在某單級(jí)軸流壓氣機(jī)試驗(yàn)臺(tái)上,進(jìn)行了旋轉(zhuǎn)失速和喘振狀態(tài)下葉片振動(dòng)響應(yīng)的試驗(yàn)研究。利用電阻應(yīng)變片、動(dòng)態(tài)壓力傳感器、滑環(huán)式引電器和磁帶記錄儀等,錄取葉片振動(dòng)應(yīng)變和動(dòng)葉出口壓力信號(hào),然后回放磁帶,做信號(hào)處理。在對(duì)時(shí)域和頻域數(shù)據(jù)分析的基礎(chǔ)上,論述了旋轉(zhuǎn)失速和喘振狀態(tài)下葉片振動(dòng)響應(yīng)的特征。
關(guān)鍵詞:旋轉(zhuǎn)失速;喘振;葉片振動(dòng);試驗(yàn)研究
Abstract :Experimental research on blade vibration response at rotating stall and surge condition has been car2 ried out on a single2stage axial compressor test rig. Using resistance strain gage , dynamic pressure sensor , slip ring and tape recorder , the blade vibration strain and exit pressure signals of rotor blades are recorded and then processed. Based on data analysis in both time and frequency domain , characteristics of blade vibration response at rotating stall and surge condition are introduced.
Key words :rotating stall ; surge ; blade vibration ; experimental research