Test Verification of Two-Stage Adaptive Delay Compensation Method for Real-Time Hybrid Simulation
Real-time hybrid simulation (RTHS) is a versatile testing technique for performance evaluation of structures subjected to dynamic excitations. Research revealed that compensation for the delay induced by the dynamics of the loading system and other factors is a critical issue for obtaining reliable...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/7848421 |
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| _version_ | 1832546978502803456 |
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| author | Zhen Wang Xueqi Yan Xizhan Ning Bin Wu |
| author_facet | Zhen Wang Xueqi Yan Xizhan Ning Bin Wu |
| author_sort | Zhen Wang |
| collection | DOAJ |
| description | Real-time hybrid simulation (RTHS) is a versatile testing technique for performance evaluation of structures subjected to dynamic excitations. Research revealed that compensation for the delay induced by the dynamics of the loading system and other factors is a critical issue for obtaining reliable test results. Lately, a two-stage adaptive delay compensation (TADC) method was conceived and performed on the benchmark problem of RTHS. For this method, the main part of the system delay is coarsely compensated by the classic polynomial extrapolation (PE) method; the second stage represents a fine remedy for the remaining delay with adaptive compensation based on a discrete model of the loading system. As an extension of this study, this paper aims to further verify and reveal the performance of this method through real tests on a viscous damper specimen. In particular, loading tests with a swept signal and RTHS with sinusoidal and seismic excitations were carried out. Investigations show that the TADC method is endowed with smaller parameter variation ranges, simple yet effective initialization or a soft-start process, less dependence on initial parameter estimation accuracy, and best compensation performance. |
| format | Article |
| id | doaj-art-dfe64ff6ad064eb8855e5fa35a177938 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-dfe64ff6ad064eb8855e5fa35a1779382025-02-03T06:46:28ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/78484217848421Test Verification of Two-Stage Adaptive Delay Compensation Method for Real-Time Hybrid SimulationZhen Wang0Xueqi Yan1Xizhan Ning2Bin Wu3Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, ChinaSchool of Civil Engineering, Harbin Institute of Technology, Harbin 150090, ChinaCollege of Civil Engineering, Huaqiao University, Xiamen 361021, ChinaSchool of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, ChinaReal-time hybrid simulation (RTHS) is a versatile testing technique for performance evaluation of structures subjected to dynamic excitations. Research revealed that compensation for the delay induced by the dynamics of the loading system and other factors is a critical issue for obtaining reliable test results. Lately, a two-stage adaptive delay compensation (TADC) method was conceived and performed on the benchmark problem of RTHS. For this method, the main part of the system delay is coarsely compensated by the classic polynomial extrapolation (PE) method; the second stage represents a fine remedy for the remaining delay with adaptive compensation based on a discrete model of the loading system. As an extension of this study, this paper aims to further verify and reveal the performance of this method through real tests on a viscous damper specimen. In particular, loading tests with a swept signal and RTHS with sinusoidal and seismic excitations were carried out. Investigations show that the TADC method is endowed with smaller parameter variation ranges, simple yet effective initialization or a soft-start process, less dependence on initial parameter estimation accuracy, and best compensation performance.http://dx.doi.org/10.1155/2020/7848421 |
| spellingShingle | Zhen Wang Xueqi Yan Xizhan Ning Bin Wu Test Verification of Two-Stage Adaptive Delay Compensation Method for Real-Time Hybrid Simulation Shock and Vibration |
| title | Test Verification of Two-Stage Adaptive Delay Compensation Method for Real-Time Hybrid Simulation |
| title_full | Test Verification of Two-Stage Adaptive Delay Compensation Method for Real-Time Hybrid Simulation |
| title_fullStr | Test Verification of Two-Stage Adaptive Delay Compensation Method for Real-Time Hybrid Simulation |
| title_full_unstemmed | Test Verification of Two-Stage Adaptive Delay Compensation Method for Real-Time Hybrid Simulation |
| title_short | Test Verification of Two-Stage Adaptive Delay Compensation Method for Real-Time Hybrid Simulation |
| title_sort | test verification of two stage adaptive delay compensation method for real time hybrid simulation |
| url | http://dx.doi.org/10.1155/2020/7848421 |
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