Accuracy assessment of gun-power-recoil simulation based on numerical value and shape similarity

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Journal of Vibration and Shock ›› 2015, Vol. 34 ›› Issue (10) : 157-160.

YANG Yu-liang1，QIN Jun-qi1，DI Chang-chun1，SUN Ye-zun2，LI Xiao-wei3

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Abstract

Gun-power-recoil test machine is a new-fashioned recoil simulation test machine, with high-speed mass impacting the muzzle to promote gun recoil. In order to analyze recoil simulation accuracy of the test method , through practice firing test and simulation firing test based on the test machine, recoil displacement, recoil velocity time series of two firing conditions were obtained. Numerical value similarity was represented by weighted average relative error of time series. Shape similarity was calculated by curvature relative error of time series. Comprehensive similarity was obtained based on multi-index evaluation theory, and recoil simulation accuracy of the test machine was analyzed. This research will provide a theoretical reference for the range application of gun-power-recoil test machine.

Key words

gun-power-recoil / curvature / accuracy assessment / numerical value similarity / shape similarity

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YANG Yu-liang1，QIN Jun-qi1，DI Chang-chun1，SUN Ye-zun2，LI Xiao-wei3. Accuracy assessment of gun-power-recoil simulation based on numerical value and shape similarity[J]. Journal of Vibration and Shock, 2015, 34(10): 157-160

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