高速旋转非对称支撑结构的有限元分析

The Finite Element Analysis of High-speed Rotary Unsymmetrical Structural Subassembly

目前,对高速旋转的非对称结构的离心变形分析尚停留在常规计算阶段,结构轻量化和抗变形能力的矛盾体现—最佳宽厚比难以确定,使得设计裕度较大。本文对此类结构的一个典型算例-偏心光刀组件进行了有限元分析,通过参数化设计建立了一系列光刀组件模型,计算了不同宽度、厚度、材料的多种光刀组件模型的离心变形,分析了变形趋势,确定了光刀的最佳宽厚比,并进行了实物验证。本文方法对同类结构的设计具有参考意义。

At present,the centrifuge deformation analysis of high-speed unsymmetric structure is adopt conventional calculation method,it is difficult to ascertain that the best flakiness ratio of the structure which affect the mass and the non-deformability.The author create a series of photovoltaic knife subassembly model through parameterization design,and use the finite element analysis,calculate the deformation of the model with different width,thickness and material,get the best flakiness ratio.The experiment validate the correctness of this analysis method.