为研究不同结构尺寸的凹腔对支板尾缘涡脱落频率特性的影响,设计了用于一体化加力燃烧室的带凹腔支板部件,并对其进行了风洞冷态试验。对所测得的速度数据进行频谱分析,并与标准支板的相关数据进行对比。结果表明:开凹腔设计改变了涡脱落频率变化趋势,而不同结构尺寸的凹腔对尾迹区涡脱落频率的影响相近。 In order to study the influence of cavities with different structure sizes on the shedding frequency characteristics of the trailing edge of the support, a cavity supporting member with an integrated afterburner was designed and cooled in a wind tunnel. The measured velocity data were spectrum analyzed and compared with the data of the standard support. The results show that the open cavity design changes the trend of vortex shedding frequency, while the cavities with different structure sizes have similar effects on the vortex shedding frequency in wake region.