Zizheng GONG, Guangming SONG, Chuan CHEN, Pinliang ZHANG, Wenjin LIU, Qingming ZHANG, Renrong LONG. China Response to Risk of NEA and Kinetic Energy Impact Deflection Researches：Retrospect and Prospect[J]. AEROSPACE SHANGHAI, 2024, 41(5): 11
- AEROSPACE SHANGHAI
- Vol. 41, Issue 5, 11 (2024)
Fig. 1. The near earth object survey and positioning system
Fig. 2. The active defense system composition
Fig. 3. The kinetic impact on asteroids
Fig. 4. Experimental system for momentum transfer characteristics of kinetic impact on asteroids
Fig. 6. The relationship between pit depth ，pit diameter ，and impact velocity
Fig. 7. The relationship between the mass of the ejected object ，β and the impact velocity
Fig. 8. Simplified calculation model for hypervelocity impact［54］
Fig. 9. Simulation results of experiment No.1
Fig. 10. The influence of impactor shape on momentum transfer coefficient
Fig. 11. The influence of impactor density on momentum transfer coefficient
Fig. 12. The influence of asteroid strength and porosity on momentum transfer coefficient
Fig. 13. The impact zone zoning for kinetic impact on asteroids
Fig. 14. The influence of impact position on the change in velocity of asteroids
Fig. 15. The main stages of mission implementation
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Table 1. Physical and mechanical properties of asteroid simulation targets
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Table 2. Comparison between experimental and simulation results
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Table 3. The main parameters of three geometric shape impactors
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