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Performance Examination of Nonlinear Signal-Based Control in Shake Table Experiments with Sliding Structures
https://nied-repo.bosai.go.jp/records/6349
https://nied-repo.bosai.go.jp/records/6349a71f91e0-e158-46e4-bbdb-e48e015b3bb5
| Item type | researchmap(1) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2024-05-13 | |||||||||||||
| タイトル | ||||||||||||||
| 言語 | en | |||||||||||||
| タイトル | Performance Examination of Nonlinear Signal-Based Control in Shake Table Experiments with Sliding Structures | |||||||||||||
| 著者 |
Ryuta Enokida
× Ryuta Enokida
× Kohju Ikago
× Jia Guo
× Koichi Kajiwara
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| 抄録 | ||||||||||||||
| 内容記述タイプ | Other | |||||||||||||
| 内容記述 | This study examines nonlinear signal-based control (NSBC) in shake table experiments with sliding structures, which have an isolation effect during an earthquake. NSBC uses a nonlinear signal obtained from the outputs of a controlled system and its linear model under the same input. Owing to the presence of the linear model, NSBC controllers are described by transfer functions, even for controlling nonlinear systems. NSBC achieved excellent control of the shake table in experiments with a specimen having nonlinear characteristics such as yielding of structural components. A sliding structure placed on a shake table significantly jeopardises its control because the nonlinear severity of sliding is greater than yielding, and its compensation has not yet been fully developed. Therefore, this study introduces NSBC into shake table experiments with sliding structures along with its linear model design to enhance their robustness, utilising the analysis stability to evaluate the design. Numerical simulations with a shake table with a sliding structure with a friction coefficient of 0.22 demonstrate the excellent performance of NSBC in table acceleration control. However, inversion-based control (IBC), a basic compensation approach, shows its ineffectiveness. In actual shake table experiments with a sliding structure with a friction coefficient of 0.2, NSBC with a reasonable linear model achieved excellent table acceleration control with almost 100% accuracy, whereas IBC was ineffective. This study clarifies that NSBC can solve the problem of control degradation caused by a sliding structure placed on the table. | |||||||||||||
| 言語 | en | |||||||||||||
| 書誌情報 |
en : Structural Control and Health Monitoring 巻 2023, p. 1-21, 発行日 2023-06-28 |
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| 出版者 | ||||||||||||||
| 言語 | en | |||||||||||||
| 出版者 | Hindawi Limited | |||||||||||||
| ISSN | ||||||||||||||
| 収録物識別子タイプ | EISSN | |||||||||||||
| 収録物識別子 | 1545-2263 | |||||||||||||
| DOI | ||||||||||||||
| 関連識別子 | 10.1155/2023/9526244 | |||||||||||||
