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考虑制退液空化的火炮制退机复进液压阻力计算

归档日期:07-01       文本归类:反后坐      文章编辑:爱尚语录

  考虑制退液空化的火炮制退机复进液压阻力计算_电子/电路_工程科技_专业资料。传统反后坐理论假设火炮后坐结束时制退机非工作腔内有真空段,基于该假设的火炮复进计算结果与实测结果有一定差异.以制退机非工作腔空化试验和压力试验为手段,研究了火炮后坐时制退液的空化现象及考虑制退液空化时制退机复进液压阻力的计算方法.研究结果表明:制退液在火炮后坐时发生了剧烈

  2013年6月 第4l卷第11期 机床与液压 MACHINE TOOL&HYDRAUUCS June 2013 V01.41 No.11 DOI:10.3969/j.issn.1001—3881.2013.11.025 考虑制退液空化的火炮制退机复进液压阻力计算 杨玉栋1,张培林1,傅建平1,张晓东2 (1.军械工程学院一系,河北石家庄050003;2.63926部队,北京102202) 摘要:传统反后坐理论假设火炮后坐结束时制退机非工作腔内有真空段,基于该假设的火炮复进计算结果与实测结果 有一定差异。以制退机非工作腔空化试验和压力试验为手段,研究了火炮后坐时制退液的空化现象及考虑制退液空化时制 退机复进液压阻力的计算方法。研究结果表明:制退液在火炮后坐时发生了剧烈空化,后坐结束时制退机非工作腔内充满 制退液空化泡,并不存在真空段。制退液空化泡是在复进过程中逐渐溃灭的,制退机非工作腔几乎不提供复进液压阻力。 采用传统理论计算方法会导致对制退机复进液压阻力的高估。考虑制退液空化效应时,计算出的制退机复进液压阻力功比 传统理论值小4.5%,火炮最大复进速度比传统理论值大10.5%。该结论为制退机的合理设计与故障诊断提供了参考。 关键词:制退机;制退液;空化;空化试验;压力试验;液压阻力 中图分类号:TJ303 文献标识码:A 文章编号:1001—3881 12013)11—093—4 Counter Recoiling Calculation of Hydraulic Resistance of Gun RecoH Brake Taking Recoil 0il Cavitation into Account YANG Yudon91,ZHANG Peilinl,FU Jianpin91,ZHANG Xiaodon92 (1.Department 1“,Ordnance Engineering 2.63926 College,Shijiazhuang Hebei 050003,China; Troops,Beijing 102202,China) on Abstract:The traditional recoil theory generally supposed that the vacuum was existed in the non-working chamber of recoil brake at the end of recoiling,and the gun counter-recoil calculation result based the hypothesis were discrepant with the test results.The recoil oil cavitation effect at recoihng of gun was researched,and the counter calculating method of hydraulic resistant taking recoil oil cavitation into account Was considered by using measures of cavitation test and pressure test in non—working chamber of recoil brake. are The research results show that the recoil oil cavities produced drastically in recoiling no course of the gun,and the non?working cham- ber of recoil brake is full of recoil oil foam at the end of recoiling,instead of vacuum is existed.The non-working chamber of recoil brake does not offer counter hydraulic resistance,for the recoil oil bubbles collapse gradually during counter-recoiling.The traditional theory cMeulafing method cavitation into can cause overrate of the counter-recoil hydraulic resistance of recoil brake.When taking effect of recoil oil resistance work of recoil brake is 4.5%less than traditional theorefi— account.the calculated counter-recoiling hydraulic cal value.and the ma)【imum counter-recoiling velocity of the gun is 10.5%greater pmvide a than traditional theoretical value.The conclusions reference for the reasonable design and fault diagnosis of recoil brake. Keywords:Recoil brake;Recoil oil;Cavitation;Cavitation test;Pressure test;Hydraulic resistance 制退机是一种液压缓冲器,通过挤压制退液高速 流过突缩流道而产生的液压阻力消

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