This study applies the digital Real-Time Hybrid Testing with a Shake Table (RTHT‐ST) method to verify the control performance of the Polynomial Sliding Isolators with Variable Curvature - Floor Isolation System (PSIVCFIS). The Hardware-in-the-loop (HIL) simulation is also used in this research, where both primary structures and subsystems are numerical models embedded in the single-task processor environment, with real-time communication through the shared common RAM network hardware (SCRAMNet) with optical fiber interface (digital) or the traditional Analog-to-Digital/Digital-to-Ananlog (AD/DA) converters with BNC connectors (analog). The dynamic characteristics and operational limitations of the shake table are analyzed through the HIL simulation before and after the digital RTHT‐ST to ensure system stability, equipment safety, and to investigate the key issue related to the discrepancy between the Shaking Table Test (STT) and the digital RTHT-ST. The adopted control device, the PSIVCFIS, is tested as a subsystem through the digital RTHT-ST using the Multi-Axial Seismic Test (MAST) system at the southern branch of the National Center for Research on Earthquake Engineering (NCREE). The passive control performance is compared with its STT results conducted earlier using the shaking table at the northern branch of the NCREE.
Key Words
hardware-in-the-loop; multi-axial seismic test system; polynomial sliding isolators with variable curvature; real-time hybrid testing with a shake table; SCRAMNet; shaking table test
Address
(1) Qi-Yang Liao, Shih-Yu Chu, Yan Tang — Department of Civil Engineering, National Cheng Kung University, No.1, University Road, Tainan, Taiwan
(2) Chan-Jung Kang — Department of Civil Engineering, I-Shou University, No.1, Sec. 1, Syuecheng Road, Kaohsiung, Taiwan
(3) Yun-Hsi Lai — Department of Civil & Building, CTCI Corporation, Taipei, Taiwan
