非线性粉体动态数学模型的参数估计

来源期刊：中南大学学报(自然科学版)1989年第1期

论文作者：贺安安 黄培云 吕海波

文章页码：72 - 78

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

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.