中国舰船研究2017，Vol.12Issue(2)：78-83,6.DOI:10.3969/j.issn.1673-3185.2017.02.010
非均匀来流中加工误差螺旋桨的轴承力数值模拟
Numerical simulation on bearing force of propeller for machining errors in non-uniform inflow
摘要
Abstract
In order to study the bearing force caused by the machining errors of composite material propeller in non-uniform flow, the propeller was computed by changing the machining error of the propeller in six degrees of freedom, in which the main blade translates and rotates along the coordinate axis artificially by way of the statistical method. The bearing force of a DTMB P4119 propeller with a machining error was calculated according to the SST k-ω model and sliding meshing non-uniform flow to figure out the impact of various machining errors on the propeller, enabling a fundamental rule about the impact of various machining errors on a propeller's bearing force to be formed. The results show that vertical bearing force and horizontal bearing force increase linearly, and first-order blade frequency bearing force rarely changes with the increase of machining errors in each freedom; machining errors along the directions of diameter and pitch have a great impact on the propeller shaft's frequency bearing force. Therefore, we can put forward a more refined principle about the machining accuracy of propellers.关键词
螺旋桨/加工误差/非均匀来流/轴承力Key words
propeller/machining error/non-uniform inflow/bearing force分类
交通工程引用本文复制引用
于安斌,叶金铭,张凯奇..非均匀来流中加工误差螺旋桨的轴承力数值模拟[J].中国舰船研究,2017,12(2):78-83,6.基金项目
国家自然科学基金资助项目(51579243) （51579243）
