摘要
带式输送机在启动过程中,伴随着巨大的张力波动,影响系统正常运行,因此有效地对输送机张紧系统进行控制显得尤为重要。针对输送机液压张紧系统的非线性问题,建立液压伺服系统的状态方程,基于Lyapunov稳定性理论推导了力跟踪自适应控制律,在MATLAB/Simulink中搭建张紧系统的仿真模型,并制定其控制策略;针对输送带张力波动问题,提出采用头、中、尾三点张紧的方式,在AMESim中搭建输送带模型,通过AMESim与MATLAB/Simulink联合仿真,验证了控制策略具有较好的力追踪性能和稳态精度,有效地降低了输送带的张力波动值。
The starting process of belt conveyor is always accompanied by huge tension fluctuations,which affects the normal operation of the system. Therefore,it is significant to control the tensioning system of the conveyor. Considering the nonlinear problem of hydraulic tensioning system,the state equation of hydraulic servo system is established,the force tracking adaptive control law is derived based on Lyapunov stability theory,and the model of tensioning system and control strategy are built in MATLAB/Simulink. In view of reducing the tension fluctuation of the conveyor belt,it is proposed that the three-point,head,medium and tail,tensioning method. The conveyor belt model is built in AMESim. By simulation combining AMESim with MATLAB/Simulink, the control strategy has great force tracking performance and steady-state accuracy, which significantly reduces the tension fluctuation of the conveyor belt.
作者
牛世杰
熊晓燕
NIU Shi-jie;XIONG Xiao-yan(School of Mechanical and Transportation Engineering,Taiyuan University of Technology,Taiyuan 030024,China)
出处
《煤炭工程》
北大核心
2020年第5期172-177,共6页
Coal Engineering
基金
山西省优秀人才科技创新项目(201705D211009)。
