摘要
为了研究S型铺管过程中托管架-船体-管线之间的耦合作用,采用管线与托辊之间的接触机理来模拟这种耦合作用.用广义弹性面接触法模拟托管架上的托辊;铰接方式连接管线上弯段莫里森杆;PID控制理论用来模拟船的动力定位.通过计算得到了铺管作业工况下船体的运动响应和管线对船体运动贡献力.同时通过S型铺管弯曲应力经验公式验证计算结果的正确性.结果表明,低频波浪对铺管作业有较大影响,耦合作用力不容忽视.计算铺设管线的工作海况时建议考虑托管架与管线的相互作用.
In order to study the coupling among stinger-lay barge-pipeline of S-lay methods,the mechanism of contact between the pipeline and roller was used to simulate a coupling test.A method utilizing a generalized elastic surface contact algorithm was used to simulate the roller on the stinger;the Morison rod of over-bending region was connected by hinged;PID control theory was also used to simulate dynamic position of the ship.The dynamic response of the lay barge and the contribute force from the pipe can be achieved by calculation.The empirical formula of the over-bending stress of S-lay method was used to validate the results.The results show that low frequency wave dominates the response of the lay barge,and the coupling force should not be ignored.The coupling between the stinger and the pipe was recommended for consideration when calculating the working sea state of the lay barge.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2013年第4期415-420,433,共7页
Journal of Harbin Engineering University
基金
3000米水深大型起重铺管船自主研发资助项目(COO-EC)
深海工程科学与技术创新引智基地计划基金资助项目(B070019)
关键词
S型铺管
耦合分析
弹性面接触
动力响应
动力定位
S-lay installation
lay barge
coupling analysis
elastic surface contact
dynamic response
dynamic position
