单级跨音压气机第1级可调静子在退喘过程中的气动力矩分析
收稿日期: 2023-02-13
修回日期: 2023-02-28
录用日期: 2023-06-07
网络出版日期: 2023-06-21
基金资助
国家级项目
Aerodynamic moment analysis of first stage variable stator vanes of single⁃stage transonic compressor in surge exit process
Received date: 2023-02-13
Revised date: 2023-02-28
Accepted date: 2023-06-07
Online published: 2023-06-21
Supported by
National Level Project
某单级跨音压气机在设计转速退喘过程中,第1级可调静子叶片(VSV)瞬间关闭且不受作动筒控制,从监控摄像头看到指示第1级可调静子角度状态的指针已经超出表盘关角度极限。紧接着第1级转子振幅增大,为退出该危险状态紧急降低压气机转速直至停车。为找出第1级可调静子异常关闭的原因,对其受到的气动力矩进行了分析。首先采用定常三维计算确定了第1级可调静子受到的气动力矩在压气机特性图上的分布,指出了气动力矩大的高风险三角区。其次通过三维非定常计算模拟了节气门快速打开后压气机流场以及气动力矩随时间的变化,揭示了可调静子异常关闭的原因。最后介绍了可避免这一危险情况的预防措施,这些措施在后续的单级压气机试验中被证明是有效的。
刘德龙 , 郭海宁 , 尹海宝 , 孟德君 . 单级跨音压气机第1级可调静子在退喘过程中的气动力矩分析[J]. 航空学报, 2023 , 44(24) : 128550 -128550 . DOI: 10.7527/S1000-6893.2023.28550
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