Prediction model of the ricochet trajectory based on oblique collision of projectile targets

DOI:	10.11809/bqzbgcxb2023.03.019
Keywords:	oblique collision of projectile target; ricochet; collision model; trajectory; trajectory prediction
Abstract:	For the common working condition of oblique collision of projectile targets in live ammunition training or an ammunition penetration test and its possible ricochet safety protection problem caused in the process, this paper proposes a prediction model of the ricochet trajectory based on oblique collision of projectile targets. This model can be used to scientifically predict the collision location of a projectile for one or multiple times and the trajectory of the projectile body after oblique collision, which is of great significance to formulate ricochet safety protection measures and avoid the occurrence of accidents.At the same time, it can also provide a theoretical basis for the design and optimization of the yaw structure in the protection engineering. Through the oblique impact test of a 30 mm caliber projectile and a steel target No.45 with a thickness of 90 mm, the maximum error between the second impact point of the projectile regulated in the trajectory prediction model and the test point is 3.14%, which meets the requirements of practical engineering application.
Published:	2023-03-28
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