隧道通风机叶片非线性应力场分析Nonlinear Stress Analysis on Blade of Tunnel Fan
何将庆,陈汉平,吴伟亮
HE Jiang-qing;CHEN Han-ping;WU Wei-liang (Shanghai Jiaotong University;
摘要(Abstract)：
应用三维有限元法对某型号地铁隧道通风机叶片进行应力场分析 ,计算中考虑了几何非线性的影响 ,给出了线性计算与非线性计算的结果比较 ,同时进行了加强筋强化效果的比较。计算表明 ,对于高展弦比的隧道通风机叶片 ,应力计算采用非线性方法是必要的。
The stress field in a model on fanner blade is analyzed by using 3-D finite element method.In computation,the influence of the blade's geometrical nonlinear is considered while the large defermation occurs.With the comparison of lincar and nonlinear computation,results show that it is necessary to use the nonlinear method in the stress computation in a high spect ratio.In additional,the strengthening result of the rib reinforcement is also given out.
关键词(KeyWords)：
风机叶片;几何非线性;加强筋
fan blade;geometrical nonlincar;rib reinforcement
基金项目(Foundation):
作者(Authors):
何将庆,陈汉平,吴伟亮
HE Jiang-qing;CHEN Han-ping;WU Wei-liang (Shanghai Jiaotong University;