Development of a large scale hybrid shake table and application to testing a friction slider isolated system

A unidirectional hybrid control shake table was constructed at the NEES lab at the University of California Berkeley. The 2 m by 6 m table is controlled using an MTS 493 Real-Time Controller. The control system provides PID closed loop control. The ability to have real-time hybrid shake table control is especially important for systems that have strong rate dependencies, such as friction sliding systems. A series of tests was carried out using …