铺管船张紧器主框架结构优化设计

Structure optimal design for the main frame of pipe-laying ship tensioner

以铺管船张紧器为研究对象,对张紧器的工作原理进行了分析,建立了张紧器主框架结构优化分析的模型。使用有限元软件ANSYS结构优化模块对某铺管船张紧器主框架进行了结构优化,张紧器主框架钢材用量从原设计的1.483 m^3下降到了0.489 m^3,节省67%,极大地减轻了张紧器的质量;同时,优化后的安全系数仍达3.29,能够满足海上铺管作业的要求。本研究中所使用的优化思路和优化方法可以作为海上工程设备设计的基础,对平衡海上施工的经济性与安全性具有指导意义。

The principle of pipe-laying ship tensioner was analyzed and the structure optimal model of its main frame was established.The main frame was optimized by structure optimization module of ANSYS finite element analysis software.When the optimization was done,the steel consumption of the main frame was reduced from 1.483 m^3 to 0.489 m^3,reducing 67% ; while the safety coefficient was 3.29,and it still met the requests of pipe-laying.The optimal idea and method adopted in this paper could be used in the design of offshore engineering devices and have the guiding significance for the balance between economy and safety for offshore construction.