基于CCAR-29附录C的旋翼结冰特性研究  

Research for Rotor Icing Property based on CCAR-29 Appendix C

作　　者：曹普孙[1] 张威[1] 胡偶[1] CAO Pusun;ZHANG Wei;HU Ou(China Helicopter Research and Development Institute,Jingdezhen 333001,China)

机构地区：[1]中国直升机设计研究所

出　　处：《直升机技术》2019年第3期1-4,9,共5页Helicopter Technique

基　　金：民机旋翼防/除冰系统适航验证预先研究项目(MJ-2016-F-17)

摘　　要：采用旋翼CSD/CFD耦合方法,配平计算旋翼桨叶气动环境。基于等效二维流场分析方法,研究桨叶的结冰特性。根据CCAR-29附录C结冰包线,计算分析水滴直径、水滴收集率、温度等结冰参数对旋翼桨叶结冰特性的影响,及桨叶结冰对直升机旋翼悬停和平飞性能的影响。计算结果表明:旋翼桨叶最佳水滴收集率为20μm左右,环境温度-10℃至-15℃左右,桨叶易结双尖冰,严重影响旋翼性能。An analysis process involving the coupling of CSD and CFD for rotor was applied to compute the aerodynamic environment of rotor blades. A method for the equivalent 2 D flow along the blade was studied for the blade icing. Based on appendix C to CCAR-29,the icing parameters,such as MVD,catch efficiency,temperature,were important effect factors to the rotor blade icing.The icing analysis approach was applied to study rotor performance for the iced blades. The results showed that the worst case VMD value was around 20μm. As the temperature gets colder around-10℃ to-15℃,the ice shape was changed to double horn glaze ice,which has serious effect on the rotor performance.

关 键 词：旋翼 结冰 参数 旋翼性能 

分 类 号：V211.52[航空宇航科学与技术—航空宇航推进理论与工程] V321.229