Coring Bit with Enhanced Structural Parameters for Improved Lunar Soil Sampling and Reduced Mechanical Disturbance
Publication: Journal of Aerospace Engineering
Volume 29, Issue 4
Abstract
A new coring bit with a barrier ring was developed to address the disturbance problem associated with the common method of lunar soil sampling. This new coring bit is presented in this paper along with an analysis of the physical characteristics of regolith and coring bits. The structural parameters of the barrier ring, which disturbs the original state of the soil, are also analyzed. A user-defined material, based on the user-defined material mechanical behavior (UMAT) subroutine in the ABAQUS finite-element software, was used to simulate the contact area between the lunar soil and the barrier. The simulation results showed that the structure of the barrier ring has a significant effect on the stress and displacement produced in the lunar soil below the coring bit, but has little effect on the soil inside the ring. The test results showed that the coring bit with the barrier ring achieves a higher coring rate and causes less disturbance than a common bit.
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Acknowledgments
The authors thank the China Academy of Space Technology (CAST) for its help during the investigation. This study was supported by the National Defense Science and Technology Major Project (Grants TY3Q20110001 and TY3Q20110005) and by the Programme of Introducing Talents of Discipline to Universities (B07018).
References
ABAQUS [Computer software]. Dassault Systèmes Simulia, Providence, RI.
Bar-Cohen, Y., Sherrit, S., Dolgin, B. P., Bridges, N., Bao, X. Q., and Chang, Z. S. (2001). “Ultrasonic/sonic driller/corer (USDC) as a sampler for planetary exploration.” Proc., IEEE Aerospace Conf. on the Topic of “Missions, Systems, and Instruments for In Situ Sensing, IEEE Computer Society, Billings, MT, 263–271.
Carrier, W. D. (2003). “Particle size distribution of lunar soil.” J. Geotech. Geoenviron. Eng., 956–959.
Carrier, W. D., III, and Mitchell, J. K., and Mahmood, A. (1973). “The relative density of lunar soil.” Proc., 4th Lunar and Planetary Science Conf., Universities Space Research Association (USRA), Houston, 2403–2411.
Deng, Z. Q., Tian, Y., and Tang, D. W. (2013). “Research on new structure coring bit for extraterrestrial bodies exploration.” Chin. J. Mech. Eng., 49(19), 104–110.
Duncan, J. M., and Chang, C. Y. (2002). “Nonlinear analysis of stress and strain in soils.” A history of progress selected U.S. papers in geotechnical engineering (geotechnical special publicationno. 118), ASCE, Reston, VA, 1629–1653.
Godwin, R. J., and Spoor, G. (1977). “Soil failure with narrow tines.” J. Agric. Eng. Res., 22(3), 213–228.
Heiken, G., Vaniman, D., and French, B. (1991). Lunar sourcebook: A user’s guide to the moon, Cambridge University Press, Cambridge, U.K.
Landon, M. M., DeGroot, G. J., and Sheahan, T. (2007). “Nondestructive sample quality assessment of a soft clay using shear wave velocity.” J. Geotech. Geoenviron. Eng., 424–432.
Masafumi, I., and Ronaldo, L. F. (2011). “Direct shear tests on JSC-1A lunar regolith simulant.” J. Aerosp. Eng., 433–441.
McKay, D. S., et al. (1991). The lunar regolith, the lunar sourcebook, Cambridge University Press, Cambridge, U.K.
Mitchell, J. K., et al. (1972). “Mechanical properties of lunar soil: Density, porosity, cohesion, and angle of friction.” Proc., 3rd Lunar Science Conf., MIT Press, Cambridge, MA, 3235–3253.
Perko, H. A., Nelson, J., and Green, J. (2006). “Mars soil mechanical properties and suitability of mars soil simulants.” J. Aerosp. Eng., 169–176.
Rosa, U. A., and Wulfsohn, D. (1999). “Constitutive model for high speed tillage using narrow tools.” J. Terramech., 36(4), 221–234.
Santagata, M., and Germaine, J. T. (2005). “Effect of OCR on sampling disturbance of cohesive soils and evaluation of laboratory reconsolidation procedures.” Can. Geotech. J., 42(2), 459–474.
Silk, E. A., and Creel, R. (2007). “Technology development for lunar thermal applications and the next generation of space exploration.” Proc. Inst. Mech. Eng.—Part G: J. Aerosp. Eng., 221(2), 305–309.
Taylor, L. A., and Meek, T. T. (2005). “Microwave sintering of lunar soil: Properties, theory, and practice.” J. Aerosp. Eng., 188–196.
Tian, Y., Deng, Z. Q, and Tang, D. W. (2012). “Structure parameters optimization and simulation experiment of auger in lunar soil drill-sampling device.” Chin. J. Mech. Eng., 48(23), 10–15.
Zuo, W. R., Wu, Y. D., Li, Z. G., and Li, N. (2009). “Theoretical analysis of disturbance of soils caused by penetration of soil samplers.” J. Hohai Univ., 37(6), 702–709.
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Published In
Journal of Aerospace Engineering
Volume 29 • Issue 4 • July 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Jun 4, 2014
Accepted: Nov 18, 2015
Published online: Feb 8, 2016
Published in print: Jul 1, 2016
Discussion open until: Jul 8, 2016
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