• CN:11-2187/TH
  • ISSN:0577-6686

›› 2010, Vol. 46 ›› Issue (23): 89-92.

• 论文 • 上一篇    下一篇

零航速仿生减摇鳍水动力模型改进

金鸿章;王帆   

  1. 哈尔滨工程大学自动化学院;哈尔滨工程大学船舶控制工程教育部工程研究中心
  • 发布日期:2010-12-05

Improving Hydrodynamic Model for Zero Speed Bionic Fin Stabilizer

JIN Hongzhang;WANG Fan   

  1. College of Automation, Harbin Engineering University Ship Control Engineering Research Center of Ministry of Education, Harbin Engineering University
  • Published:2010-12-05

摘要: 原有的零航速减摇鳍水动力建模采用单一的解析方法,忽略了减摇鳍的厚度、物理形状等对水动力模型的影响,同时,旋涡作用力的分析也较为粗糙,不但导致所建立的模型中含有较多的待定参数,而且造成模型与真实情况存在较大差距。针对这一问题,采用数值与解析相结合的分析方法,对零航速减摇鳍动态水动力模型及原有的建模方法进行改进与完善,力求使改进后的模型更加准确、细致,且不失工程实用性。将理论计算值与FLUENT仿真数据进行比较,展示了改进模型及建模方法的优越性。

关键词: 动态水动力, 改进模型, 减摇鳍, 零航速

Abstract: The single analytical method is used in modeling the existing hydrodynamic force model for zero speed fin stabilizers, where the effect of the fin thickness and shape on the hydrodynamic model is ignored during the modeling process and the analysis of the vortex drag is also crude. These problems result in not only more parameters to be determined in the model, but also great difference between the model and the real situation. In view of these problems, the composite method of the numerical and the analytical approaches is used to improve the hydrodynamic force model and its old modeling method in order to make the modified model more exact, and without loss of engineering practicability. Finally, the theoretical calculation value is compared with that from the FLUENT, and the advantages of the modified model and modeling method are demonstrated.

Key words: Fin stabilizer, Hydrodynamic force, Improved model, Zero speed

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