金星探测机械展开式进入飞行器的变质心控制  

Moving-Mass Control of Venus Explorer Mission using Mechanically-Deployed Entry Decelerator

作　　者：杨周[1] 李旭东[1] 陈建平[1] 张红英[1] 童明波[1] 

机构地区：[1]南京航空航天大学航空宇航学院,江苏南京210016

出　　处：《航空计算技术》2015年第6期95-98,共4页Aeronautical Computing Technique

基　　金：航空科学基金项目资助(2012ZC52035);江苏省高校优势学科建设工程基金项目资助

摘　　要：基于金星探测的任务需求,美国提出了一种基于机械展开式结构的金星进入飞行器。为有效控制机械展开式飞行器的姿态,且得到其影响特征参数的稳定性限制范围,设计了移动质量块在初始位置往复正弦运动的控制规律;建立了单质量块的变质心进入飞行器系统控制模型,并利用CFD-FASTRAN软件计算了气动参数;对飞行器的变质心动力学模型进行简化;计算得到了质量块的移动幅度、质量比、飞行器的自旋频率特征参数的取值范围,保证了飞行器的姿态控制稳定性。For the need of Venus detection,Mechanically- Deployed entry decelerator was proposed by NASA,in order to effectively design the attitude control of the vehicle and get the stability limit of the characteristic parameters,the control law of the motion of the moving mass in the initial position is designed; the moving- mass control system dynamic model are constructed,the aerodynamic coefficients of the vehicle are calculated by the CFD- FASTRAN software; the moving- mass dynamic model are simplified; the range of the moving amplitude,mass ratio and the spin frequency characteristic parameter of the moving mass is calculated,the attitude control stability of the aircraft is ensured.

关 键 词：机械展开式进入飞行器 变质心控制 金星探测 特征参数 

分 类 号：V211[航空宇航科学与技术—航空宇航推进理论与工程]