| 自排导热发射时燃气对导弹的载荷特性研究 |
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| 引用本文： | 周成康,李 晨,党海燕,等.自排导热发射时燃气对导弹的载荷特性研究[J].战术导弹技术,2014(2):34-37,42. |
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| 作者姓名： | 周成康 李 晨 党海燕 等 |
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| 作者单位： | [1]北京特种机械研究所,北京100143 [2]总参四部驻北京地区军事代表室,北京100191 |
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| 摘 要： | 利用动网格技术对导弹从点火到出箱整个发射过程的非定常流场进行了仿真,重点分析了导弹发射时弹体受到的温度和压力载荷特性。计算结果表明,燃气流对导弹的载荷主要呈现三个特征:导弹点火后燃气对弹体有一个瞬间温度和压力冲击;导弹出箱后,由于箱内燃气流的溢出和箱口结构对燃气流的阻挡作用,高温燃气冲击导弹,使得导弹受到第二个温度冲击;在点火后约0.3~0.4 s,由于核心段冲击到箱壁形成反射,箱内燃气流场出现较大的波动现象。
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| 关 键 词： | 导弹 载荷冲击 特性分析 |
Research on the Loads Characteristic of Flow Gas Against Missile When the Gas Exhaust Automatic |
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| Zhou Chengkang,Li Chen,Dang Haiyan,He Weidong.Research on the Loads Characteristic of Flow Gas Against Missile When the Gas Exhaust Automatic[J].Tactical Missile Technology,2014(2):34-37,42. |
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| Authors: | Zhou Chengkang Li Chen Dang Haiyan He Weidong |
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| Affiliation: | 1. Beijing Specialized Machinery Institute, Beijing 100143, China; 2. The Four Part of General Staff Office in Beijing, Beijing 100191, China) |
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| Abstract: | The numerical simulation of the missile＇ s moving process is studied using the technique of dy- namic mesh, and the pressure and temperature loads characteristic of the missile getting from flow gas is analyzed. Three traits of load against the missile are summarized from the result. Firstly, an instantane- ous impact comes to the missile after missile ignition. Secondly, since the flow gas overflow from launcher and obstruct from the flange, a second impact comes to after missile fling off launcher. Thirdly, internal gas fields are fluctuating wildly from 0. 3 second to 0. 5 second after ignition, because the gas is reflected after impact to the wall of launcher. |
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| Keywords: | missile impact of loads characteristic analysis |
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