功能梯度材料的低温挤压成形过程建模与实验研究

摘要/Abstract

摘要： 使用低温挤压成形方法制造功能梯度材料（FGM）过程中，膏体材料存在气泡、结块和一定程度的液相迁移现象，导致挤压成形过程难以控制。使用系统辨识的方法建立了FGM成形过程的差分模型，运用残差的方差分析方法对系统模型的阶次进行估计，运用递推最小二乘法对参数进行辨识，得到FGM成形的控制模型。设计了自适应控制器，对FGM成形过程进行实时控制。实验验证了控制模型的准确性和控制方法的有效性。

关键词: 功能梯度材料, 低温挤压成形, 系统辨识, 自适应控制

Abstract: In the making processes of the FGMs by the FEF methods, the extrusion processes were difficult to control due to the presence of bubbles, agglomeration and a certain degree of liquid phases migration in the paste materials. The differential model of the forming processes of FGM was established by using the method of system identification. The variance analysis methods were used to estimate the order of the system model. The parameters were identified by recursive least squares methods to obtain FGM molding control model. And the design of adaptive controllers were finished to achieve the FGM molding processes for real-time control. The validity of the control model and the effectiveness of the control method were verified by experiments.

Key words: functionally gradient material(FGM), freeze-form extrusion fabrication (FEF), system identification, adaptive control

中图分类号:

TH145.9

马维东；李淑娟；杨磊鹏；王馨翊；谷中豪. 功能梯度材料的低温挤压成形过程建模与实验研究[J]. 中国机械工程.

MA Weidong；LI Shujian；YANG Leipeng；WANG Xinyi；GU Zhonghao. Modeling and Experimental Study on Freeze-form Extrusion Fabrication of FGMs[J]. China Mechanical Engineering.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: http://www.cmemo.org.cn/CN/

http://www.cmemo.org.cn/CN/Y2019/V30/I13/1600

参考文献

[1]刘华炜，刘学武，张广文.功能梯度材料制备工艺及研究进展[J].机械设计与制造,2012（4）:265-267
LIU Huawei ,LIU Xuewu ,ZHANG Guangwen, Research Progress and Preparing Technology of Functionally Graded Material[J]. Machinery Design & Manufacture， 2012（4）:265-267.
[2]马涛.赵忠民,刘良祥,等.功能梯度材料的究进展及应用前景[J]. 化工科技,2012,20(1):71-75.
MA Tao，ZHAO Zhongmin，LIU Liangxiang，et al.The Research Development and Future Application of Functionally Gradient Materials[J].Science & Technology in Chemical Industry， 2012,20(1):71-75.
[3]BEAMAN J J, BARLOW J W, BOURELL D L, et al. Solid Freeform Fabrication: a New Direction in Manufacturing[M]. Amsterdam ：Kluwer Academic Publishers, 1997.
[4]闫存富, 李淑娟, 杨磊鹏,等. 陶瓷零件低温挤压自由成形工艺挤压过程及液相迁移[J]. 中国机械工程, 2016, 27(16):2242-2248.
YAN Cunfu,LI Shujuan,YANG Leipeng,et al.Liquid Phase Migration and Freeze-form Extrusion Fabrication of Aqueous Cermic Paste[J]. China Mechanical Engineering, 2016, 27(16):2242-2248.
[5]MASON M S, HUANG T S, LANDERS R G, et al. Freeform Extrusion of High Solids Loading Ceramic Slurries, Part I: Extrusion Process Modeling[C]∥Seventeenth Annual Solid Freeform Fabrication Symposium Rolla. Kansas:University of Missouri, 2006:316-328.
[6]MASON M S, HUANG T, LANDERS R G, et al. Aqueous-based Extrusion of High Solids Loading Ceramic Pastes: Process Modeling and Control[J]. Journal of Materials Processing Technology，2009, 209(6):2946-2957.
[7]BRYANT F D, SUI G, LEU M C. A Study on Effects of Process Parameters in Rapid Freeze Prototyping[J]. Rapid Prototyping Journal, 2010, 9(1): 19-23
[8]SUI G, LEU M C. Thermal Analysis of Ice Walls Built by Rapid Freeze Prototyping[J]. Journal of Manufacturing Science and Engineering, 2008, 125(4): 824-834
[9]MASON M S, HUANG T, LANDERS R G, et al. Freeform Extrusion of High Solids Loading Ceramic Slurries. Part 1:Extrusion Process Modeling[C]∥Seventeenth Annual Solid Freeform Fabrication Symposium. Austin, 2006:316-328.
[10]李淑娟, 包惠同, 张恒. 三维陶瓷零件低温沉积过程挤压力建模及自适应控制[J]. 机械科学与技术, 2016(2):253-259.
LI Shujuan，BAO Huitong，ZHANG Heng. Modeling for Extrusion Force and Adaptive Control in the Freeze, Deposition Process of Three Dimensional Ceramic Components[J]. Mechanical Science and Technology for Aerospace Engineering, 2016(2):253-259.
[11]郑华滨. 陶瓷膏体挤出装置和挤出工艺研究[D]. 兰州：兰州理工大学, 2011.
ZHENG Huabin, Study on Extrusion Device and Extrusion Technology of Ceramic Paste[D]. Lanzhou ：Lanzhou University of Technology,2011.
[12]焦盼德, 李淑娟, 杨磊鹏,等. 功能梯度材料快速成形过程建模与控制[J]. 中国机械工程, 2017, 28(6):733-738.
JIAO Pande,Li Shujuan,YANG Leipeng et al. Modeling and Control of Rapid Deposition for Functionally Gradient Material Components[J]. China Mechanical Engineering, 2017, 28(6): 733-738.
[13]DEUSER B K, TANG L, LANDERS R G, et al. Hybrid Extrusion Force-velocity Control Using Freeze-form Extrusion Fabrication for Functionally Graded Material Parts[J]. Journal of Manufacturing Science & Engineering, 2013, 135(4):041015.
[14]刘洪军, 刘佳, 郑华滨,等. 工艺参数对固体自由成形工艺中陶瓷膏体挤出过程的影响[J]. 制造技术与机床, 2013(3):83-88.
LIU Hongjun，LIU Jia，ZHENG Huabin，et al. Effect of Parameters on Extrusion Process of Ceramic Paste in Solid Free Form Fabrication[J]. Manufacturing Technology & Machine Tool, 2013(3):83-88.
[15]BOUCHONMEUNIER B, YAGER R R, ZADEH L A. Uncertainty in Intelligent and Information Systems[J]. Archives Dophtalmologie et Revue Générale Dophtalmologie, 2007, 33(11):304.
[16]方崇智, 萧德云. 过程辨识[M].北京：清华大学出版社, 1988.
FANG Chongzhi，XIAO Deyun．Process Identification [M]．Beijing: Tsinghua University Press，1988.
[17]韩曾晋. 自适应控制 [M]. 北京：清华大学出版社, 2014.
HAN Cengjin． Adaptive Control [J]． Beijing: Tsinghua University Press，2014.