极地气垫船冰区操纵和甩尾特性

Investigation of Maneuverability and Tail-Flick of Polar Hovercraft

气垫船在冰雪环境机动航行时,存在运动响应滞后、航向稳定性差以及回转易出现侧漂的特性,严重时甚至会出现甩尾的失稳现象,影响航行安全,限制了气垫船综合使用性能,因而有必要开展气垫船冰雪表面操纵性和安全性研究。针对某型用于极区运输的极地气垫船,建立气垫船冰面航行的操纵性方程,获得了气垫船在冰雪表面航行的操纵运动规律,以及甩尾特性和甩尾限界,对气垫船在冰盖地区的应用具有较高工程意义和科学价值。

When the hovercraft is maneuvering in the ice and snow environment,it has the characteristics of lagging motion response,poor heading stability and easy side drift in rotation.More seriously,high-speed tail-flick may occur,which will affect the navigation safety and limit the comprehensive service performance of the hovercraft.Therefore,it is necessary to carry out the research on the maneuverability and safety of the hovercraft on the ice and snow surface.For a specific polar hovercraft used for polar transportation,the maneuverability equation of hovercraft sailing on ice is established,and the maneuvering motion law,tail flicking characteristics and bound of hovercraft sailing on ice and snow surface are obtained,which has high engineering significance and scientific value for the application of hovercraft in ice cover area.