整体自阻电加热渐进成形温度控制系统
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摘要
针对整体自阻电加热渐进成形加工区的温度控制问题,以TC4钛合金为实验材料并基于整体自阻电加热渐进成形的工艺特点,采用有限元模拟方法设计了使渐进成形加工区温度梯度较小的加热电极。同时,基于模糊自适应PID控制原理,设计了相应的模糊PID控制器,搭建了S3C2440嵌入式平台,并在此平台上开发了整体自阻电加热渐进成形温度控制系统以精确控制成形区的温度。最后,通过阶跃响应法对温控系统的数学模型进行了辨识,并采用仿真与实验验证相结合的方式验证了该温度控制系统的科学性。
For the problem of temperature control in integral self-resistive electric heating incremental forming process zone,based on experimental material TC4 titanium alloy and process characteristics of integral self-resistive electric heating incremental forming process,a heating electrode with smaller temperature gradient in incremental forming process zone was designed by finite element simulation. At the same time,based on the principle of fuzzy adaptive PID control,the corresponding fuzzy PID controller was designed,and embedded platform S3 C2440 was built. On this platform,the temperature control system of integral self-resistive electric heating incremental forming was developed to accurately control the temperature of the forming zone. Finally,the mathematical model of the temperature control system was identified by step response method,and the scientific nature of the temperature control system was verified by the combination of simulation and experiment.
For the problem of temperature control in integral self-resistive electric heating incremental forming process zone,based on experimental material TC4 titanium alloy and process characteristics of integral self-resistive electric heating incremental forming process,a heating electrode with smaller temperature gradient in incremental forming process zone was designed by finite element simulation. At the same time,based on the principle of fuzzy adaptive PID control,the corresponding fuzzy PID controller was designed,and embedded platform S3 C2440 was built. On this platform,the temperature control system of integral self-resistive electric heating incremental forming was developed to accurately control the temperature of the forming zone. Finally,the mathematical model of the temperature control system was identified by step response method,and the scientific nature of the temperature control system was verified by the combination of simulation and experiment.
引文
[1] Hamilton K,Jeswiet J. Single point incremental forming at highfeed rates and rotational speeds:Surface and structural conse-quences[J]. CIRP Annals-Manufacturing Technology,2010,59(1):311-314.
[2]莫健华,韩飞.金属板材数字化渐进成形技术研究现状[J].中国机械工程,2008,19(4):491-497.Mo J H,Han F. State of the arts and latest research on incremen-tal sheet NC forming technology[J]. China Mechanical Engi-neering,2008,19(4):491-497.
[3] Fan G Q,Gao L,Hussain G,et al. Electric hot incremental form-ing:A novel technique[J]. International Journal of MachineTools and Manufacture,2008,48(15):1688-1692.
[4] Le V S,Nam N T. Hot incremental forming of magnesium and alu-minum alloy sheets by using direct heating system[J]. Proceed-ings of the Institution of Mechanical Engineers Part B Journal ofEngineering Manufacture,2013,227(8):1099-1110.
[5]张其龙.局部自阻电加热数控渐进成形翻边技术研究[D].南京:南京航空航天大学,2013.Zhang Q L. Research on NC Incremental Forming Flanging Tech-nology with Local Self-resistance Electric Heating[D]. Nanjing:Nanjing University of Aeronautics and Astronautics,2013.
[6]范国强. TC4板材局部自阻电加热数控渐进成形的研究[D].南京:南京航空航天大学机电学院,2010.Fan G Q. Research on NC Incremental Forming of TC4 Sheet Metalby Local Self-resistance Electric Heating[D]. Nanjing:NanjingUniversity of Aeronautics and Astronautics,2010.
[7]刘金琨.先进PID控制MATLAB仿真[M].北京:电子工业出版社,2011.Liu J K. MATLAB Simulation of Advanced PID Control[M].Beijing:Electronic Industry Press,2011.
[8]石辛民,郝整清.模糊控制及其MATLAB仿真[M].北京:清华大学出版社,2008.Shi X M,Hao Z Q. Fuzzy Control and Its MATLAB Simulation[M]. Beijing:Tsinghua University Press,2008.
[9]郝振兴.基于嵌入式的高温真三轴压力机温度控制系统研究[D].太原:太原理工大学,2017.Hao Z X. Research on Temperature Control System of High Tem-perature True Triaxial Press Based on Embedded System[D].Taiyuan:Taiyuan University of Technology,2017.
[10]吴振顺,姚建均,岳东海.模糊自整定PID控制器的设计及其应用[J].哈尔滨工业大学学报,2004,36(11):1578-1580.Wu Z S,Yao J J,Yue D H. A self-tuning fuzy PID controller andits application[J]. Journal of Harbin Institute of Technology,2004,36(11):1578-1580.
[11]郭利进,井海明,宋英利,等.基于模糊自适应PID的回转炉温度控制系统[J].化工自动化及仪表,2016,43(11):1125-1128.Guo L J,Jing H M,Song Y L,et al. Rotary furnace control sys-tem based on fuzzy adaptive PID[J]. Control&Instruments inChemical Industry,2016,43(11):1125-1128.
[12]刘大军.基于模糊PID参数自整定的细胞培养箱温度控制研究与实现[D].宁波:宁波大学,2017.Liu D J. Research and Implementation of Temperature Control ofCell Culture Box Based on Fuzzy PID Self-tuning Parameters[D].Ningbo:Ningbo University,2017.
[13] Ambrogio G,Filice L,Gagliardi F. Formability of lightweight al-loys by hot incremental sheet forming[J]. Materials and Design,2012,34:501-508.
[2]莫健华,韩飞.金属板材数字化渐进成形技术研究现状[J].中国机械工程,2008,19(4):491-497.Mo J H,Han F. State of the arts and latest research on incremen-tal sheet NC forming technology[J]. China Mechanical Engi-neering,2008,19(4):491-497.
[3] Fan G Q,Gao L,Hussain G,et al. Electric hot incremental form-ing:A novel technique[J]. International Journal of MachineTools and Manufacture,2008,48(15):1688-1692.
[4] Le V S,Nam N T. Hot incremental forming of magnesium and alu-minum alloy sheets by using direct heating system[J]. Proceed-ings of the Institution of Mechanical Engineers Part B Journal ofEngineering Manufacture,2013,227(8):1099-1110.
[5]张其龙.局部自阻电加热数控渐进成形翻边技术研究[D].南京:南京航空航天大学,2013.Zhang Q L. Research on NC Incremental Forming Flanging Tech-nology with Local Self-resistance Electric Heating[D]. Nanjing:Nanjing University of Aeronautics and Astronautics,2013.
[6]范国强. TC4板材局部自阻电加热数控渐进成形的研究[D].南京:南京航空航天大学机电学院,2010.Fan G Q. Research on NC Incremental Forming of TC4 Sheet Metalby Local Self-resistance Electric Heating[D]. Nanjing:NanjingUniversity of Aeronautics and Astronautics,2010.
[7]刘金琨.先进PID控制MATLAB仿真[M].北京:电子工业出版社,2011.Liu J K. MATLAB Simulation of Advanced PID Control[M].Beijing:Electronic Industry Press,2011.
[8]石辛民,郝整清.模糊控制及其MATLAB仿真[M].北京:清华大学出版社,2008.Shi X M,Hao Z Q. Fuzzy Control and Its MATLAB Simulation[M]. Beijing:Tsinghua University Press,2008.
[9]郝振兴.基于嵌入式的高温真三轴压力机温度控制系统研究[D].太原:太原理工大学,2017.Hao Z X. Research on Temperature Control System of High Tem-perature True Triaxial Press Based on Embedded System[D].Taiyuan:Taiyuan University of Technology,2017.
[10]吴振顺,姚建均,岳东海.模糊自整定PID控制器的设计及其应用[J].哈尔滨工业大学学报,2004,36(11):1578-1580.Wu Z S,Yao J J,Yue D H. A self-tuning fuzy PID controller andits application[J]. Journal of Harbin Institute of Technology,2004,36(11):1578-1580.
[11]郭利进,井海明,宋英利,等.基于模糊自适应PID的回转炉温度控制系统[J].化工自动化及仪表,2016,43(11):1125-1128.Guo L J,Jing H M,Song Y L,et al. Rotary furnace control sys-tem based on fuzzy adaptive PID[J]. Control&Instruments inChemical Industry,2016,43(11):1125-1128.
[12]刘大军.基于模糊PID参数自整定的细胞培养箱温度控制研究与实现[D].宁波:宁波大学,2017.Liu D J. Research and Implementation of Temperature Control ofCell Culture Box Based on Fuzzy PID Self-tuning Parameters[D].Ningbo:Ningbo University,2017.
[13] Ambrogio G,Filice L,Gagliardi F. Formability of lightweight al-loys by hot incremental sheet forming[J]. Materials and Design,2012,34:501-508.