Structure Dynamics Analysis of Modularized Deep Space Detector

Abstract

Modularized and standardized concepts of deeps pace detectors are increasing along with the development of deep space exploration technique. Series connection between different sub-modules of deep space detectors are reasonable and popular, and it is a challenge to propose a reasonable dynamic response index for a single sub-module according to the dynamic response index of the overall series-connected structure. Based on the substructure modal synthesis method and the cantilever beam theory, It proposes a method for assigning design index of dynamic response for sub-modules of series-connected structures. The equation of fundamental frequencies of sub-modules are derived analytically based on three consumptions, and the relation between the dynamics of sub-modules and that of overall series-connected structure are discussed. The proposed dynamics index assignment method shows high accuracy and can provide critical instructions for the design of series-connected modularized deep space detectors.

Key words： deep space detector; modularize; sub-structure; dynamics; index assignment

References

[1] 张伟,方宝东,成玫,等. 空间飞行器分离式构型设计[J]. 上海航天,2013,30(1):1-7. Zhang W,Fang B D,Cheng M,et al. Design of separation configuration for spacecraft[J]. Aerospace Shanghai,2013,30(1):1-7.
[2] 黄文虎,曹登庆,韩增尧. 航天器动力学与控制的研究进展与展望[J]. 力学进展,42(4):68-76. Huang W H,Cao D Q,Han Z Y. Advances and trends in dynamics and control of spacecrafts[J]. Advances in Mechanics,42(4):68-76.
[3] Hurty W C. Vibrations of structural systems by component mode synthesis[J]. Journal of the Engineering Mechanics Division,ASCE,1960,86(4):51-70.
[4] Gladwell G M L. Branch mode analysis of vibrating systems[J]. Journal of Sound and Vibration,1964,1(1):41-59.
[5] 王文亮,杜作润. 结构振动与动态子结构方法[M]. 上海:复旦大学出版社,1985. Wang W L,Du Z R. Structural vibration and dynamic substructure method[M]. Shanghai:Fudan University Press,1985.
[6] 殷学刚,陈淮,塞开林. 结构振动分析的子结构方法[M]. 北京:中国铁道出版社,1991. Yin X G,Chen H,Sai K L. Substructure method for structural vibration analysis[M]. Beijing:China Railway Publishing House,1991.
[7] 郑兆昌. 复杂结构振动研究的模态综合技术[J]. 振动与冲击,1982(1):28-36. Zheng Z C. The study on vibration of complex structure systems by component mode synthesis techniques[J]. Journal of Vibration and Shock,1982(1):28-36.
[8] 宋景涛,方明霞. 模态综合法在ANSYS中的应用[J]. 计算机辅助工程,2007,16(3):145-148. Song J T,Fang M X. Application of component mode synthesis in ansys[J]. Computer Aided Engineering,2007,16(3):145-148.
[9] 王永岩.动态子结构方法理论及应用[M]. 北京:科学出版社,1999. Wang Y Y. Theory and application of dynamic substructure method[M]. Beijing:Science Press,1999.
[10] Hou S N. Review of modal synthesis techniques and a new approach[J]. Shock Vib. bull,1969,40(4):25-39.
[11] Goldman R L. Vibration analysis by dynamic partitioning[J]. AIAA J,1969,7(6):1152-1154.
[12] MacNeal R H. A hybrid method of component mode synthesis[J]. Computers Structures,1971,1(4):581-601.
[13] Rubin S. Improved component-mode representation for structure dynamic analysis[J]. AIAA J,1975,13(8):995-1006.
[14] Hurty W C. Vibration of structure by component mode synthesis[J]. J. Engr. Div.,ASCE,1960,86:51-59.
[15] 杜飞平,谭永华,陈建华,等. 航天器子结构模态综合法研究现状及进展[J]. 力学进展,2010,36(3):39-62. Du F P,Tan Y H,Chen J H,et al. Status and progress on substructural modal synthesis techniques for space vehicls[J] Advances in Mechanics,2010,36(3):39-62.
[16] Craig R R,Chang C J. On the use of attachment modes in substructure coupling for dynamic analysis[C]. AIAA/ASME 18th Struct. Dyn. and Materials. Conf.,SanDiego,CA:1977.