系留气球结构参数对稳态响应的影响研究  

Study on the influence of tethered balloon structural parameters on steady-state response

作　　者：庞策 王谦 杨纯祎 姜毅 何泽青 Pang Ce;Wang Qian;Yang Chunyi;Jiang Yi;He Zeqing(Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院空天信息创新研究院,北京100094 [2]中国科学院大学,北京100049

出　　处：《空天技术》2024年第3期103-112,共10页Aerospace Technology

基　　金：科技部重大专项“第二次青藏高原综合科学考察研究”子专题“极目二号浮空艇研制及其外场试验”(2019QZKK020801)。

摘　　要：针对系留气球系统结构参数对系留气球稳态响应影响的研究不足,本研究应用CFD方法计算出外部稳定流场作用于系留气球体心的稳态气动力系数,采用“弹簧-质点”模型对缆绳进行数学建模,建立了系留气球系统稳态平衡方程,并给出求解方法以及通过实验验证了其正确性,分析了载荷重心位置、球体初始俯仰角以及主系点位置等参数对系留气球稳态响应的影响规律。得出系留气球在风场中理想的稳态响应为俯仰角随着风速增大而不变或略微减小,并对此提出新的球体气动特性优化设计要求:在保证气动力系数尽可能小的前提下,通过优化球体形状使得升阻比增大、俯仰力矩系数减小。Insufficient research has been conducted on the influence of structural parameters of a tethered balloon system on its stable response.Using CFD methods,steady-state aerodynamic coefficients acting on the center of gravity of the tethered balloon due to external stable flow fields were calculated.A"spring-particle"model has been used to mathematically model the cable and establish the steady equilibrium equation of the tethered balloon system which has been solved by a given method that has been confirmed by experimentation.Analyzing various parameters such as load center of gravity position,initial pitch angle of the balloon,and location of the main suspension point,we have determined the rule for the effect of these parameters on the stable response of the tethered balloon system.We have found that the ideal stable response of the tethered balloon in a wind field occurs when the pitch angle remains constant or slightly decreases with increasing wind speed and based on this,we propose new requirements for designing the aerodynamic characteristics of the balloon:optimizing the shape of the ball to achieve an increased lift-drag ratio while minimizing aerodynamic force coefficients.

关 键 词：系留气球 稳态响应 迎风低头 载荷重心 数值仿真 

分 类 号：V273[航空宇航科学与技术—飞行器设计]