摘要
翼伞具有良好的气动性能和优秀的操控能力,在空降、空投、运动、表演、救生、军事、航空航天等领域都有着广泛应用。随着对大质量载荷需求的增加,大型翼伞的开发尤为重要。在大型翼伞的动力学研究中,操纵转弯动力学是其关键环节。文章从牛顿力学基本原理出发,从理论推导、计算流体力学仿真、空投试验三个方面计算了大型翼伞系统的侧力系数,并推导建立了大型翼伞系统的六自由度模型。同时,对大型翼伞系统的转弯操纵性能进行了仿真分析,仿真结果与试验数据对比吻合较好,弥补了以往研究中缺少试验数据对比的不足。文章验证了所建立模型的合理性,对工程应用具有一定指导意义。
The parafoil has good aerodynamic performance and excellent control ability,and is widely used in airborne,airdrop,sports,performance,lifesaving,military,aerospace and other fields.With the increase in the demand for heavy load,the development of large parafoil is particularly importantly.In the dynamic study of large parafoil,maneuvering and turning is the key link.Based on the basic principles of Newtonian mechanics,the lateral force coefficients of the large parafoil system is calculated from three aspects:theoretical derivation,Computational Fluid Dynamics(CFD)simulation,and airdrop test,and finally a six degrees of freedom model of the large parafoil system is deduced.At the same time,the simulation analysis of the turning control performance of the large parafoil system is carried out,which is in good agreement with the experimental data,making up for the lack of comparison of experimental data in the previous studies.The results of the paper verify the rationality of the established model,which has a certain guiding significance for engineering.
作者
王国庆
滕海山
王奇
WANG Guoqing;TENG Haishan;WANG Qi(Beijing Institute of Space Mechanics and Electricity,Beijing 100094,China)
出处
《航天返回与遥感》
CSCD
北大核心
2021年第2期49-58,共10页
Spacecraft Recovery & Remote Sensing
关键词
大型翼伞
侧力系数
转弯运动特性
计算流体力学仿真
空投试验
large parafoil
lateral force coefficients
turning motion characteristics
Computational Fluid Dynamics(CFD)simulation
airdrop test
