冲击载荷作用下舰艇管路系统全局参数灵敏度分析
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摘要
为了分析影响舰艇管路系统冲击位移动响应的主要因素,进而为保证管路系统冲击载荷作用下的安全性提供措施建议,采用Sobol’法对冲击载荷作用下一个二维的管路系统材料的弹性模量、密度,管壁厚、内径,以及支承刚度及位置,冲击作用间隔时间等参数进行了全局灵敏度分析,得出了单个或多个参数联合对管路系统冲击位移动响应的影响,并甄别出影响管路系统冲击动响应的关键参数。
In order to analyze main factors influencing displacement response of a shipboard piping system and to provide advices on improving its safety under shock loads, a two-dimension piping system model under shock loads is set up and the Sobol' method is used to analyze global sensitivities of the following parameters: elastic modulus, density, thickness, and inner radius of the pipe material, stiffnesses and locations of supports, and the exerting intervals of shock loads. Influences of a single parameter and combinations of several parameters on the displacement response of the piping system are obtained and the key parameters with strong influences are obtained.
In order to analyze main factors influencing displacement response of a shipboard piping system and to provide advices on improving its safety under shock loads, a two-dimension piping system model under shock loads is set up and the Sobol' method is used to analyze global sensitivities of the following parameters: elastic modulus, density, thickness, and inner radius of the pipe material, stiffnesses and locations of supports, and the exerting intervals of shock loads. Influences of a single parameter and combinations of several parameters on the displacement response of the piping system are obtained and the key parameters with strong influences are obtained.
引文
[1]顾文彬.舰船管路系统在振动环境下弹性支承的位置优化研究[D]:[硕士学位论文].上海:同济大学,2000.
[2]刘晶波,杜修力.结构动力学[M].北京:机械工业出版社,2005.
[3]Anil K.Chopra.结构动力学:理论及其在地震工程中的应用[M].北京:清华大学出版社,2005.
[4]毛为民,朱石坚,张振中.基于柔性基础的双层隔振系统概率灵敏度分析[J].海军工程大学学报,2005,17(3):52—56.
[5]Mao Weimin,Zhu Shijian,Jiang Huiming.Study on Optimiza-tion Design of Hybrid Vibration Isolation System on flexible foundation。Proceedings of the ASME International Design En-gineering Technical Conferences and Computers and Informa-tion in Engineering Conferences-DETC2005:20th Biennial Conf.on Mech.Vibration and Noise.Long Beach,CA,United States,2005,2251—2257.
[6]李睿,Sobol I M.灵敏度分析方法在结构动态特性分析中的应用研究[D]:[硕士学位论文].长沙:湖南大学,2003.
[7]Sobol’I M.Theorems and examples on high dimensional model representation[J].Reliability Engineering and System Safety,2003,79:187—193.
[8]Saltelli A,Tarantola S,Campolongo F.Sensitivity Analysis as an Ingredient of Modeling[J].Statistical Science,2000,15(4):377—395.
[9]汪玉,华宏星.舰船现代冲击理论及应用[M].北京:科学出版社,2005.
[2]刘晶波,杜修力.结构动力学[M].北京:机械工业出版社,2005.
[3]Anil K.Chopra.结构动力学:理论及其在地震工程中的应用[M].北京:清华大学出版社,2005.
[4]毛为民,朱石坚,张振中.基于柔性基础的双层隔振系统概率灵敏度分析[J].海军工程大学学报,2005,17(3):52—56.
[5]Mao Weimin,Zhu Shijian,Jiang Huiming.Study on Optimiza-tion Design of Hybrid Vibration Isolation System on flexible foundation。Proceedings of the ASME International Design En-gineering Technical Conferences and Computers and Informa-tion in Engineering Conferences-DETC2005:20th Biennial Conf.on Mech.Vibration and Noise.Long Beach,CA,United States,2005,2251—2257.
[6]李睿,Sobol I M.灵敏度分析方法在结构动态特性分析中的应用研究[D]:[硕士学位论文].长沙:湖南大学,2003.
[7]Sobol’I M.Theorems and examples on high dimensional model representation[J].Reliability Engineering and System Safety,2003,79:187—193.
[8]Saltelli A,Tarantola S,Campolongo F.Sensitivity Analysis as an Ingredient of Modeling[J].Statistical Science,2000,15(4):377—395.
[9]汪玉,华宏星.舰船现代冲击理论及应用[M].北京:科学出版社,2005.
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