基于改进结构的航空器Event模型碰撞风险分析  

Collision Risk Analysis of Aircraft Event Model Based on Multi Geometry Combined Shape Collision Box

作　　者：陈若涵 王在俊[1] 邱江 刘人杰 CHEN Ruohan;WANG Zaijun;QIU Jiang;LIU Renjie(Academy of Flight Technology and Safety,Civil Aviation Flight University of China,Guanghan 618300)

机构地区：[1]中国民用航空飞行学院民航飞行技术与飞行安全科研基地,广汉618300

出　　处：《舰船电子工程》2023年第8期89-93,109,共6页Ship Electronic Engineering

基　　金：四川省大学生创新创业项目(编号:S202110624268)资助。

摘　　要：为了提高航路容量,科学缩小航空器间隔标准,通过将经典Event模型碰撞盒改进为圆柱体与三棱锥拼接模型,提出了针对航空器在航路飞行阶段对于碰撞风险计算更为精确的改进Event模型。分别从垂向、纵向两个方面入手改进航路碰撞风险公式,并以航路飞行阶段的塞斯纳172,B737-800为算例进行分析。结果表明:改进的Event模型对于小型固定翼飞机的碰撞风险计算结果约为经典Event模型的8.47%,约为椭球体Event模型的33.92%,约为两圆锥体拼接Event模型的50.5%。对于中型客机的碰撞风险计算结果约为经典Event模型的9.36%,约为椭球体Event模型的47.75%,约为两圆锥体拼接Event模型的70.93%。结果表明,论文所提出的改进Event模型有效降低了风险计算冗余,并且相较于以往球体、椭球体、拼接圆锥、拼接棱锥等改进Event模型,精度更高。In order to improve the air route capacity and scientifically reduce the aircraft separation standard,an improved event model is proposed to calculate the collision risk more accurately during the air route flight phase by improving the classical event model collision box to the cylinder and pyramid splicing model.The collision risk formula is improved from the vertical and vertical aspects respectively,and the Cessna 172 and B737-800 in the flight phase of the route are analyzed as examples.The re⁃sults show that the collision risk calculation results of the improved event model for small fixed wing aircraft are about 8.47%of the classical event model,33.92%of the ellipsoid event model,and 50.5%of the two cone splicing event model.For the medium-sized passenger aircraft,the collision risk calculation results are about 9.36%of the classic event model,47.75%of the ellipsoid event model,and 70.93%of the two cone splicing event model.The results show that the improved event model proposed in this paper ef⁃fectively reduces the redundancy of risk calculation,and has higher accuracy than the previous improved event models such as sphere,ellipsoid,splicing cone and splicing pyramid.

关 键 词：Event模型 碰撞盒 圆柱体与三棱锥结构 塞斯纳-172 B737-800 

分 类 号：V328[航空宇航科学与技术—人机与环境工程]