摘要
针对回收式弹载记录仪在硬着陆瞬间因高冲击会使记录仪扭曲变形而导致内部电路损坏失效的问题,提出了一种抗高冲击的双层壳体复合防护结构。结合先验数据模拟仿真记录仪硬着陆侵彻受力过程,确定垂直侵彻记录仪承受最大冲击过载,以此为基础设计落锤冲击试验研究双层防护壳体对高冲击过载能量传递的衰减特性。试验结果表明在瞬时冲击过载峰值小于25 000 g时,双层壳防护结构能有效衰减冲击能量,吸能效果可达50%,可以保护内部电路安全。
Aiming at the problem of the distortion of the retrievable missile borne recoder caused by high impact can lead to the damage of the internal circuit when it lands on the hard surface,this paper demonstrates an anti-high shock double shell composite protective structure. In combination with priori data simulating the force procedure of the recorder's landing on the hard surface,with vertical penetration can make recorder bear the maximum shock overload as a test. Base on this,this paper designs drop hammer test to study the damping characteristics of double shell protective structure under high impact overload energy transmission attenuation. Test results prove that when the instantaneous impact peak overload is less than 25 000 g,double shell protective structure can effectively attenuate the impact energy,and that the rate of energy absorption can reach 50%,which can protect the security of the internal circuit.
作者
周优良
丁永红
刘雪飞
刘双峰
牛跃听
ZHOU Youliang DING Yonghong LIU Xuefei LIU Shuangfeng NIU Yueting(National Key Laboratory for Electronic Measurement Technology, NUC , Taiyuan 030051, Shanxi, China Key Laboratory for Instrumentation Science ＆ Dynamic Measurement of Ministry of Education, NUC, Taiyuan 030051 , Shanxi, China Ordnance Technological Research Institute, Shijiazhuang 050003, Hebei, China)
出处
《火炮发射与控制学报》
北大核心
2017年第2期54-58,共5页
Journal of Gun Launch & Control
基金
国家自然科学基金(61471385)
关键词
仪器仪表技术
双层壳
抗高冲击
落锤试验
能量吸收
可靠性
technology of instrument and meter
double shell
anti-high shock
drop hammer test
energy absorption
reliability
作者简介
周优良（1993-）男,硕士研究生,主要从事动态测试与智能仪器技术研究.E-mail：2402100200@qq.com
