联合仿真模型中的插值方法分析与实验  

Analysis and Experiment of Interpolation Method in Co-simulation Model

作　　者：蒋洋 杨建常 JIANG Yang;YANG Jianchang(Shenyang Ligong Universit y,Shenyang,Liaoning Province,110159 China;Unit 32683,Shenyang,Liaoning Province,110043 China)

机构地区：[1]沈阳理工大学,辽宁沈阳110159 [2]32683部队,辽宁沈阳110043

出　　处：《科技资讯》2021年第16期1-3,共3页Science & Technology Information

摘　　要：随着现代科技的进步与发展,计算机仿真的研究深度也在不断扩展,其复杂性也日益增加,采用的工程软件越来越多、不同种类的工程数据格式也越来越多。此时FMI功能模拟接口标准的横空出世,将不同软件工具建立的仿真工程相互连接起来。在仿真过程中对模型间数据交互进行分析,发现存在不同步长FMU模型数据交互情况,此时需要通过插值算法来减少结果误差。该文通过牛顿插值法和三次样条插值法进行内插实验,对这两种插值方法进行比较,分析其适用性。With the progress and development of modern science and technology,the research depth of computer simulation is also expanding,its complexity is also increasing,more and more engineering software and different types of engineering data formats are used.At this time,the FMI functional simulation interface standard was born,connecting the simulation projects established by different software tools.In the simulation process,the data interaction between models is analyzed,and it is found that there is FMU model data interaction with different steps.So interpolation algorithm is needed to reduce the result error.In this paper,Newton interpolation and Cubic spline interpolation method are used for interpolation experiments,the two interpolation methods are compared and their applicability is analyzed.

关 键 词：FMI联合仿真 数据交互 牛顿插值 三次样条插值 

分 类 号：TP393.07[自动化与计算机技术—计算机应用技术]