| 摘要:为充分反映出船舶管路的整体应力分布和周向应力应变的变化情况，采用壳单元建立管路有限元模型，并考虑法兰、阀门、仪表等管路附件以及吊支架对管路抗冲击性能的影响；根据BV规范对冲击能量进行转换，得出两种不同的时域曲线作为冲击载荷，对比分析了不同冲击载荷对计算结果的影响；最后对成套管路的冲击响应结果进行分析，综合评估了其整体抗冲击性能，指出成套管路的抗冲击薄弱环节。 |
| 关键词: 船舶 成套管路 冲击 载荷 |
|
| Shock Resistance Performance Evaluation of Ship Piping Systemand its Accessory Equipments |
| Li Qingsong,Ma Bingjie,Yao Hui,Wang Zhigang |
| Naval Deputy Office of Guangzhou Shipyard International Co., Ltd.,Guangdong Guangzhou 510382;Shanghai Marine Diesel Engine Research Institute, Shanghai 201108 |
| Abstract:To adequately reflect the overall stress distribution and the change of circumferential stress and strain of pipelines, FEM model was established using shell element, and the effect of accessories such as flange, valve and instrument as well as hanger on the shock resistance performance were taken into consideration. According to BV standard, the impact energy were transformed, and two different time domain curves were obtained as impact loads, and their effect on the calculation results were compared and analyzed respectively. Finally, the impact response results of pipelines were studied, the overall impact resistance performance were evaluated comprehensively, and then weaknesses of piping system were give. |
| Key words: ship piping system impact load |
