一种压气机叶片截面厚度变化与静频关系研究

Study on the Relationship between the Section Thickness and the Static Frequency of a Compressor Blade

为研究叶片静频与叶片截面厚度的关系,建立了一种压气机叶片截面厚度变化的参数化模型,对其频率进行数值化分析。结果表明:叶片厚度均匀变化情况下,在一定范围内厚度变化与频率变化方向一致;叶片截面厚度梯度变化时,叶根至叶顶逐渐增大更有利于频率的控制。

In order to study the relationship between the frequency and the section thickness of compressor blade,a parametric model is established and analyzed.The results show that under the condition of uniform variation of blade thickness,the variation direction of blade thickness is consistent with the variation direction of frequency in a certain range;when the thickness gradient of blade section changes,the gradual increase from blade root to blade top is more conducive to the control of frequency.