| 航天器推进剂晃动与控制系统之间耦合效应的混合型估算方法(英文) |
| |
| 引用本文： | 齐乃明,董锴,李运迁,赵宝山.航天器推进剂晃动与控制系统之间耦合效应的混合型估算方法(英文)[J].南京航空航天大学学报(英文版),2009,26(2):137-146. |
| |
| 作者姓名： | 齐乃明 董锴 李运迁 赵宝山 |
| |
| 作者单位： | 哈尔滨工业大学航天学院,哈尔滨,150001,中国 |
| |
| 基金项目： | 航天科技创新基金(CASC200902)资助项目.Foundation item: Innovation Foundation of Aerospace Science and Technology |
| |
| 摘 要： | 基于等效力学模型理论与计算流体力学技术,提出了一种用于估算航天器中推进剂晃动的力学影响的方法.以计算流体力学技术为依托,建立了晃动的等效力学模型并将其整合为晃动模块,以便在航天器导航控制回路的仿真分析中应用.该模块体现了航天器运动特征参数与推进剂晃动动力响应之间的映射关系,使其在用于分析晃动与控制系统之间的耦合效应时,比直接应用计算流体力学分析软件更为方便.该方法的正确性与优势通过检验算例得到了验证.通过在实例中应用,证明了该方法可方便地用于确定晃动的影响和检验数种防晃设计的有效性.
|
| 关 键 词： | 等效力学模型 计算流体力学技术 推进剂晃动 |
HYBRID APPROACH FOR ESTIMATING COUPLING EFFECT BETWEEN PROPELLANT SLOSHING DYNAMIC AND SPACECRAFT GNC |
| |
| Qi Naiming,Dong Kai,Li Yunqian,Zhao Baoshan.HYBRID APPROACH FOR ESTIMATING COUPLING EFFECT BETWEEN PROPELLANT SLOSHING DYNAMIC AND SPACECRAFT GNC[J].Transactions of Nanjing University of Aeronautics & Astronautics,2009,26(2):137-146. |
| |
| Authors: | Qi Naiming Dong Kai Li Yunqian Zhao Baoshan |
| |
| Institution: | School of Astronautics Engineering;Harbin Institute of Technology;Harbin;150001;P.R.China |
| |
| Abstract: | An approach based on equivalent mechanics theory and computational fluid dynamics (CFD) technology is proposed to estimate dynamical influence of propellant sloshing on the spacecraft. A mechanical model is established by using CFD technique and packed as a "sloshing" block used in spacecraft guidance navigation and control (GNC) simulation loop. The block takes motion characteristics of the spacecraft as inputs and outputs of perturbative force and torques induced by propellant sloshing, thus it is more co... |
| |
| Keywords: | equivalent mechanical model computational fluid dynamics (CFD) technique propellant sloshing |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
