Impact Analysis of Lunar Lander Soft Landing Performance Caused by the Body Gravity Centerline Shift
Publication: Journal of Aerospace Engineering
Volume 28, Issue 4
Abstract
In order to obtain the lunar lander soft landing performance impact caused by the body gravity centerline shift, a seven-degree-of-freedom dynamic model is established based on the inertia force, and a dynamics and kinematics equation is deduced. The dynamic model was verified by the lunar lander scale model and soft landing impact experimental platform. Soft landing performance effects caused by the lander body gravity centerline shifts are analyzed according to the displacement of the body, the body overload, primary/secondary pillar load, and buffer processes. The research results show that the gravity centerline shift has a significant influence on the lunar lander soft landing performance; when the lunar lander lands on the lunar slope—in a downward direction along the slope—the appropriate shift of the position of the gravity centerline can effectively improve the soft landing performance and stability.
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References
Adams [Computer software]. MSC Software, Newport Beach, CA.
Admire, J., and Mackey, A. (1965). “Dynamic analysis of a multi-legged lunar landing vehicle to determine structural loads during touchdown.”, George C. Marshall Space Flight Center, Huntsville, AL.
Doiron, H. H., and Zupp, G. A. (2000). “Apollo lunar module landing dynamics.”, 41st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conf. and Exhibit, Atlanta.
Dytran [Computer software]. MSC Software, Newport Beach, CA.
Hilderman, R. A., Mueller, W. H., and Mantus, M. (1966). “Landing dynamics of the lunar excursion module.” J. Spacecraft, 3(10), 1484–1489.
Howlett, J. T. (1968). “An analytical procedure for predicting the two-dimensional impact dynamics of a spacecraft landing gear.”, Langley Research Center, Langley Station, Hampton, VA.
Jiang, W., Huang, W., and Wang, H. (2009). “Application of ADAMS user-written subroutine to simulation of soft-landing.” Spacecraft Recovery Remote Sens., 30(4), 11–18 (in Chinese).
Lavender, R. E. (1963). “Equations for two-dimensional analysis of touchdown dynamics of spacecraft with hinged legs including elastic, damping, and crushing effects.”.
Lavender, R. E. (1964). “Touchdown dynamics analysis of spacecraft for soft lunar landing.”, George C. Marshall Space Flight Center, Huntsville, AL.
Lavender, R. E. (1965). On touchdown dynamics analysis for lunar lander, Boston, MA.
Lin, Q., and Nie, H. (2011a). “Design and deploying kinematic analysis of a new deployable and lockable soft-landing mechanism.” J. Astronaut, 32(5), 975–981 (in Chinese).
Lin, Q., and Nie, H. (2011b). “Soft landing impact simulation of lunar lander.” Chin. Space Sci. Technol., 31(5), 70–75 (in Chinese).
Lin, Q. (2012). “Investigation on several key problems for performance of lunar lander soft landing.” Nanjing Univ. of Aeronautics and Astronautics, Nanjing, China.
Lin, Q., Nie, H., Ren, J., and Chen, J. (2012). “Investigation on design and reliability analysis of a new deployable and lockable mechanism.” Acta Astronaut., 73(9), 183–192.
MATLAB [Computer software]. MathWorks, Natick, MA.
Nohmi, M., and Miyahara, A. (2005). “Modeling for lunar lander by mechanical dynamics software.”, Kagawa Univ., Takamatsu, Kagawa, Japan.
Wan, J., Nie, H., and Li, L. (2010). “Analysis of the landing impact performance for lunar landing leg with transient dynamic method.” Acta Armamentarii, 31(4), 22–28 (in Chinese).
Zongquan, D., Shaochun, W., and Haibo, G. (2003). “Upper limit amplitude of lunar lander based on ADAMS software.” J. Harbin Inst. Technol., 35(12), 1492–1495 (in Chinese).
Zupp, G. A., and Doiron, H. H. (1971). “A mathematical procedure for predicting the touchdown dynamics of a soft-landing vehicle.”, Manned Spacecraft Center, Houston.
Information & Authors
Information
Published In
Journal of Aerospace Engineering
Volume 28 • Issue 4 • July 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Dec 23, 2013
Accepted: Jun 5, 2014
Published online: Aug 7, 2014
Discussion open until: Jan 7, 2015
Published in print: Jul 1, 2015
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