CAJ | 학술논문

油膜厚度是油气润滑中一个非常重要的评价指标。利用油气润滑实验台，结合ECT电容电析成像技术，在正交实验法的基础上研究了不同供气压力、单次供油量和单次供油间歇时间三个润滑系统参数对水平油管中油气两相流油膜厚度的影响。实验结果表明：在实验研究的影响参数中，供气压力对于油膜厚度影响作用最大，单次供油间歇时间次之，单次供油量对油膜厚度的影响作用最小；同时在实验研究参数选取的范围内，得出最薄油膜厚度的实验条件为：供气压力0．4 MPa、单次供油量2 mL、单次供油时间间隔15 s。
유막후도시유기윤활중일개비상중요적평개지표。이용유기윤활실험태，결합ECT전용전석성상기술，재정교실험법적기출상연구료불동공기압력、단차공유량화단차공유간헐시간삼개윤활계통삼수대수평유관중유기량상류유막후도적영향。실험결과표명：재실험연구적영향삼수중，공기압력대우유막후도영향작용최대，단차공유간헐시간차지，단차공유량대유막후도적영향작용최소；동시재실험연구삼수선취적범위내，득출최박유막후도적실험조건위：공기압력0．4 MPa、단차공유량2 mL、단차공유시간간격15 s。
Thickness of oil film is an important evaluation criterion for two phase annular flow of oil-air lubrication.Orthogo-nal experiments of oil film′s thickness are done on test bed by means of ECT ( electrical capacitance tomography ) technology based on different air pressure, oil volume-per-cycle and lubrication cycle.The results show that compared with oil volume-per-cycle and lubrication cycle, air pressure has a largest effect on oil film′s thickness.And if air pressure, oil volume-per-cycle and lubrication cycle are set to 0.4MPa, 2mL, 15s respectively, the measured thickness of oil film is found thinnest.