基于PVDF压电薄膜的大口径火炮弹底发射装药挤压应力测试方法  

Measuring method for big area projectile base compression stress of propellant charge based PVDF piezoelectric film

作　　者：徐浩[1] 芮筱亭[1] 冯宾宾[1] 王燕[1] 

机构地区：[1]南京理工大学能源与动力工程学院,南京210094

出　　处：《振动与冲击》2012年第22期20-23,44,共5页Journal of Vibration and Shock

基　　金：国家自然科学基金(10902051;11102089);新世纪优秀人才支持计划资助(NCET-10-0075);南京理工大学自主科研专项计划资助项目(2011ZDJH11);总装重点预研基金;江苏高校优秀学科建设工程资助项目

摘　　要：发射环境下弹底发射装药承受的挤压应力和挤压破碎过程是发射装药发射安全性依据。基于发射装药膛内燃烧与力学环境试验装置和PVDF压电薄膜,建立大口径火炮弹底发射装药挤压应力PVDF传感器测试方法,并首次用该方法试验获得自然温度和低温条件下的某大口径火炮弹底发射装药挤压应力时间历程,试验结果表明,该方法满足大口径火炮大面积弹底压力测试要求,为发射装药发射安全性研究提供新的测试手段。Getting compression process of a propellant charge and projectile base compression stress is a basis for launching safety of propellant charge. Based on combustion simulation and a mechanical test equipment of propellant charge in a chamber and a PVDF piezoelectric film, a measuring method using a PVDF compression stress sensor on a propellant charge of projectile base was established here, and the compression stress versus time curves under conditions of natural temperature and lower temperature were obtained using this method, The testing results showed that this method can be used to measure the compression stress of a big area projectile base. The study results provided a new measuring method for Study on launching safety of propellant charge.

关 键 词：PVDF压电薄膜 弹底压力传感器 发射安全性 

分 类 号：TJ303.4[兵器科学与技术—火炮、自动武器与弹药工程]