynamics, in order to obtain perfect transfer systems. This article shows that the role of control systems in the context of real-time substructuring tests is not limited to transfer system dynamics compensation. Similarly, the role of actuators need not be that of transfer systems. As a result, a novel range of methods opens for actuator and control system design, which presents significant advantages over transfer systems with their corresponding dynamics compensation schemes.View full textDownload full textKeywordsdynamic substructuring, hybrid testing, control system design, transfer system dynamicsRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/00207179.2011.648956