摘要
温控系统是3D生物打印装置控制系统的重要组成部分,它关系到血管组织快速成形的质量与活性。3D生物打印喷头的温控系统采用半导体直接热传导方式,利用ANSYS有限元软件的热分析功能对打印喷头的模型进行热传导分析,再通过基于BECKHOFF温度PID算法的恒温控制箱和CX2030-0123型控制器搭建打印喷头的实验验证平台。实验结果表明,该方法能够大幅提升3D生物打印喷头的控温精度和鲁棒性,能够有效地抑制或消弱非线性系统存在的温度波动与超调。
The temperature control system is an important part of the control system 3D biological printing devices,which is related to the quality and activity of rapid formation of vascular tissue.The temperature control system of 3D biological printing nozzle adopts semiconductor direct heat conduction mode,and uses the heat analysis function of ANSYS finite element software to analyze the heat conduction of the model of printing nozzle.Then the experimental verification platform of printing nozzle is built by constant temperature control box based on BECKHOFF temperature PID algorithm and CX2030-0123 controller.The experimental results show that this method can greatly improve the temperature control accuracy and robustness of 3D biological printing head,and can effectively suppress or weaken the temperature fluctuation and overshoot of nonlinear system.
出处
《科技创新与应用》
2021年第28期28-31,共4页
Technology Innovation and Application
基金
国家自然科学基金项目(编号:51706077)
国家“863”计划项目(编号:2015AA020305-1)
湖北理工学院科研重点项目(编号:20xjz03A)。
