环形桁架式可展开天线机构的分析与优化研究
发布时间：2018-11-08 14:11
【摘要】：随着科学技术不断发展和社会的不断进步,信息越来越被各个国家所重视,成为一种重要的资源。太空天线作为最主要的信息接收装置,它的发展越来越多的受到各个国家的关注。环形桁架式可展开天线由于其折叠比大,结构形式简单,口径大,并且天线的质量不会随着天线直径范围的增大而增加太多等一系列的优点,使得环形桁架式天线具有广阔的应用前景,被越来越多的国家所关注。本文将基于对环形桁架式天线设计的基础上,对天线进行了理论方面的分析,可以为以后天线的相关研究提供参考。本文完成了对环形桁架式可展开天线机构进行了方案设计,并利用Pro/E软件进行了天线机构的三维建模,基于D-H参数法对天线机构的基本单元进行了运动学分析,对环形桁架式天线机构的基本单元进行运动学性能的分析。同时利用ADAMS软件对天线机构基本单元进行了过程和仿真分析,求得天线机构基本单元在展开过程中杆件的展开速度和加速度。误差的存在会造成机构在运动的过程中不能按照预定的轨迹进行运动,本文考虑了天线杆件的加工误差和铰链的间隙误差这两个方面的误差对于天线机构展开的影响,通过对零件的加工误差和铰链的间隙误差进行详细的分析,得到当天线机构可以正常展开时,天线机构铰链所允许的最大间隙。利用ANSYS对环形桁架式天线机构完成了在完全展开之后的结构动力学分析和模态分析,得到了天线机构的前十阶固有频率,并对结果进行分析;考虑到不同的天线材料和不同的天线截面面积对于天线机构频率的影响,完成了当选取不同材料和不同的截面面积时,天线机构固有频率的变化;最后利用ANSYS对天线机构进行了优化。本文对环形桁架式可展开天线机构进行了运动学动力学分析、误差分析、模态分析以及结构优化等方面的研究,并且取得了阶段性成果,为后来的科研人员从事环形桁架式可展开天线的研究提供了一定的理论依据和参考。
[Abstract]:With the development of science and technology and the progress of society, information has been paid more and more attention to by all countries and become an important resource. As the most important information receiving device, the development of space antenna attracts more and more attention from various countries. The annular truss deployable antenna has a series of advantages, such as large folding ratio, simple structure, large aperture, and the mass of the antenna will not increase too much with the increase of the antenna diameter range. The annular truss antenna has a broad application prospect and has been paid more and more attention to by more and more countries. Based on the design of the annular truss antenna, this paper makes a theoretical analysis of the antenna, which can provide a reference for the related research of the antenna in the future. In this paper, the scheme design of the annular truss deployable antenna mechanism is completed, and the 3D modeling of the antenna mechanism is carried out by using Pro/E software. The kinematics analysis of the basic elements of the antenna mechanism is carried out based on the D-H parameter method. The kinematics performance of the basic elements of the annular truss antenna mechanism is analyzed. At the same time, the process and simulation analysis of the basic elements of antenna mechanism are carried out by using ADAMS software, and the expansion speed and acceleration of the basic elements of the antenna mechanism are obtained. The existence of the error will cause the mechanism to be unable to move according to the predetermined trajectory during the process of motion. In this paper, the effect of the errors of the processing error of the antenna rod and the clearance error of the hinge on the expansion of the antenna mechanism is considered. By analyzing the machining error of parts and the clearance error of hinge in detail, the maximum clearance of the hinge of antenna mechanism is obtained when the antenna mechanism can be unfolded normally. The structural dynamics analysis and modal analysis of the ring truss antenna mechanism are completed by using ANSYS. The first ten natural frequencies of the antenna mechanism are obtained and the results are analyzed. Considering the influence of different antenna material and antenna cross-section area on the frequency of antenna mechanism, the natural frequency of antenna mechanism is changed when different materials and different cross-section area are selected. Finally, the antenna mechanism is optimized by ANSYS. In this paper, kinematics and dynamics analysis, error analysis, modal analysis and structural optimization of ring truss deployable antenna mechanism are studied. It provides some theoretical basis and reference for the research of ring truss deployable antenna.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN820
本文编号：2318721
[Abstract]:With the development of science and technology and the progress of society, information has been paid more and more attention to by all countries and become an important resource. As the most important information receiving device, the development of space antenna attracts more and more attention from various countries. The annular truss deployable antenna has a series of advantages, such as large folding ratio, simple structure, large aperture, and the mass of the antenna will not increase too much with the increase of the antenna diameter range. The annular truss antenna has a broad application prospect and has been paid more and more attention to by more and more countries. Based on the design of the annular truss antenna, this paper makes a theoretical analysis of the antenna, which can provide a reference for the related research of the antenna in the future. In this paper, the scheme design of the annular truss deployable antenna mechanism is completed, and the 3D modeling of the antenna mechanism is carried out by using Pro/E software. The kinematics analysis of the basic elements of the antenna mechanism is carried out based on the D-H parameter method. The kinematics performance of the basic elements of the annular truss antenna mechanism is analyzed. At the same time, the process and simulation analysis of the basic elements of antenna mechanism are carried out by using ADAMS software, and the expansion speed and acceleration of the basic elements of the antenna mechanism are obtained. The existence of the error will cause the mechanism to be unable to move according to the predetermined trajectory during the process of motion. In this paper, the effect of the errors of the processing error of the antenna rod and the clearance error of the hinge on the expansion of the antenna mechanism is considered. By analyzing the machining error of parts and the clearance error of hinge in detail, the maximum clearance of the hinge of antenna mechanism is obtained when the antenna mechanism can be unfolded normally. The structural dynamics analysis and modal analysis of the ring truss antenna mechanism are completed by using ANSYS. The first ten natural frequencies of the antenna mechanism are obtained and the results are analyzed. Considering the influence of different antenna material and antenna cross-section area on the frequency of antenna mechanism, the natural frequency of antenna mechanism is changed when different materials and different cross-section area are selected. Finally, the antenna mechanism is optimized by ANSYS. In this paper, kinematics and dynamics analysis, error analysis, modal analysis and structural optimization of ring truss deployable antenna mechanism are studied. It provides some theoretical basis and reference for the research of ring truss deployable antenna.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN820
【参考文献】
相关期刊论文 前10条
1 刘丽坤;周志成;郑钢铁;田强;;大型网状可展开天线的动力学与控制研究进展[J];中国空间科学技术;2014年02期
2 徐磊;何柏岩;方永刚;;环形天线索网反射面成形方法研究[J];空间结构;2014年01期
3 胡海岩;田强;张伟;金栋平;胡更开;宋燕平;;大型网架式可展开空间结构的非线性动力学与控制[J];力学进展;2013年04期
4 关富玲;戴璐;;双环可展桁架结构动力学分析与试验研究[J];浙江大学学报(工学版);2012年09期
5 刘荣强;田大可;邓宗全;郭宏伟;;多模块构架式空间可展开天线背架的模态分析[J];北京理工大学学报;2011年06期
6 李彬;胡国伟;黄芬;;周边桁架可展开天线索网结构力密度优化找形方法[J];桂林电子科技大学学报;2009年05期
7 王娟;刘明治;;大型空间可展开天线动力学建模及仿真[J];系统仿真学报;2009年06期
8 梁君;赵登峰;;模态分析方法综述[J];现代制造工程;2006年08期
9 ;Static analysis of synchronism deployable antenna[J];Journal of Zhejiang University Science A(Science in Engineering);2006年08期
10 关富玲;侯国勇;赵孟良;;构架式可展开天线结构设计的程序实现[J];工程设计学报;2006年02期
相关硕士学位论文 前4条
1 李永亮;基于绝对节点坐标法的柔性梁动力学建模与分析[D];西安电子科技大学;2014年
2 刘行;三叉Bricard可折展机构的分析与大尺度网络组装研究[D];哈尔滨工业大学;2011年
3 胡国伟;可展开天线展开动力学分析与仿真研究[D];西安电子科技大学;2011年
4 施国凯;可展桁架的结构设计及动力学分析研究[D];浙江工业大学;2009年
，本文编号：2318721
本文链接：https://www.wllwen.com/kejilunwen/xinxigongchenglunwen/2318721.html
