Shaking table substructure testing based on three-variable control method with velocity positive feedback
To improve the experimental accuracy and stability of shaking table substructure testing (STST), an explicit central difference method (CDM) and a three-variable control method (TVCM) with velocity positive feedback (VPF) are proposed in this study. First, the explicit CDM is presented for obtaining...
| Main Authors: | , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/146186 |
| _version_ | 1811695911121715200 |
|---|---|
| author | Xu, Guoshan Wang, Zhen Bao, Yintong Yang, Ge Wu, Bin |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Xu, Guoshan Wang, Zhen Bao, Yintong Yang, Ge Wu, Bin |
| author_sort | Xu, Guoshan |
| collection | NTU |
| description | To improve the experimental accuracy and stability of shaking table substructure testing (STST), an explicit central difference method (CDM) and a three-variable control method (TVCM) with velocity positive feedback (VPF) are proposed in this study. First, the explicit CDM is presented for obtaining an improved control accuracy of the boundary conditions between the numerical and experimental substructures of STST. Compared with the traditional CDM, the proposed method can provide explicit control targets for displacement, velocity, and acceleration. Furthermore, a TVCM-VPF is proposed to improve the control stability and accuracy for loading the explicit control targets of displacement, velocity, and acceleration. The effectiveness of the proposed methods is validated by experiments on a three-story frame structure with a tuned liquid damper loaded on an old shaking table originally designed with the traditional displacement control mode. The experimental results show that the proposed explicit CDM works well, and the response rate and control accuracy of the shaking table are significantly improved with the contribution of the TVCM-VPF compared with those of the traditional proportional integral derivative (PID) controller. This indicates the advantage of the proposed TVCM-VPF over the traditional PID for STST. A comparison between the traditional shaking table test and STST shows that when the latter is based on the TVCM-VPF, it exhibits an excellent performance in terms of the stability and accuracy of displacement and an acceptable performance in terms of the acceleration accuracy. |
| first_indexed | 2024-10-01T07:30:59Z |
| format | Journal Article |
| id | ntu-10356/146186 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:30:59Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1461862021-01-29T06:07:00Z Shaking table substructure testing based on three-variable control method with velocity positive feedback Xu, Guoshan Wang, Zhen Bao, Yintong Yang, Ge Wu, Bin School of Civil and Environmental Engineering Engineering::Civil engineering Shaking Table Substructure Testing Velocity Positive Feedback Control To improve the experimental accuracy and stability of shaking table substructure testing (STST), an explicit central difference method (CDM) and a three-variable control method (TVCM) with velocity positive feedback (VPF) are proposed in this study. First, the explicit CDM is presented for obtaining an improved control accuracy of the boundary conditions between the numerical and experimental substructures of STST. Compared with the traditional CDM, the proposed method can provide explicit control targets for displacement, velocity, and acceleration. Furthermore, a TVCM-VPF is proposed to improve the control stability and accuracy for loading the explicit control targets of displacement, velocity, and acceleration. The effectiveness of the proposed methods is validated by experiments on a three-story frame structure with a tuned liquid damper loaded on an old shaking table originally designed with the traditional displacement control mode. The experimental results show that the proposed explicit CDM works well, and the response rate and control accuracy of the shaking table are significantly improved with the contribution of the TVCM-VPF compared with those of the traditional proportional integral derivative (PID) controller. This indicates the advantage of the proposed TVCM-VPF over the traditional PID for STST. A comparison between the traditional shaking table test and STST shows that when the latter is based on the TVCM-VPF, it exhibits an excellent performance in terms of the stability and accuracy of displacement and an acceptable performance in terms of the acceleration accuracy. Published version 2021-01-29T06:06:59Z 2021-01-29T06:06:59Z 2020 Journal Article Xu, G., Wang, Z., Bao, Y., Yang, G., & Wu, B. (2020). Shaking table substructure testing based on three-variable control method with velocity positive feedback. Applied Sciences, 10(16), 5414-. doi:10.3390/app10165414 2076-3417 https://hdl.handle.net/10356/146186 10.3390/app10165414 16 10 en Applied Sciences © 2020 The Author(s). Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution(CC BY) license (http://creativecommons.org/licenses/by/4.0/). application/pdf |
| spellingShingle | Engineering::Civil engineering Shaking Table Substructure Testing Velocity Positive Feedback Control Xu, Guoshan Wang, Zhen Bao, Yintong Yang, Ge Wu, Bin Shaking table substructure testing based on three-variable control method with velocity positive feedback |
| title | Shaking table substructure testing based on three-variable control method with velocity positive feedback |
| title_full | Shaking table substructure testing based on three-variable control method with velocity positive feedback |
| title_fullStr | Shaking table substructure testing based on three-variable control method with velocity positive feedback |
| title_full_unstemmed | Shaking table substructure testing based on three-variable control method with velocity positive feedback |
| title_short | Shaking table substructure testing based on three-variable control method with velocity positive feedback |
| title_sort | shaking table substructure testing based on three variable control method with velocity positive feedback |
| topic | Engineering::Civil engineering Shaking Table Substructure Testing Velocity Positive Feedback Control |
| url | https://hdl.handle.net/10356/146186 |
| work_keys_str_mv | AT xuguoshan shakingtablesubstructuretestingbasedonthreevariablecontrolmethodwithvelocitypositivefeedback AT wangzhen shakingtablesubstructuretestingbasedonthreevariablecontrolmethodwithvelocitypositivefeedback AT baoyintong shakingtablesubstructuretestingbasedonthreevariablecontrolmethodwithvelocitypositivefeedback AT yangge shakingtablesubstructuretestingbasedonthreevariablecontrolmethodwithvelocitypositivefeedback AT wubin shakingtablesubstructuretestingbasedonthreevariablecontrolmethodwithvelocitypositivefeedback |