有限元法用于船舶轴系校中计算  

Application of FEM in ship shafting alignment

作　　者：尤国英[1] 杜尚林[1] 顾忠明[1] 朱晓春[1] 

机构地区：[1]中国船舶重工集团公司第七○三研究所无锡分部,江苏无锡214151

出　　处：《舰船科学技术》2009年第8期60-62,66,共4页Ship Science and Technology

摘　　要：针对某船舶动力系统试验用轴系,运用有限元法建立了轴系校中计算的力学模型,简述了轴系校中的计算方法及计算控制条件,详细介绍了轴承负荷影响系数、3种校中状态(直线校中冷态、合理校中热态、合理校中冷态)的轴线变形及轴承负荷、现场轴系校中(安装状态)的法兰开口及偏移值等计算结果,最后通过顶举法对轴承负荷进行实测检验,结果表明计算值与实测值吻合。说明采用有限元法进行轴系校中计算是非常有效的,是今后轴系校中计算的发展方向。With respect to a testing shafting for ship power system test, a mechanics model for shafting alignment calculation is constructed by use of finite element method. Calculating method and control conditions for shafting alignment are briefed. The influence coefficient of bearing load, the shafting displacement and bearing load at three alignment states （straight alignment state, cold state of reasonable alignment,hot state of reasonable alignment）, and the gap and sag of flanges at installation state are introduced in detail. Lastly, the bearing practical load is tested by use of jack lift method. The testing result shows that the calculation tallies with the test properly. It shows that the finite element method is very effective for shafting alignment calculation. The finite element method is the development direction for shafting alignment calculation in future.

关 键 词：船舶轴系 校中计算 影响系数 有限元法 顶举法 

分 类 号：U664.21[交通运输工程—船舶及航道工程]