Human Biomechanics in Prone Position Shooting without Support

doi:10.12382/bgxb.2021.0467

Abstract

Abstract: Tofurther understand human biomechanicsinprone positionshooting without support, investigation is made on the interaction between human and the gun by using QBZ95. The human-gun model in prone position without supportis established by AnyBody. Muscle responsesduring shooting,time sequence at the point of muscle activation,and force characterization of joints are obtained, andthe effect of different joint angles of the armon muscle activation is analyzed.The results show thatat the action time of gunpower gas and impact time of recoil,the rhomboidmuscleon the right side is most activated.At the impact time of counter-recoil, the biceps on the right side is most activated.The agonist thatkeeps the scapula and shoulder joint stable is activatedfirst, followed by the accessory agonist.The impact on the joints is mostly exerted on the acromioclavicular joint, followed by the glenohumeral joint and the elbowjoint.When shooting with QBZ95 in the prone position, both arms should be abducted less than 30 degrees.

Key words: proneposition, human-guncouplingmodel, biomechanics, shootwithoutsupport

CLC Number:

TJ22

CHENG Yong, WANG Yaping, CAO Jie, WANG Xinrui. Human Biomechanics in Prone Position Shooting without Support[J]. Acta Armamentarii, 2022, 43(9): 2283-2290.

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第43卷第9期2022 年9月
兵工学报ACTA ARMAMENTARII
Vol.43No.9Sep.2022