Comparative Study on Non-Gaussian Characteristics of Wind Pressure for Rigid and Flexible Structures
This paper summarizes a comprehensive study for non-Gaussian properties of wind pressure. The field measurements are implemented on the structure surface of a rigid structure, while a large-span membrane structure is selected as the flexible structure wind pressure contrast group. The non-Gaussian c...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/9213503 |
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| author | Lei Jiang Jin-hua Li Chun-xiang Li |
| author_facet | Lei Jiang Jin-hua Li Chun-xiang Li |
| author_sort | Lei Jiang |
| collection | DOAJ |
| description | This paper summarizes a comprehensive study for non-Gaussian properties of wind pressure. The field measurements are implemented on the structure surface of a rigid structure, while a large-span membrane structure is selected as the flexible structure wind pressure contrast group. The non-Gaussian characteristics of measured pressure data were analyzed and discussed through probability density distribution, characteristic statistical parameters, power spectral density function, and the correlations, respectively. In general, the non-Gaussian characteristics of wind pressure present depending on tap location, wind direction, and structure geometry. In this study, the fluctuating wind pressures on the windward side and leeward side of the structures show obvious different degrees of non-Gaussian properties; that is, the surface of rigid structure shows strong non-Gaussian property in leeward, while the roof of flexible structure shows obvious non-Gaussian property in windward. Finally, this paper utilizes the present autospectrum empirical formula to fit the wind pressure power spectrum density of the measured data and obtains the conclusion that the existing empirical formula is not ideal for fitting of the flexible structure. |
| format | Article |
| id | doaj-art-f50a39f3637a44bb9aa0d47f2d2d678c |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-f50a39f3637a44bb9aa0d47f2d2d678c2025-08-20T03:25:22ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/92135039213503Comparative Study on Non-Gaussian Characteristics of Wind Pressure for Rigid and Flexible StructuresLei Jiang0Jin-hua Li1Chun-xiang Li2Department of Civil Engineering, Shanghai University, Shanghai 200444, ChinaDepartment of Civil Engineering, East China Jiaotong University, Nanchang 330013, ChinaDepartment of Civil Engineering, Shanghai University, Shanghai 200444, ChinaThis paper summarizes a comprehensive study for non-Gaussian properties of wind pressure. The field measurements are implemented on the structure surface of a rigid structure, while a large-span membrane structure is selected as the flexible structure wind pressure contrast group. The non-Gaussian characteristics of measured pressure data were analyzed and discussed through probability density distribution, characteristic statistical parameters, power spectral density function, and the correlations, respectively. In general, the non-Gaussian characteristics of wind pressure present depending on tap location, wind direction, and structure geometry. In this study, the fluctuating wind pressures on the windward side and leeward side of the structures show obvious different degrees of non-Gaussian properties; that is, the surface of rigid structure shows strong non-Gaussian property in leeward, while the roof of flexible structure shows obvious non-Gaussian property in windward. Finally, this paper utilizes the present autospectrum empirical formula to fit the wind pressure power spectrum density of the measured data and obtains the conclusion that the existing empirical formula is not ideal for fitting of the flexible structure.http://dx.doi.org/10.1155/2018/9213503 |
| spellingShingle | Lei Jiang Jin-hua Li Chun-xiang Li Comparative Study on Non-Gaussian Characteristics of Wind Pressure for Rigid and Flexible Structures Shock and Vibration |
| title | Comparative Study on Non-Gaussian Characteristics of Wind Pressure for Rigid and Flexible Structures |
| title_full | Comparative Study on Non-Gaussian Characteristics of Wind Pressure for Rigid and Flexible Structures |
| title_fullStr | Comparative Study on Non-Gaussian Characteristics of Wind Pressure for Rigid and Flexible Structures |
| title_full_unstemmed | Comparative Study on Non-Gaussian Characteristics of Wind Pressure for Rigid and Flexible Structures |
| title_short | Comparative Study on Non-Gaussian Characteristics of Wind Pressure for Rigid and Flexible Structures |
| title_sort | comparative study on non gaussian characteristics of wind pressure for rigid and flexible structures |
| url | http://dx.doi.org/10.1155/2018/9213503 |
| work_keys_str_mv | AT leijiang comparativestudyonnongaussiancharacteristicsofwindpressureforrigidandflexiblestructures AT jinhuali comparativestudyonnongaussiancharacteristicsofwindpressureforrigidandflexiblestructures AT chunxiangli comparativestudyonnongaussiancharacteristicsofwindpressureforrigidandflexiblestructures |