喷射成形柱状坯尺寸模糊控制  

Fuzzy control for columnar deposit dimension in spray forming process

作　　者：曲迎东[1] 叶正涛[1] 古元军[1] 李荣德[1] 白彦华[1] 李润霞[1] 

机构地区：[1]沈阳工业大学材料科学与工程学院,沈阳110178

出　　处：《沈阳工业大学学报》2009年第4期374-378,共5页Journal of Shenyang University of Technology

基　　金：国家自然科学基金资助项目(50605045);辽宁省创新团队基金项目(2007T131);沈阳市应用基础研究计划项目(1081229-1-00)

摘　　要：为了提高沉积坯尺寸精度,研究了喷射成形过程中柱状沉积坯尺寸的模糊控制.在柱状喷射成形过程中,影响沉积盘进给调节系统的因素较多,数学模型难以建立,常规控制无法获得满意的效果.为此,提出了一种新的以沉积坯尺寸误差和误差变化率为输入量、以沉积盘进给速度为输出量,来完成对沉积盘进给量进行自动调节的模糊控制方案,并应用VC++编程语言实现.对模糊控制器的仿真结果表明,该模糊控制对沉积盘自动调节系统控制效果优良,为柱状沉积坯的有效制备提供了可靠保障.One of the main characteristics of spray forming process is to obtain the near-net shape of deposits. In order to improve the dimension precision of deposit, the fuzzy control of columnar deposit dimension in spray forming process was investigated. Because there exist many factors influencing the feeding regulation system of deposition plate in spray forming process, it is difficult to build the mathematic model and to obtain the satisfactory result by the normal control. Thus, a fuzzy control scheme was proposed, where the feeding amount of deposition plate was automatically adjusted with taking both deposition size error and error variation ratio as input variable as well as choosing the feeding speed of deposition plate as output variable, The fuzzy control scheme was realized using VC ＋＋ programming language. The simulation results for the fuzzy controllor show that the fuzzy control has good effect in controlling the automatic regulation system of columnar deposit and exhibits the great reliability in the preparation of columnar deposit.

关 键 词：模糊控制 VC++编程语言 喷射成形 柱状坯 沉积坯尺寸 模糊逻辑 

分 类 号：TG249.9[金属学及工艺—铸造]