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首页> 外文期刊>Latin American Applied Research >CLOSED VESSEL EXPERIMENT MODELLING AND BALLISTIC PARAMETER ESTIMATION OF GUN PROPELLANTS FOR LIFETIME PREDICTION
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CLOSED VESSEL EXPERIMENT MODELLING AND BALLISTIC PARAMETER ESTIMATION OF GUN PROPELLANTS FOR LIFETIME PREDICTION

机译：寿命预测的火药推进剂封闭容器实验模型和弹道参数估计

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摘要

A closed vessel is an apparatus with very thick walls,in which propellants under test are burnt.After ignition,gaseous products and heat are produced.The time history of pressures is measured by piezoelectric transducers,and recorded in either an analog or digital way.For the design and simulation of a gun performance,it would be rather important if one could use the thousands of P versus t points generated by a single shot for the estimation of as many as possible ballistic parameters.The present work is devoted to the development of predictive models for the closed vessel,comparing the performance to real experimental data.Using known regression procedures(Maximum Likelihood,for instance),ballistic parameters are fitted and lifetime of the propellant can be predicted.This can be done once such parameters are related to its ageing process,which consists of a loss of volatile components.
机译：密闭容器是一种壁很厚的设备，燃烧着被测推进剂。点燃后会产生气态产物和热量。压力的时间历程由压电传感器测量，并以模拟或数字方式记录。对于枪支性能的设计和仿真，如果可以使用一次射击产生的成千上万的P对t点来估计尽可能多的弹道参数，那将是非常重要的。密闭容器的预测模型，将性能与实际实验数据进行比较。使用已知的回归程序（例如最大似然法），拟合弹道参数并可以预测推进剂的寿命。其老化过程，其中包括挥发性成分的损失。

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