排灌机械工程学报2026，Vol.44Issue(6)：596-602,7.DOI:10.3969/j.issn.1674-8530.24.0224
振动控制静电微射流雾化特性试验研究
Experimental study on vibration-controlled electrostatic micro-jet atomization characteristics
摘要
Abstract
A piezoelectric ceramic actuator was used to apply sinusoidal vibration excitation to the jet,and a vibration-controlled electrostatic micro-jet atomization characteristic test platform was established.High-speed imaging technology was used to study the morphological change law of anhydrous ethanol simple jet mode under external vibration.By analyzing the length of the stable segment of the jet,the influence of different vibration parameters on micro-jet stability was explored.The results indicate that the applied vibration intensifies the transition of the electrostatic micro-jet from varicose instability to whipping instability,accelerates the transition from whipping instability to whipping-assisted bifurcation changes,expands the range of whipping-assisted bifurcation occurrence,and increases the voltage re-quired for the occurrence of dendritic fragmentation.As the vibration frequency f increases,the length of the stable section of the jet continues to decrease,and the whipping instability morphology is more significantly affected by the change in vibration frequencyf than the flexural morphology.At Bo=1.51,the decrease in the stable section length of the whipping morphology is 83.2％.As the vibration ampli-tude A increases,the length of the micro-jet stable segment gradually shortens.The flexural and whip-ping morphologies decrease by 44.4％and 64.6％,respectively,compared to the no-vibration condition when the vibration amplitude A is 7.5 μm.The length of the stable segment of the whipping morphology is more easily influenced by changes in vibration amplitude.关键词
静电微射流雾化/压电陶瓷促动器/射流稳定性/曲张不稳定/鞭动不稳定/简单射流模式Key words
electrohydrodynamic micro-jet atomization/piezoelectric ceramics actuator/jet stability/varicose instability/whipping instability/simple-jet mode分类
数理科学引用本文复制引用
周帅旗,罗翔宇,葛曦,赵文胜..振动控制静电微射流雾化特性试验研究[J].排灌机械工程学报,2026,44(6):596-602,7.基金项目
国家自然科学基金资助项目(52279089) （52279089）
中央高校基本科研业务费专项资金资助项目(2042023kf0201) （2042023kf0201）
