| Stochastic Response Analysis of Piled Offshore Platform Excited by Stationary Filtered White Noise |
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| 作者单位： | Luo Chuanxin Wu Zhiping
Professor，Institute of Offshore Engineering，Tianjin University，Tianjin 300072 Fngineer，Institute of Offshore Engineering，Tianjin University，Tianjin 300072 |
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| 摘 要： | In this paper,the analysis method of stochastic response of piled offshore platform excited bystationary filtered white noise is presented.With this method,the strong ground motion is considered asthree direction stationary filtered white noise process,the theoretic solutions of three special integrationequations are derived with the residue theorem,and the expression of response nodal displacements andmember forces of offshore platform excited by the stationary filtered white noise is put forward.Thestochastic response of a piled offshore platform excited by the stationary filtered white noise,which is lo-cated 114.3m in water depth,is computed.The results are compared with those obtained with the re-sponse spectrum analysis method and the stationary white noise model analysis method,and the corre-sponding conclusion is drawn.
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Stochastic Response Analysis of Piled Offshore Platform Excited by Stationary Filtered White Noise |
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| Authors: | Luo Chuanxin Wu Zhiping Professor |
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| Institution: | Luo Chuanxin Wu Zhiping
Professor,Institute of Offshore Engineering,Tianjin University,Tianjin 300072 Fngineer,Institute of Offshore Engineering,Tianjin University,Tianjin 300072 |
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| Abstract: | In this paper, the analysis method of stochastic response of piled offshore platform excited by stationary filtered white noise is presented. With this method, the strong ground motion is considered as three direction stationary filtered white noise process, the theoretic solutions of three special integration equations are derived with the residue theorem, and the expression of response nodal displacements and member forces of offshore platform excited by the stationary filtered white noise is put forward. The stochastic response of a piled offshore platform excited by the stationary filtered white noise, which is located 114.3 m in water depth, is computed. The results are compared with those obtained with the response spectrum analysis method and the stationary white noise model analysis method, and the corresponding conclusion is drawn. |
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| Keywords: | stochastic response piled offshore platfom stationary filtered white noise stochastic model response spectrum |
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