【作者】 熊凯；

【导师】 刘玉君； 汪骥；

【作者基本信息】 大连理工大学 ， 船舶与海洋结构物设计制造， 2009， 硕士

【摘要】 轴系校中质量的好坏,对保障船舶及轴系长期、稳定、正运转及船舶航行的安全非常重要。影响轴系校中质量的因素很多,大体上分为动态因素和非动态因素。对于非动态因素,工作人员可以从操作、设计等角度来寻求对策;而动态因素,则是当前轴系校中研究的一个重要课题。本文研究轴系校中技术,做了如下几方面的工作:了解轴系组成,分析其所承受的负荷,并对轴系校中的重要性及复杂性进行了初步探索。对轴系校中计算的常用方法进行研究比较,发现在ANSYS软件支撑下的有限元法在速度、准确度方面都有比较大的优势。在全面分析影响轴系校中质量诸因素的基础上,选取船体变形这一动态因素为研究对象。然后通过仔细分析船体变形,从轴系校中的定义出发,引出变形耦合理论来实现轴系校中在船舶不同装载情况之间的平衡,并详细阐述了变形耦合的一条可行途径。最后,从轴系合理校中比较常用的三弯矩法、迁移矩阵法和有限元法中选取比较实用的有限元法,对某船型轴系进行校中计算及变形耦合计算,验证了变形耦合理论的合理性。更多还原

【Abstract】 The quality of shafting alignment is important to the long, stable, normal operation of the ship and shafting system. There are lots of factors that affect the quality of shafting alignment. These factors could be divided into two classes, dynamic and non-dynamic factors. For non-dynamic factors, more attention should be paid to the work of design and operation. The effect of dynamic factors should be studied further.The importance and complexity of shafting alignment is studied, and then hull deformation, one of the dynamic factors that affect the quality of shafting alignment, is picked to be analyzed and studied.Those methods that are usually used to calculate shafting reasonable alignment are compared with each other. Among those methods, the Finite Element Method is faster and more accurate.Hull deformations can be caused by two main factors, waves and different load conditions. To search a best balance between hull deformations that are caused by different load conditions, the theory of "deformation coupling" is proposed. Then through the shafting alignment calculation of some one ship form, the rationality of the theory is proved.更多还原