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http://dx.doi.org/10.20910/JASE.2018.12.3.18

Computational Modal Analyses for the Propellant Tank and Small-Scaled First-Stage Models of Liquid-Propulsion Launch Vehicles  

Sim, Chang-Hoon (Department of Aerospace Engineering, Chungnam National University)
Kim, Geun-Sang (Department of Aerospace Engineering, Chungnam National University)
Kim, Dong-Goen (Department of Aerospace Engineering, Chungnam National University)
Kim, In-Gul (Department of Aerospace Engineering, Chungnam National University)
Park, Soon-Hong (Launcher Structures and Materials Team, Korea Aerospace Research Institute)
Park, Jae-Sang (Department of Aerospace Engineering, Chungnam National University)
Publication Information
Journal of Aerospace System Engineering / v.12, no.3, 2018 , pp. 18-25 More about this Journal
Abstract
This research aims to establish the finite-element modeling techniques for computational modal analyses of liquid propellants and flange joints of launch-vehicle structures. MSC.NASTRAN is used for the present computational modal analyses of the liquid-propellant tank and the small-scaled first-stage model. By means of the correlation between the measured and computed natural frequencies, the finite modeling techniques for liquid propellants and flange joints of launch-vehicle structures are established appropriately. This modal analysis using the virtual-mass method predicts well the bell mode of the liquid-propellant tank containing liquid. In addition, the present computation using RBE2 elements for modeling of flange joints predicts the first and second bending-mode frequencies within a relative error of 10%, which is better than the measured frequencies obtained from the modal test, for the small-scaled first-stage model containing liquid.
Keywords
Launch Vehicle; Liquid Propellent; Flange Joint; Virtual-Mass Method; Bell Mode; Bending mode;
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  • Reference
1 W. Johannes, "The virtual mass method," Virtual Mass Seminar, MSC Corporation, 2002.
2 C. H. Sim, G. S. Kim, D. G. Kim, I. G. Kim, S. H. Park, and J. -S. Park, "Experimental and Computational Modal Analyses for Launch Vehicle Models considering Liquid Propellant and Flange Joints," International Journal of Aerospace Engineering, Article ID 4865010, 2018.
3 R. P. Miller, and T. F. Gerus, "Experimental lateral bending dynamics of the Atlas-Centaur-Surveyor launch vehicle," NASA TM X-1837, 1969.
4 R. D. Buherle, J. D. Templeton, M. C. Reaves, L. G. Horta, J. L. Gaspar, P. A. Bartolotta, R. A. Parks, and D. R. Lazor, "ARES I-X launch vehicle modal test overview," IMAC-XXVIII, 2010.
5 T. Mazuch, J. Horacek, J. Trnka, and J. Vesely, "Natural modes and frequencies of a thin clamped-free steel cylindrical storage tank partially filled with water: FEM and measurement," Journal of Sound and Vibration, 1995.
6 S. Qiu, "Dynamic analysis of composite overwrap pressure vessel," MS thesis, Dept. of Mechanical Engineering, Vanderbilt University, 2004
7 F. Sabri, and A. A. Lakis, "Hydroelastic vibration of partially liquid-filled circular cylindrical shells under combined internal pressure and axial compression," The 50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2009.
8 H. Jalali, and F. Parvizi, "Experimental and numerical investigation of modal properties for liquid-containing structures," Journal of Mechanical Science and Technology, 2012.
9 G. S. Kim, Y. S. Jang and Y. M. Lee, "Design and analysis of KSLV-IIsection bolt flange joints," The Korean Society for Aeronautical & Space Sciences 2013 spring conference, 2013.
10 G. M. Henson, and B. A. Hornish, "An evaluation of common analysis methods for bolted joints in launch vehicles," The 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2010.
11 J. H. Han, S. H. Seo, H. W. Jang, and S. H. Park, "Modal correlation of tank filled with water," The Korean Society for Noise and Vibration Engineering spring 2016 conference, 2016.