SEISMIC RESPONSE OF A FULL-SCALE WIND TURBINE TOWER USING EXPERIMENTAL AND NUMERICAL MODAL ANALYSIS

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SAYED AHMAD KANDIL KAMEL; SAUDI GHADA N.; ABOUL ANEN ELTALY BOSHRA

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Journal: INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING Year:2016 | Volume:8 | Issue:4 Page(s): 0-0

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Title

SEISMIC RESPONSE OF A FULL-SCALE WIND TURBINE TOWER USING EXPERIMENTAL AND NUMERICAL MODAL ANALYSIS

Author(s)

SAYED AHMAD KANDIL KAMEL | SAUDI GHADA N. | ABOUL ANEN ELTALY BOSHRA | Issue Writer Certificate

Keywords

WIND TURBINE TOWER

AMBIENT VIBRATION TEST

ZAFARANA WIND FARM

TIME HISTORY ANALYSIS

SEISMIC RESPONSE

Abstract

Wind turbine technology has developed tremendously over the past years. In Egypt, the ZAFARANA WIND FARM is currently generating at a capacity of 517 MW, making it one of the largest onshore wind farms in the world. It is located in an active seismic zone along the west side of the Gulf of Suez. Accordingly, seismic risk assessment is demanded for studying the structural integrity of wind towers under expected seismic hazard events. In the context of ongoing joint Egypt–US research project ‘‘Seismic Risk Assessment of WIND TURBINE TOWERs in ZAFARANA WIND FARM Egypt’’ (Project ID: 4588), this paper describes the dynamic performance investigation of an existing Nordex N43 WIND TURBINE TOWER. Both experimental and numerical work are illustrated explaining the methodology adopted to investigate the dynamic behavior of the tower under seismic load. Field dynamic testing of the full-scale tower was performed using ambient vibration techniques (AVT). Both frequency domain and time domain methods were utilized to identify the actual dynamic properties of the tower as built in the site. Mainly, the natural frequencies, their corresponding mode shapes and damping ratios of the tower were successfully identified using AVT. A vibration-based finite element model (FEM) was constructed using ANSYS V.12 software. The numerical and experimental results of modal analysis were both compared for matching purpose. Using different simulation considerations, the initial FEM was updated to finally match the experimental results with good agreement. Using the final updated FEM, the response of the tower under the AQABA earthquake excitation was investigated. TIME HISTORY ANALYSIS was conducted to define the SEISMIC RESPONSE of the tower in terms of the structural stresses and displacements. This work is considered as one of the pioneer structural studies of the WIND TURBINE TOWERs in Egypt. Identification of the actual dynamic properties of the existing tower was successfully performed based on AVT. Using advanced techniques in both the field testing and the numerical investigations produced reliable FEM specific for the tested tower, which can be further used in more advanced structural investigations for improving the design of such special structures.

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APA: Copy

SAYED AHMAD KANDIL, KAMEL, SAUDI, GHADA N., & ABOUL ANEN ELTALY, BOSHRA. (2016). SEISMIC RESPONSE OF A FULL-SCALE WIND TURBINE TOWER USING EXPERIMENTAL AND NUMERICAL MODAL ANALYSIS. INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING, 8(4), 0-0. SID. https://sid.ir/paper/319835/en

Vancouver: Copy

SAYED AHMAD KANDIL KAMEL, SAUDI GHADA N., ABOUL ANEN ELTALY BOSHRA. SEISMIC RESPONSE OF A FULL-SCALE WIND TURBINE TOWER USING EXPERIMENTAL AND NUMERICAL MODAL ANALYSIS. INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING[Internet]. 2016;8(4):0-0. Available from: https://sid.ir/paper/319835/en

IEEE: Copy

KAMEL SAYED AHMAD KANDIL, GHADA N. SAUDI, and BOSHRA ABOUL ANEN ELTALY, “SEISMIC RESPONSE OF A FULL-SCALE WIND TURBINE TOWER USING EXPERIMENTAL AND NUMERICAL MODAL ANALYSIS,” INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING, vol. 8, no. 4, pp. 0–0, 2016, [Online]. Available: https://sid.ir/paper/319835/en

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