Aerodynamic parameters of across-wind self-limiting vibration for square sections after lock-in in smooth flow
The paper aims to identify the across-wind aerodynamic parameters of two-dimensional square section structures after the lock-in stage from the response measurements of wind tunnel tests under smooth wind flow conditions. Firstly, a conceivable self-limiting model was selected from the existent lite...
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London: Elsevier Ltd
2011
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Online Access: | http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/89033 http://tkuir.lib.tku.edu.tw:8080/dspace/bitstream/987654321/89033/4/index.html http://tkuir.lib.tku.edu.tw:8080/dspace/bitstream/987654321/89033/-1/Aerodynamic parameters of across-wind self-limiting vibration for square sections after lock-in in smooth flow.pdf |
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Tamkang University Institutional Repository (TKUIR) / 淡江大學機構典藏 |
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English |
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The paper aims to identify the across-wind aerodynamic parameters of two-dimensional square section structures after the lock-in stage from the response measurements of wind tunnel tests under smooth wind flow conditions. Firstly, a conceivable self-limiting model was selected from the existent literature and the revisit of the analytical solution shows that the aerodynamic parameters (linear and nonlinear aerodynamic dampings Y1 and ε, and aerodynamic stiffness Y2) are not only functions of the section shape and reduced wind velocity but also dependent on both the mass ratio (mr) and structural damping ratio (ξ) independently, rather than on the Scruton number as a whole. Secondly, the growth-to-resonance (GTR) method was adopted for identifying the aerodynamic parameters of four different square section models (DN1, DN2, DN3 and DN4) by varying the density ranging from 226 to 409 kg/m3. To improve the accuracy of the results, numerical optimization of the curve-fitting for experimental and analytical response in time domain was performed to finalize the results. The experimental results of the across-wind self-limiting steady-state amplitudes after lock-in stage versus the reduced wind velocity show that, except the tail part of the DN1 case slightly decreases indicating a pure vortex-induced lock-in persists, the DN2, DN3 and DN4 cases have a trend of monotonically increasing with the reduced wind velocity, which shows an asymptotic combination with the galloping behavior. Due to such a combination effect, all three aerodynamic parameters decrease as the reduced wind velocity increases and asymptotically approaches to a constant at the high branch. In the DN1 case, the parameters Y1 and Y2 decrease as the reduced wind velocity increases while the parameter ε slightly reverses in the tail part. The 3-dimensional surface plot of the Y1, ε and Y2 curves further show that, excluding the DN1 case, the parameters in the DN2, DN3 and DN4 cases almost follow a symmetric concave-up distribution versus the density under the same reduced wind velocity. This indicates that the aerodynamic parameters in the DN3 case are the minima along the density distribution. 補正完畢 國外 SCI Y 紙本 GBR |
author2 |
淡江大學土木工程學系 |
author |
Wu, Jong-Cheng; Chang, Feng-Jung Wu, Jong-Cheng |
spellingShingle |
Wu, Jong-Cheng; Chang, Feng-Jung Wu, Jong-Cheng Aerodynamic parameters of across-wind self-limiting vibration for square sections after lock-in in smooth flow |
author_facet |
Wu, Jong-Cheng; Chang, Feng-Jung Wu, Jong-Cheng |
author_sort |
Wu, Jong-Cheng; Chang, Feng-Jung |
title |
Aerodynamic parameters of across-wind self-limiting vibration for square sections after lock-in in smooth flow |
title_short |
Aerodynamic parameters of across-wind self-limiting vibration for square sections after lock-in in smooth flow |
title_full |
Aerodynamic parameters of across-wind self-limiting vibration for square sections after lock-in in smooth flow |
title_fullStr |
Aerodynamic parameters of across-wind self-limiting vibration for square sections after lock-in in smooth flow |
title_full_unstemmed |
Aerodynamic parameters of across-wind self-limiting vibration for square sections after lock-in in smooth flow |
title_sort |
aerodynamic parameters of across-wind self-limiting vibration for square sections after lock-in in smooth flow |
publisher |
London: Elsevier Ltd |
publishDate |
2011 |
url |
http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/89033 http://tkuir.lib.tku.edu.tw:8080/dspace/bitstream/987654321/89033/4/index.html http://tkuir.lib.tku.edu.tw:8080/dspace/bitstream/987654321/89033/-1/Aerodynamic parameters of across-wind self-limiting vibration for square sections after lock-in in smooth flow.pdf |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Journal of Sound and Vibration 330(17), pp.4328–4339 [1] E. Simiu, R.H. Scanlan Wind Effects on Structures John Wiley, NY (1996) [2] R.D. Blevins Flow-Induced Vibration Robert E. Krieger Publishing Company, Florida (1977) [3] E. Naudascher, D. Rockwell Flow-Induced Vibration: An Engineering Guide Balkema, Rotterdam (1994) [4] G.V. Parkinson, M.A. Wawzonek Some considerations of combined effect of galloping and vortex resonance Journal of Wind Engineering and Industrial Aerodynamics, 8 (1981), pp. 135–143 Article %7C PDF (419 K) %7C View Record in Scopus %7C Citing articles (30) [5] G.V. Parkinson, J.D. Smith The square prism as an aeroelastic nonlinear oscillator Quarterly Journal of Mechanics and Applied Mathematics, 17 (1964), pp. 225–239 View Record in Scopus %7C Citing articles (189) [6] R.M. Corless, G.V. Parkison A model of combined effects of vortex-induced oscillation and galloping Journal of Fluids and Structures, 2 (1988), pp. 203–220 Article %7C PDF (1134 K) %7C View Record in Scopus %7C Citing articles (37) [7] K.C.S. Kwok, W.H. Melbourne Wind-induced lock-in excitation of tall structures ASCE Journal of Structural Division, 107 (ST1) (1981), pp. 57–72 View Record in Scopus %7C Citing articles (54) [8] H. Hayashida, Y. Mataki, Y. Iwasa Aerodynamic damping effects of tall building for a vortex induced vibration Journal of Wind Engineering and Industrial Aerodynamics, 41–44 (1992), pp. 1973–1983 Article %7C PDF (991 K) %7C View Record in Scopus %7C Citing articles (12) [9] C.M. Cheng, P.C. Lu, M.S. Tsai Acrosswind aerodynamic damping of isolated square shaped buildings Journal of Wind Engineering and Industrial Aerodynamics, 90 (12–15) (2002), pp. 1743–1756 Article %7C PDF (779 K) %7C View Record in Scopus %7C Citing articles (27) [10] B.J. Vickery, A. Steckley Aerodynamic damping and vortex excitation on an oscillating prism in turbulent shear flow Journal of Wind Engineering and Industrial Aerodynamics, 49 (1993), pp. 121–140 Article %7C PDF (792 K) %7C View Record in Scopus %7C Citing articles (31) [11] A. Khalak, C.H.K. Williamson Investigation of relative effects of mass and damping in vortex-induced vibration of a circular cylinder Journal of Wind Engineering and Industrial Aerodynamics, 69–71 (1997), pp. 341–350 Article %7C PDF (412 K) %7C View Record in Scopus %7C Citing articles (78) [12] A. Khalak, C.H.K. Williamson Motions, forces and mode transitions in vortex-induced vibrations at low mass-damping Journal of Fluids and Structures, 13 (1999), pp. 813–851 Article %7C PDF (568 K) %7C View Record in Scopus %7C Citing articles (474) [13] C.H.K. Williamson, R. Govardhan Vortex-induced vibrations Annual Review on Fluid Mechanics, 36 (2004), pp. 413–455 CrossRef %7C View Record in Scopus %7C Citing articles (868) [14] M.H. Bahmani, M.H. Akbari Effects of mass and damping ratios on VIV of a circular cylinder Ocean Engineering, 37 (2010), pp. 511–519 Article %7C PDF (573 K) %7C View Record in Scopus %7C Citing articles (20) [15] X. Amandolese, P. Hemon Vortex-induced vibration of a square cylinder in wind tunnel Comptes Rendus Mecanique, 338 (2010), pp. 12–17 Article %7C PDF (288 K) %7C View Record in Scopus %7C Citing articles (22) [16] P.W. Bearman, I.G. Currie Pressure-fluctuation measurements on an oscillating circular cylinder Journal of Fluid Mechanics, 91 (1979), pp. 661–677 CrossRef %7C View Record in Scopus %7C Citing articles (62) [17] P.W. Bearman, E.D. Obasaju An experimental study of pressure fluctuations on fixed and oscillating square-section cylinders Journal of Fluid Mechanics, 119 (1982), pp. 297–321 CrossRef %7C View Record in Scopus %7C Citing articles (193) [18] F. Ehsan, R.H. Scanlan Vortex-induced vibrations of flexible bridges ASCE Journal of Engineering Mechanics, 116 (15) (1989), pp. 1392–1411 [19] A. Larsen A generalized model for assessment of vortex-induced vibrations of flexible structures Journal of Wind Engineering and Industrial Aerodynamics, 57 (1995), pp. 281–294 Article %7C PDF (636 K) %7C View Record in Scopus %7C Citing articles (34) [20] T. Sarpkaya Hydrodynamic damping, flow-induced oscillation, and biharmonic response ASME Journal of Offshore Mechanics and Arctic Engineering, 117 (1995), pp. 232–238 未完 0022-460X 10.1016/j.jsv.2011.04.026 http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/89033 http://tkuir.lib.tku.edu.tw:8080/dspace/bitstream/987654321/89033/4/index.html http://tkuir.lib.tku.edu.tw:8080/dspace/bitstream/987654321/89033/-1/Aerodynamic parameters of across-wind self-limiting vibration for square sections after lock-in in smooth flow.pdf |
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fttamkanguniv:oai:tkuir.lib.tku.edu.tw:987654321/89033 2023-05-15T14:28:22+02:00 Aerodynamic parameters of across-wind self-limiting vibration for square sections after lock-in in smooth flow Wu, Jong-Cheng; Chang, Feng-Jung Wu, Jong-Cheng 淡江大學土木工程學系 2011-08 127 bytes text/html http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/89033 http://tkuir.lib.tku.edu.tw:8080/dspace/bitstream/987654321/89033/4/index.html http://tkuir.lib.tku.edu.tw:8080/dspace/bitstream/987654321/89033/-1/Aerodynamic parameters of across-wind self-limiting vibration for square sections after lock-in in smooth flow.pdf en en_US eng London: Elsevier Ltd Journal of Sound and Vibration 330(17), pp.4328–4339 [1] E. Simiu, R.H. Scanlan Wind Effects on Structures John Wiley, NY (1996) [2] R.D. Blevins Flow-Induced Vibration Robert E. Krieger Publishing Company, Florida (1977) [3] E. Naudascher, D. Rockwell Flow-Induced Vibration: An Engineering Guide Balkema, Rotterdam (1994) [4] G.V. Parkinson, M.A. Wawzonek Some considerations of combined effect of galloping and vortex resonance Journal of Wind Engineering and Industrial Aerodynamics, 8 (1981), pp. 135–143 Article %7C PDF (419 K) %7C View Record in Scopus %7C Citing articles (30) [5] G.V. Parkinson, J.D. Smith The square prism as an aeroelastic nonlinear oscillator Quarterly Journal of Mechanics and Applied Mathematics, 17 (1964), pp. 225–239 View Record in Scopus %7C Citing articles (189) [6] R.M. Corless, G.V. Parkison A model of combined effects of vortex-induced oscillation and galloping Journal of Fluids and Structures, 2 (1988), pp. 203–220 Article %7C PDF (1134 K) %7C View Record in Scopus %7C Citing articles (37) [7] K.C.S. Kwok, W.H. Melbourne Wind-induced lock-in excitation of tall structures ASCE Journal of Structural Division, 107 (ST1) (1981), pp. 57–72 View Record in Scopus %7C Citing articles (54) [8] H. Hayashida, Y. Mataki, Y. Iwasa Aerodynamic damping effects of tall building for a vortex induced vibration Journal of Wind Engineering and Industrial Aerodynamics, 41–44 (1992), pp. 1973–1983 Article %7C PDF (991 K) %7C View Record in Scopus %7C Citing articles (12) [9] C.M. Cheng, P.C. Lu, M.S. Tsai Acrosswind aerodynamic damping of isolated square shaped buildings Journal of Wind Engineering and Industrial Aerodynamics, 90 (12–15) (2002), pp. 1743–1756 Article %7C PDF (779 K) %7C View Record in Scopus %7C Citing articles (27) [10] B.J. Vickery, A. Steckley Aerodynamic damping and vortex excitation on an oscillating prism in turbulent shear flow Journal of Wind Engineering and Industrial Aerodynamics, 49 (1993), pp. 121–140 Article %7C PDF (792 K) %7C View Record in Scopus %7C Citing articles (31) [11] A. Khalak, C.H.K. Williamson Investigation of relative effects of mass and damping in vortex-induced vibration of a circular cylinder Journal of Wind Engineering and Industrial Aerodynamics, 69–71 (1997), pp. 341–350 Article %7C PDF (412 K) %7C View Record in Scopus %7C Citing articles (78) [12] A. Khalak, C.H.K. Williamson Motions, forces and mode transitions in vortex-induced vibrations at low mass-damping Journal of Fluids and Structures, 13 (1999), pp. 813–851 Article %7C PDF (568 K) %7C View Record in Scopus %7C Citing articles (474) [13] C.H.K. Williamson, R. Govardhan Vortex-induced vibrations Annual Review on Fluid Mechanics, 36 (2004), pp. 413–455 CrossRef %7C View Record in Scopus %7C Citing articles (868) [14] M.H. Bahmani, M.H. Akbari Effects of mass and damping ratios on VIV of a circular cylinder Ocean Engineering, 37 (2010), pp. 511–519 Article %7C PDF (573 K) %7C View Record in Scopus %7C Citing articles (20) [15] X. Amandolese, P. Hemon Vortex-induced vibration of a square cylinder in wind tunnel Comptes Rendus Mecanique, 338 (2010), pp. 12–17 Article %7C PDF (288 K) %7C View Record in Scopus %7C Citing articles (22) [16] P.W. Bearman, I.G. Currie Pressure-fluctuation measurements on an oscillating circular cylinder Journal of Fluid Mechanics, 91 (1979), pp. 661–677 CrossRef %7C View Record in Scopus %7C Citing articles (62) [17] P.W. Bearman, E.D. Obasaju An experimental study of pressure fluctuations on fixed and oscillating square-section cylinders Journal of Fluid Mechanics, 119 (1982), pp. 297–321 CrossRef %7C View Record in Scopus %7C Citing articles (193) [18] F. Ehsan, R.H. Scanlan Vortex-induced vibrations of flexible bridges ASCE Journal of Engineering Mechanics, 116 (15) (1989), pp. 1392–1411 [19] A. Larsen A generalized model for assessment of vortex-induced vibrations of flexible structures Journal of Wind Engineering and Industrial Aerodynamics, 57 (1995), pp. 281–294 Article %7C PDF (636 K) %7C View Record in Scopus %7C Citing articles (34) [20] T. Sarpkaya Hydrodynamic damping, flow-induced oscillation, and biharmonic response ASME Journal of Offshore Mechanics and Arctic Engineering, 117 (1995), pp. 232–238 未完 0022-460X 10.1016/j.jsv.2011.04.026 http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/89033 http://tkuir.lib.tku.edu.tw:8080/dspace/bitstream/987654321/89033/4/index.html http://tkuir.lib.tku.edu.tw:8080/dspace/bitstream/987654321/89033/-1/Aerodynamic parameters of across-wind self-limiting vibration for square sections after lock-in in smooth flow.pdf 2011 fttamkanguniv 2022-01-28T01:24:11Z The paper aims to identify the across-wind aerodynamic parameters of two-dimensional square section structures after the lock-in stage from the response measurements of wind tunnel tests under smooth wind flow conditions. Firstly, a conceivable self-limiting model was selected from the existent literature and the revisit of the analytical solution shows that the aerodynamic parameters (linear and nonlinear aerodynamic dampings Y1 and ε, and aerodynamic stiffness Y2) are not only functions of the section shape and reduced wind velocity but also dependent on both the mass ratio (mr) and structural damping ratio (ξ) independently, rather than on the Scruton number as a whole. Secondly, the growth-to-resonance (GTR) method was adopted for identifying the aerodynamic parameters of four different square section models (DN1, DN2, DN3 and DN4) by varying the density ranging from 226 to 409 kg/m3. To improve the accuracy of the results, numerical optimization of the curve-fitting for experimental and analytical response in time domain was performed to finalize the results. The experimental results of the across-wind self-limiting steady-state amplitudes after lock-in stage versus the reduced wind velocity show that, except the tail part of the DN1 case slightly decreases indicating a pure vortex-induced lock-in persists, the DN2, DN3 and DN4 cases have a trend of monotonically increasing with the reduced wind velocity, which shows an asymptotic combination with the galloping behavior. Due to such a combination effect, all three aerodynamic parameters decrease as the reduced wind velocity increases and asymptotically approaches to a constant at the high branch. In the DN1 case, the parameters Y1 and Y2 decrease as the reduced wind velocity increases while the parameter ε slightly reverses in the tail part. The 3-dimensional surface plot of the Y1, ε and Y2 curves further show that, excluding the DN1 case, the parameters in the DN2, DN3 and DN4 cases almost follow a symmetric concave-up distribution versus the density under the same reduced wind velocity. This indicates that the aerodynamic parameters in the DN3 case are the minima along the density distribution. 補正完畢 國外 SCI Y 紙本 GBR Other/Unknown Material Arctic Tamkang University Institutional Repository (TKUIR) / 淡江大學機構典藏 |