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.
出处
《振动与冲击》
EI
CSCD
北大核心
2007年第3期45-48,共4页
Journal of Vibration and Shock
