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Experimental study on penetration of deep space impactor


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Experimental study on penetration of deep space impactor
Zhou Cheng1Yuan Yuan23Yu Cungui1Wang Yan1Gan Lin1
1.School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China; 2.Shanghai Institute of Satellite Engineering,Shanghai 201109,China; 3.Shanghai Key Laboratory of Deep Space Exploration Technology,Shanghai 201109,China
impactors penetration tests celestial bodies sliding guns concrete targets
The penetration process of a deep space impactor into celestial bodies is simulated through ground tests,and the relevant data of the penetration process are obtained. A 125 mm sliding gun is used as the launching platform of the impactor,a C20 cylindrical plain concrete target is poured,and the impactor is launched against the target. The penetration depth,damage and overload data of the impactor at different velocities are obtained. The test results show that it is reasonable and effective to use the 125 mm sliding gun as launching platform. The penetration depth of the impactor reaches more than 1 m when the impact velocity is 662 m/s,and meets the strength requirements.


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Last Update: 2020-06-30