- 期刊
UAV遭遇飛行積冰之危害探討
Hazardous Investigations for Unmanned Aerial Vehicles Encountered In-Flight Icing
摘要
當飛行器穿越冷雲層或雲雨區時，經常會遭遇到飛行積冰的情況。以現今的科技水準，絕大部份的通用航空及商用民航機都有機載防冰系統，但飛行積冰的不幸事故仍然發生，有些造成失控的因素至今仍未知。無人飛機是由地面操控人員來控制，且大部份無人飛機沒有完整的一套防冰系統，探討由飛行積冰造成無人飛機嚴重後果的未知因素是非常的重要。在本研究計畫中，特定無人飛機翼前緣上積冰所累積的一種尖銳邊緣形狀被挑選為飛行積冰的風洞試驗模型。將應用Vorstab程式配合計算流體力學程式，分析特定無人飛機構型之氣動力性能，數據經由風洞試驗驗證，在飛行積冰情況下的安定性與控制性之變化將在本文中呈現。
並列摘要
While flying vehicle passing through the cooling cloud layer or cloud rain area always encounter in-flight icing. Almost all the general aviations and commercial transports have the on-board ice protection system in current state of technology, but the mishaps of in-flight icing are still remained. Some factors to cause the loss of control have been unknown as yet. Unmanned Aerial Vehicle (UAV) is controlled by the ground operators and most of the UAVs do not have a complete set of ice protection system. To investigate the unknown factors due to a serious consequence of in-flight icing for the UAV is essential. In the present research project, a sharp-edged shape of ice accretions on the specific UAV wing leading edges is chosen as the wind-tunnel testing model of the in-flight icing. The Vorstab code and CFD code will be employed to analyze the aerodynamic performance for the specified UAV configuration and those data is validated by the wind tunnel. The variation of the stability and controllability at in-flight icing condition will be presented in this paper.