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| 点火瞬态过程仿真模型参数辨识 | |
| 引用本文： | 李晓斌,金振中,张为华.点火瞬态过程仿真模型参数辨识[J].固体火箭技术,2007,30(4):287-291. |
| 作者姓名： | 李晓斌 金振中 张为华 |
| 作者单位： | 1. 中国人民解放军92493部队博士后科研工作站,葫芦岛,125000;中国人民解放军92941部队93分队,葫芦岛,125000 2. 中国人民解放军92941部队93分队,葫芦岛,125000 3. 国防科技大学,长沙,4100763 |
| 摘 要： | 建立了固体火箭发动机点火瞬态过程一维非定常流场仿真模型,采用系统辨识方法进行了模型参数不确定性研究。基于点火试验用缩比发动机试验结果,得到了传热模型参数和瞬态燃速模型参数的最优估计,提高了点火瞬态过程一维仿真模型的预估精度。采用近似方法,构建Kriging近似函数,有效解决了一维非定常流场仿真的计算复杂性问题。 |
| 关 键 词： | 固体火箭发动机 点火瞬态过程 模型参数 参数辨识 Kriging近似函数 |
| 文章编号： | 1006-2793（2007）04-0287-05 |
| 收稿时间： | 2006-05-15 |
| 修稿时间： | 2006-05-152006-06-20 |
Parameter identification of simulation model during ignition transient process |
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| LI Xiao-bin,JIN Zhen-zhong,ZHANG Wei-hua.Parameter identification of simulation model during ignition transient process[J].Journal of Solid Rocket Technology,2007,30(4):287-291. | |
| Authors: | LI Xiao-bin JIN Zhen-zhong ZHANG Wei-hua |
| Institution: | 1. Scientific Research Post-doctor Workstation of Unit 92493 CPLA, Huludao 125000, China; 2. No. 93 Element of Unit 92941 CPLA,Huludao 125000,China; 3. National Univ. of Defense Teehnology,Changsha 410073,China |
| Abstract: | One-dimensional unsteady flow simulation model during ignition transient process of SRM was established,and uncertainty of model parameters was investigated by means of system identification method.Based on experiment results of subscale motors for ignition test,optimum estimation of heat transfer model and transient burning-rate model parameters was obtained.The predicted accuracy of one-dimensional simulation model during ignition transient process was improved.The complex calculation for one-dimensional unsteady flow field simulation was effectively settled by using approximate method and Kriging approximate function. |
| Keywords: | solid rocket motor ignition transient process model parameter parameter identification Kriging approximation function |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |