摘要
为了计算挠性陀螺仪扭杆细颈的刚度,采用大型通用有限元分析软件ANSYS进行分析,必须首先建立挠性接头的有限元模型。文中用ANSYS交互运行界面和APDL语言相结合的办法对挠性接头进行建模,简单地改变模型中的某些参数值就可以建立新的模型;采用拖拉法生成完整的网格模型,能够更好地控制单元形状。最后列举了一种宽度的挠性接头的静力和模态分析例子,证实了扭杆细颈受到应力最大是挠性接头的最薄弱环节。
The finite element software ANSYS is applied to analyze the rigidity of the flexible joint, which is necessary to make its finite element model firstly. In this paper, a modeling method of the flexible joint is introduced through the combination of GUI and APDL. which is a very easy and fast method of modeling by changing the relevant parameter, extruding method is used to set up the whole mesh model to control the element's shape. A static and dynamic model analysis example of the flexible joint with one kind of width is given which confirms that the center of flexible joint is the most vulnerable tache.
出处
《弹箭与制导学报》
CSCD
北大核心
2007年第2期53-56,共4页
Journal of Projectiles,Rockets,Missiles and Guidance