摘  要：為研究發(fā)射藥內(nèi)彈道性能隨著儲存時(shí)間增長的變化，通過高溫加速老化試驗(yàn)的方法模擬得到不同儲存時(shí)間的發(fā)射藥。利用密閉爆發(fā)器裝置對不同老化時(shí)間下的11/7發(fā)射藥、7/14發(fā)射藥的內(nèi)彈道參數(shù)進(jìn)行測試，得到發(fā)射藥燃燒過程中壓強(qiáng)隨時(shí)間以及燃速隨壓強(qiáng)的變化過程。試驗(yàn)結(jié)果表明隨著老化時(shí)間的增長，發(fā)射藥的最大膛壓越高；發(fā)射藥老化時(shí)間越長，在相同的壓強(qiáng)下發(fā)射藥燃速越大。但是不同老化時(shí)間發(fā)射藥的最大膛壓值及燃燒值相差幅度不大。
關(guān)鍵詞：發(fā)射藥；高溫加速老化；內(nèi)彈道性能；存儲時(shí)間
文獻(xiàn)標(biāo)志碼：A     文章編號：1674-5124（2016）01-0138-03
Study of interior ballistics property of propellant under accelerated ageing
ZHANG Yanming， LUO Xingbai， LIU Guoqing， ZHEN Jianwei， CHEN Yankun
（Ordnance Engineering College，Shijiazhuang 050003，China）
Abstract: In order to study the interior ballistics properties changing of propellants as the storage time goes， the propellants are attained by high temperature accelerated ageing tests. Interior ballistics properties of 11/7 and 7/14 propellants are tested by manometric bomb under different storage time， the pressure via time and burning rate via pressure changing procedure are got. The test results show that the value of max pressure and burning rating under same pressure increase as the storing times goes， but increment amplitude is small.
Keywords: propellant； high temperature accelerated ageing； interior ballistics property； storage time