太空发电站参数化有限元建模与设计平台
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摘要
在进行太空发电站的动力学与控制研究时,由于其结构尺寸庞大,单元与节点众多,传统有限元建模方法效率极低,通常只能将其假设为刚体或刚柔耦合系统,但这种近似简化处理必然会导致真实动力学特性的缺失。因此,文章提出一种太空发电站参数化有限元建模方法并建立设计平台,旨在缩短有限元建模周期,提高太空发电站设计、分析与优化的效率。以平台式太空发电站为原型,介绍了其基本参数与有限元模型。定义了易用的有限元节点与单元编号规则并给出了参数设置过程。借助APDL、UIDL,以及TCL/TK的混合编程技术,建立了太空发电站参数化有限元模块及设计平台,利用简单的菜单及人机交互界面实现电站的参数化有限元建模,设计人员从输入参数到开始建模的前处理时间不会超过2min,提高了建模效率。
Due to the large dimension with multiple elements and nodes,the efficiency of finite element modeling(FEM)using traditional method is very low in dynamics and control simulation of Solar Power Satellite(SPS).The simplified model only can be assumed as rigid or rigid-flexible system,which will lead to modeling errors by this approximate simplified way.Firstly,aparametric FEM method and design platform for SPS were proposed to reduce the FEM modeling period and increase the efficiency of design,analysis and optimization.Based on planar SPS concept,the basic parameters and FEM were introduced.Secondly,the numbering rules for the nodes and elements were defined,and the process of parametric setwas also presented.Based on mixed programming technology of APDL,UIDL and TCL/TK,the FEM module and design platform were both constituted.The FEM modeling can be easily realized by menus and human computer interaction interface.The FEM process and the dynamic parameters were both given through a detailed example.The validity and applicability of the proposed method can be proved.
Due to the large dimension with multiple elements and nodes,the efficiency of finite element modeling(FEM)using traditional method is very low in dynamics and control simulation of Solar Power Satellite(SPS).The simplified model only can be assumed as rigid or rigid-flexible system,which will lead to modeling errors by this approximate simplified way.Firstly,aparametric FEM method and design platform for SPS were proposed to reduce the FEM modeling period and increase the efficiency of design,analysis and optimization.Based on planar SPS concept,the basic parameters and FEM were introduced.Secondly,the numbering rules for the nodes and elements were defined,and the process of parametric setwas also presented.Based on mixed programming technology of APDL,UIDL and TCL/TK,the FEM module and design platform were both constituted.The FEM modeling can be easily realized by menus and human computer interaction interface.The FEM process and the dynamic parameters were both given through a detailed example.The validity and applicability of the proposed method can be proved.
引文
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[15]许孟辉,邱志平.三角形机翼参数化有限元网格划分与调整方法[J].北京航空航天大学学报,2015,41(9):1659-1665.XU M H,QIU Z P.Parametric finite element meshing and adjustment for delta wing[J].Journal of Beijing University of Aeronautics and Astronautics,2015,41(9):1659-1665(in Chinese).
[16]闫伟天,罗明强,刘虎,等.基于自动有限元建模的民机机翼结构布局优化[J].北京航空航天大学学报,2013,39(4):463-468.YAN W T,LUO M Q,LIU H,et al.Layout optimization of civil airplane wing structure based on automated finite element modeling[J].Journal of Beijing University of Aeronautics and Astronautics,2013,39(4):463-468(in Chinese).
[17]杨辰,刘宇飞,张兴华,等.一种太阳帆结构有限元快速建模与后处理方法:中国,CN103886126A[P].2014-06-25.
[18]BARMAC K TALEGHANI,DAVID W SLEIGHT,DANNIELLA M MUHEIM,et al.Assessment of analysis approaches for solar sail structural response[C].49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference&Exhibit,15-17 July,2013,San Jose,California,USA.
[2]王希季,闵桂荣.发展空间太阳能电站引发新技术产业革命[J].能源与节能,2011(5):1-2,15.WANG X J,MIN G R.New technology industrial revolution triggered by the development of space solar power station[J].Energy and Energy Conservation,2011(5):1-2,15(in Chinese).
[3]王立,侯欣宾.空间太阳能电站的关键技术及发展建议[J].航天器环境工程,2014(4):343-350.WANG L,HOU X B.Key technologies and some suggestions for the development of space solar power station[J].Spacecraft Environment Engineering,2014(4):343-350(in Chinese).
[4]侯欣宾,王立,朱耀平,等.国际空间太阳能电站发展现状[J].太阳能学报,2009,30(10):1443-1448.HOU X B,WANG L,ZHU Y P,et al.Summary of the international space solar power systems[J].Acta Energiae Solaris Sinica,2009,30(10):1443-1448(in Chinese).
[5]张兴华,侯欣宾,王立,等.空间太阳能电站聚光模式研究[J].中国空间科学技术,2016,36(2):1-12.ZHANG X H,HOU X B,WANG L,et al.Investigation of light concentrating mode for SSPS[J].Chinese Space Science and Technology,2016,36(2):1-12(in Chinese).
[6]王立,成正爱,张兴华,等.空间太阳能电站发展展望[J].国际太空,2017(10):14-23.WANG L,CHENG Z A,ZHANG X H,et.al.Development of solar power sarellite[J].Space International,2017(10):14-23(in Chinese).
[7]侯欣宾,王立,张兴华,等.多旋转关节空间太阳能电站概念方案设计[J].宇航学报,2015,36(11):1332-1338.HOU X B,WANG L,ZHANG X H,et al.Concept design on multi-rotary joints SPS[J].Journal of Astronautics,2015,36(11):1332-1338(in Chinese).
[8]杨阳,段宝岩,黄进,等.OMEGA型空间太阳能电站聚光系统设计[J].中国空间科学技术,2014,34(5):18-23.YANG Y,DUAN B Y,HUANG J,et al.SSPSOMEGA:a new concentrator system for SSPS[J].Chinese Space Science and Technology,2014,34(5):18-23(in Chinese).
[9]YANG C,HOU X B,WANG L.Thermal design,analysis and comparison on three concepts of space solar power satellite[J].Acta Astronautica,2017,137:382-402.
[10]YANG C,ZHANG X P,HUANG X Q,et al.Optimal sensor placement for deployable antenna module health monitoring in SSPS using genetic algorithm[J].Acta Astronautica,2017,140:213-224.
[11]魏乙,邓子辰,李庆军,等.绳系空间太阳能电站动力学响应分析[J].宇航学报,2016,37(9):1041-1048.WEI Y,DENG Z C,LI Q J,et al.Analysis of dynamic response of tethered Space Solar Power Station[J].Journal of Astronautics,2016,37(9):1041-1048(in Chinese).
[12]吴志刚,刘玉亮,张开明,等.高阶重力和力矩对空间太阳能电站运动的影响[J].空间控制技术与应用,2016,42(4):1-5.WU Z G,LIU Y L,ZHANG K M,et al.The influences of higher order gravitational force and torque to the motion of Space Solar Power Station[J].Aerospace Control and Application,2016,42(4):1-5(in Chinese).
[13]WU S N,ZHANG K M,PENG H J,et al.Robust optimal sun-pointing control of a large Solar Power Satellite[J].Acta Astronautica,2016,127:226-234.
[14]刘玉亮,邬树楠,吴志刚,等.空间太阳能电站地球同步拉普拉斯轨道动力学特性[J].中国空间科学技术,2016,36(5):1-8.LIU Y L,WU S N,WU Z G,et al.Dynamic characteristics of geosynchronous Laplace orbit for space solar power station[J].Chinese Space Science and Technology,2016,36(5):1-8(in Chinese).
[15]许孟辉,邱志平.三角形机翼参数化有限元网格划分与调整方法[J].北京航空航天大学学报,2015,41(9):1659-1665.XU M H,QIU Z P.Parametric finite element meshing and adjustment for delta wing[J].Journal of Beijing University of Aeronautics and Astronautics,2015,41(9):1659-1665(in Chinese).
[16]闫伟天,罗明强,刘虎,等.基于自动有限元建模的民机机翼结构布局优化[J].北京航空航天大学学报,2013,39(4):463-468.YAN W T,LUO M Q,LIU H,et al.Layout optimization of civil airplane wing structure based on automated finite element modeling[J].Journal of Beijing University of Aeronautics and Astronautics,2013,39(4):463-468(in Chinese).
[17]杨辰,刘宇飞,张兴华,等.一种太阳帆结构有限元快速建模与后处理方法:中国,CN103886126A[P].2014-06-25.
[18]BARMAC K TALEGHANI,DAVID W SLEIGHT,DANNIELLA M MUHEIM,et al.Assessment of analysis approaches for solar sail structural response[C].49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference&Exhibit,15-17 July,2013,San Jose,California,USA.