Real-time hybrid simulation in a shaking table configuration for parametric studies of high-voltage equipment and IEEE693 development

Günay, Selim; Mosalam, Khalid M.; Takhirov, Shakhzod

doi:10.1016/j.nucengdes.2015.05.020

Cited by 7 publications

(5 citation statements)

References 3 publications

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“…is study treated soil as the numerical substructure and the ES subsystem as the experimental substructure. e interaction between the soil and the structure was achieved by the data exchange of the coupling loads in equations (7)- (9). e soil was subjected to the load of the structure and the equipment equation (7).…”

Section: Equation Of Motion For An Ess Systemmentioning

confidence: 99%

“…e experimental substructures were subjected to loads applied by the shaking table, the numerical substructures were simulated with numerical analysis software, and interactive data communication occurred between them. is method reduced the scale of testing while maintaining acceptable accuracy [8][9][10]. For the application of real-time substructure tests on an ESS system, a key point is the calculation of the interaction effects between the soil and the ES subsystem.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the Effects of Soil on the Seismic Energy Responses of an Equipment‐Structure System via Substructure Shaking Table Testing

Luo

Jiang

2019

Shock and Vibration

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This study investigated the real-time substructure shaking table testing (RTSSTT) of an equipment-structure-soil (ESS) system and the effects of soil on the seismic energy responses of the equipment-structure (ES) subsystem. First, the branch modal substructure approach was employed to derive the formulas needed for the RTSSTT of the ESS system. Then, individual equations for calculating the energy responses of the equipment and the structure were provided. The ES subsystem was adopted as the experimental substructure, whereas the reduced soil model was treated as the numerical substructure when the RTSSTT was performed on the ESS system. The effectiveness of the proposed testing method was demonstrated by comparing the test results with those of the integrated finite element analysis. The energy responses of the ES subsystem in the case of rigid ground (i.e., the ES system) were compared with those considering the effects of soil (i.e., the ESS system). The input energy responses of the ES subsystem were found to decrease significantly after taking the effects of soil into account. Differences due to the soil effects should be considered in the seismic design for the ES system.

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Section: Equation Of Motion For An Ess Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of the Effects of Soil on the Seismic Energy Responses of an Equipment‐Structure System via Substructure Shaking Table Testing

Luo

Jiang

2019

Shock and Vibration

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“…Experimental substructures are loaded using the shaking table, while the numerical substructures are simulated using computing software. Data exchange between the experimental substructures and the numerical substructures can reduce the required scope of test procedures without affecting test accuracy (Günay et al, 2015; Mosalam et al, 2016). The real-time dynamic substructuring shaking table (RTDSST) test method was applied to investigate aseismic performance of the structure equipped with control devices (Lee et al, 2007; Lin and Christenson, 2011; Mercan and Ricles, 2009).…”

Section: Introductionmentioning

confidence: 99%

Seismic energy response analysis of equipment-structure system via real-time dynamic substructuring shaking table testing

Luo

Jiang

2019

Advances in Structural Engineering

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Dynamic equations are presented that have been deduced for a real-time dynamic substructuring shaking table test of an equipment-structure system, based on the branch mode substructure method. The equipment is adopted as the experimental substructure, which is loaded by the shaking table, while the structure is adopted as the numerical substructure. Real-time data communication occurs between the two substructures during the test. A real-time seismic energy calculation method was proposed for the calculation of energy responses, both in the experimental substructure and the numerical substructure. Taking a representative four-story steel frame/equipment model, real-time dynamic substructuring shaking table tests and overall model tests were executed. The proposed real-time dynamic substructuring shaking table testing method was verified by comparing the test results with shaking table test results for the overall model. The energy responses of each component in the equipment-structure system, using different connection types, also were studied. Changes in the connection types can lead to changes in the energy responses of the equipment-structure system, especially with respect to the equipment. The choice of the connection for the equipment-structure coupled system should take into account the operational performance objective of the equipment.

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“…Cheng et al (2014) conducted shaking table tests to obtain the seismic coupling effect between the 1,000-kV lightning arrester and the transformer connected through rigid tubular bus, and reported that the damping effect of sliding hardware weakened the acceleration response of high-frequency equipment in this system. Günay et al (2015) presented real-time hybrid simulation (RTHS) in shake table tests for testing a sub-structure in a substation. Alessandri et al (2015) described the design and characterization of a base isolation system, which protected the ceramic circuit breakers during seismic events.…”

Section: Introductionmentioning

confidence: 99%

Structural behavior of supported tubular bus structure in substations under seismic loading

Sun

Yuan

Huang

et al. 2018

Engineering Structures

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This paper presents an experimental investigation on structural behavior of a temperature member used to interconnect the supported tubular bus structure of 220 kV substation, and the dynamic interaction between the components of a bus insulator substructure under seismic loading. Finite element (FE) analysis was performed to analyze the seismic stress of the supported tubular bus structure. The results of quasi-static experiments showed an elastic deformation characteristic, while the temperature member exhibited a damping ratio of 4-7%, and elastic stiffness of 13.4 N/mm. Compared with the stand-alone configuration, the peak accelerations of insulators connected to the tubular bus through the temperature member were reduced by 10-30%, while the maximum displacements were reduced by 30%. The maximum displacement responses of insulators connected to the tubular bus through clips were roughly the same as those under the stand-alone configuration, while the peak accelerations were reduced by 30-50%. When the ground acceleration reached the value of 6.2 m/s 2 , the root stress exceeded the yield strength of the material. Under this condition the insulators may experience fracture or collapse.

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Real-time hybrid simulation in a shaking table configuration for parametric studies of high-voltage equipment and IEEE693 development

Cited by 7 publications

References 3 publications

Analysis of the Effects of Soil on the Seismic Energy Responses of an Equipment‐Structure System via Substructure Shaking Table Testing

Analysis of the Effects of Soil on the Seismic Energy Responses of an Equipment‐Structure System via Substructure Shaking Table Testing

Seismic energy response analysis of equipment-structure system via real-time dynamic substructuring shaking table testing

Structural behavior of supported tubular bus structure in substations under seismic loading

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