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超高速撞击弹丸形状效应数值模拟研究

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ityImpacts,HarbinInstituteofTechnology,Harbin150001,China)Abstract:Inordertoprotecttheperformancesafetyofanorbitingvehicle,esanindispensablefactorinthedesignofaspacevehicle,especiallythosewithlongorbitallifeandlargesizestructures.AdoptingtheAUTODYNsoftware,paresballisticlimitcurvesonwhippleshieldbydif2ferentshapesofprojectiles,analysingthestatusofdebriscloudsonwhippleshieldbydifferentshapesofprojectiles,andgivingthereasonforallkindsofballisticlimitcurves’difference.Thedamagemechanismisdifferentonwhippleshieldbydifferentshapesofprojectiles.Thedegreeoffragmentationoftheprojectilesanddebrisclouddispersantischangedwiththevelocityoftheprojec2tiles、theratiobetweenlengthandradiusandtheimpactingdirection.Keywords:Whippleshield;Hypervelocityimpact;Shapeeffect;Ballisticlimitcurve;Numericalsimulation

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