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非线性粉体动态数学模型的参数估计
THE ESTIMATION OF PARAMETERS OF DYNAMIC MATHEMATICAL MODELS FOR NON-LINEAR POWDER BODIES
【摘要】 本文探讨了非线性粉体动态数学模型的参数估计方法,研制了用于该方法的计算机软件H-16。用该软件对雾化铁粉热压的实验数据进行处理,得到了令人满意的结果。本文还讨论了加速迭代过程的方法,将变步长辛普生积分算法作适当的改进,其积分运算速度可提高一到几十倍。
【Abstract】 The method for estimating the parameters of dynamic mathematical models for non-linear powder bodies and the computer program,H-16,based on this method were developed.The satisfactory results were got by processing the data of hot pressing experiment of atomized iron powder with the H-16.The way of accelerating iteration process was discussed also.By improving Simpson’s algorithm,for variable step length,integral operation may increase in speed by one to dozens of times.
【关键词】 参数估计;
非线性规划;
变度量法;
科学计算程序;
【Key words】 parameter estimation; non-linear programming; variable-metric method; scientific programs;
【Key words】 parameter estimation; non-linear programming; variable-metric method; scientific programs;
【基金】 中国科学院自然科学基金
- 【文献出处】 中南矿冶学院学报 , 编辑部邮箱 ,1989年01期
- 【分类号】TF124.1
- 【被引频次】2
- 【下载频次】33