Research and Analysis on Dynamic of the Bolt Assembly of a Gatling Gun
To analyze and solve the breakdown of a certain Gatling gun in prototype experiment such as bolt fracture, core seizing and insufficient strength of interface while locking and unlocking, firstly the bolt forces in the lock-unlock process were analyzed; secondly, the dynamic model of Gatling gun system was established by means of multi-body dynamics software and the bolt movement process was calculated; thirdly, the dynamic stress and displacement analysis model was built using the finite element software, and then the stress and displacement curves of the key interface positions in the bolt lock-unlock process were obtained under the fire frequency demand; finally, the fault causes were found out by synthesizing the response characters, stress and displacement nephograms, and the bolt structure was improved which effectively increases shooting reliability and provides the theory basis and test direction for optimizing the bolt assembly.
1.Department of guns engineering, Ordnance Engineering College, 050003, Shijiazhuang;
2. Department of Antiaircraft Gun, Air Defense Forces Academy, 450052, Zhengzhou
Abstract：To analyze and solve the breakdown of a certain Gatling gun in prototype experiment such as bolt fracture, core seizing and insufficient strength of interface while locking and unlocking, firstly the bolt forces in the lock-unlock process were analyzed; secondly, the dynamic model of Gatling gun system was established by means of multi-body dynamics software and the bolt movement process was calculated; thirdly, the dynamic stress and displacement analysis model was built using the finite element software, and then the stress and displacement curves of the key interface positions in the bolt lock-unlock process were obtained under the fire frequency demand; finally, the fault causes were found out by synthesizing the response characters, stress and displacement nephograms, and the bolt structure was improved which effectively increases shooting reliability and provides the theory basis and test direction for optimizing the bolt assembly.
化斌斌1，王瑞林1，李涛2，范智滕1，李永建1. 某转管机枪机心部件动力学特性分析与改进研究[J]. 振动与冲击, 2015, 34(7): 178-182.
Hua Binbin1, Wang Ruilin1, Li Tao2, Fan Zhiteng1, Li Yongjian1. Research and Analysis on Dynamic of the Bolt Assembly of a Gatling Gun. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(7): 178-182.
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