火炮发射冲击载荷对制退机性能的影响研究

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振动与冲击 ›› 2014, Vol. 33 ›› Issue (12) : 111-116.

论文

火炮发射冲击载荷对制退机性能的影响研究

杨玉栋1,2，张培林1，傅建平1，田铖2，王成3

作者信息 +

Research on the effect of gun firing impulsive load on performance of recoil brake

YANG Yu-Dong1,2, ZHANG Pei-Lin1, FU Jian-Ping1, TIAN Cheng2, WANG Cheng3

Author information +

文章历史 +

摘要

为了研究火炮发射冲击载荷对制退机性能的影响，采用超声检测和压力测试相结合的方法分别对人工后坐和实弹射击条件下的制退机性能进行了对比研究。结果表明，火炮后坐结束时非工作腔内不存在传统意义上的真空段，复进时非工作腔提供的液压阻力远小于传统理论计算值，复进节制腔提供的复进液压阻力大于传统理论计算值。当制退机“主流”复进液压阻力系数取拟合值0.036，“支流”复进液压阻力系数取“主流”后坐液压阻力系数的约4.5倍时，复进速度计算结果与火炮实弹射击时的实测复进速度较为吻合；传统方法复进速度计算结果与人工后坐时的实测速度较为一致，传统的非工作腔真空段假设并不适用于有冲击载荷作用的火炮发射过程，据此改进的复进制动图可以更好地指导制退机设计。

Abstract

By using cavitation ultrasonic test and pressure test technique, the effect of gun firing impulsive load on performance of recoil brake was researched. The results show that the non-working chamber has no vacuum but full of recoil oil foam at the end of recoiling, recoil oil foam offers much smaller hydraulic resistance during counter-recoiling course, and the counterrecoil hydraulic resistance offered by control chamber is greater than the traditional calculated value. Comparisons show that when take the fitted value 0.036, the branch counterrecoil resistance coefficient take the value about 4.5 times of the master stream recoil resistance coefficient, the gun counterrecoil velocity calculated is closer to the measured velocity in ball firing test. The velocity calculated by traditional method is in agreement with the measured velocity in artificial recoil test. The traditional vacuum hypothesis is not applicable in gun firing with impulsive load effect. The recoil braking chart modified is more instructive for recoil brake design.

导出引用

杨玉栋;张培林;傅建平;田铖;王成. 火炮发射冲击载荷对制退机性能的影响研究[J]. 振动与冲击, 2014, 33(12): 111-116

YANG Yu-Dong;ZHANG Pei-Lin;FU Jian-Ping;TIAN Cheng;WANG Cheng. Research on the effect of gun firing impulsive load on performance of recoil brake[J]. Journal of Vibration and Shock, 2014, 33(12): 111-116