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为改进飞机防冰技术和科学合理除冰,对冰和材料表面的冻黏强度进行研究。通过分析冻黏形成机理的和界面受力状态发现,冻黏强度受结冰环境和材料特性2大类因素影响,其中环境温度和材料表面粗糙度变化可引起冻黏界面状态改变,对冻黏强度的影响是非线性或非单调变化的,对此尚难以建立合适的理论预测模型。通过试验测试研究和分析了在不同温度和不同表面粗糙度下冰与常用金属铝、铜之间的冻黏强度。试验研究结果有助于认识冻黏机理和改进防/除冰技术,对于采取合适的表面加工技术以降低表面冻黏强度具有指导意义。
In order to improve the aircraft anti-icing technology and scientific and reasonable de-icing, the ice and the surface of the material to study the strength of the frozen. By analyzing the formation mechanism of freezing and sticking and the state of interface force, it is found that the freezing and sticking strength is affected by two kinds of factors: icing environment and material properties. The change of ambient temperature and material surface roughness can cause the change of the state of frozen-to-stick interface, The influence of intensity is non-linear or non-monotonous, so it is difficult to establish a suitable theoretical prediction model. Through the test, the freezing and sticking strength between ice and common metal aluminum and copper under different temperatures and different surface roughness was studied and analyzed. The experimental results are helpful to understand the mechanism of freeze-thawing and improve the anti-deicing technology, which is instructive for adopting suitable surface processing technology to reduce the surface freezing strength.