Development of a new servo-hydraulic earthquake actuator for the 400 g-ton centrifuge at the university of colorado Boulder

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26610%2F22%3APU145873" target="_blank" >RIV/00216305:26610/22:PU145873 - isvavai.cz</a>
Result on the web
<a href="https://sigongji.icpmg2022.org/wp/Home.asp" target="_blank" >https://sigongji.icpmg2022.org/wp/Home.asp</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Development of a new servo-hydraulic earthquake actuator for the 400 g-ton centrifuge at the university of colorado Boulder
Original language description
Dynamic centrifuge modelling enables cost effective studies of the complex seismic response of soil and soil-structure systems. However, centrifuge scaling laws necessitate an increase between the full scale and applied model accelerations, and shaking frequencies, by the model scale factor. This can translate to challenging mechanical, hydraulic, and control demands on the shake table system. In this paper, we detail the development of a new 1-DOF horizontal servo-hydraulic earthquake actuator on the 400 g-ton centrifuge at the University of Colorado Boulder. The mechanical and servo-hydraulic systems are discussed, highlighting both general design aspects and considerations specific to the Boulder centrifuge with the goal of maximizing payload, acceleration, and frequency range capabilities under increased gravity. The two-level control system is described; displacement, velocity and oil pressure feedback are used for closed loop control of the table position whilst acceleration feedback is used to
Czech name
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Czech description
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Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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