小口径引信磁流变液保险机构延时特性研究  

Delay characteristics of small caliber fuze magneto-rheological fluid safe and arming device

作　　者：齐云波 陆静[1] 胡明[1] 王炅[1] 

机构地区：[1]南京理工大学机械工程学院,江苏南京210094

出　　处：《南京理工大学学报》2016年第3期334-338,共5页Journal of Nanjing University of Science and Technology

基　　金：国家自然科学基金(51175265)

摘　　要：为计算小口径引信磁流变液保险机构延期解除保险时间,通过分析其工作时的能量损失,建立其延期解除保险时间模型。通过数值模拟分析修正经验局部阻力系数,确定其新的取值范围。对比小口径引信磁流变液保险机构延期解除保险时间的计算值与实验测量值,采用经验公式计算得到的经验局部阻力系数计算时,最小误差为23.32%;采用数值仿真得到的经验局部阻力系数计算时,最大误差为13.47%,误差降低了9.85%。经验局部阻力系数对小口径引信磁流变液保险机构延期解除保险时间计算精度影响较大,需对其进行修正。To predict the delay arming time of a small caliber fuze magneto-rheological fluid safe and arming device ,a delay arming time model is built by analyzing its energy loss of work .An empirical local resistance coefficient is revised by numerical simulation and its new value range is confirmed . The calculated delay arming time of the small caliber fuze magneto-rheological fluid safe and arming device is compared with the test data .The minimum error is 23 .32%while using the empirical local resistance coefficient of an empirical formula , and the maximum error is 13 .47% while using the empirical local resistance coefficient of numerical simulation ,the error decreases by 9 .85%.The cal-culation accuracy of the delay arming time of the small caliber fuze magneto-rheological fluid safe＆amp;nbsp;and arming device is affected by the empirical local resistance coefficient ,and the empirical local re-sistance coefficient should be revised .

关 键 词：小口径 引信 磁流变液 保险机构 延期解除保险时间 能量损失 局部阻力系数 

分 类 号：TJ430[兵器科学与技术—火炮、自动武器与弹药工程]