多点弹性支承下船用螺旋桨轴承的受力与变形分析  

Force and deformation of ship′s propeller bearing on multi-points elastic support

作　　者：付团伟[1] 李明[1] 

机构地区：[1]西安科技大学理学院,陕西西安710054

出　　处：《西安科技大学学报》2011年第1期112-116,共5页Journal of Xi’an University of Science and Technology

基　　金：国家自然科学基金项目(11072190);陕西省教厅专项科研基金项目(08JK365)

摘　　要：船舶轴系合理校中对保证轴系长期可靠运转极为重要,它关系到船舶的安全航行。本文运用有限元方法建立多点弹性支承船舶轴系的力学模型,并将该方法应用到船舶轴系的校中计算中。通过实例分析表明,在多点弹性支承下,螺旋桨轴承支承点的位置到螺旋桨的距离略大于单点刚性支承,且在螺旋桨轴承后端点处的支反力最大,这与实际船舶的螺旋桨轴承在此处变形最大相符。Ship shafting alignment is essential to ensuring the long-term＇s reliable operation of shaft,because it is related to the safe navigation of ship.The modeling of ship＇s propeller bearing on multi-points elastic support is developed based on finite element method（FEM） and is applied to analyze the problem of the ship shafting alignment.The practical results show that the distance between the position of resultant force of propeller bearing and propeller on multi-points elastic support is a little further than that with the single-point rigid support,and the largest bearing force occurs at the endpoint of propeller bearing,which is coincident with the biggest deformation of ship propeller bearing in practical engineering.

关 键 词：轴系校中 有限元法 多点弹性支承 轴承反力和变形 

分 类 号：U664.21[交通运输工程—船舶及航道工程]