新型滚筒式传送带的二次型最优控制

Quadratic Optimal Control of New Type Roller Conveyor Belt

滚筒式传送带在物料搬运机械化和自动化工厂中已经成了不可缺少的部分,为了在不增加驱动功率的基础上实现滚筒式传送带的平稳运行,提出了一种改进的系统设计方案。首先,引入液粘离合器,利用粘性油膜的柔性效应实现滚筒的软起动。然后,利用滚筒与传送带间的摩擦力,实现传送带的平稳启动和运行。在考虑液粘离合器摩擦损失的基础上,设计了基于线性二次型调节器的最有状态反馈控制率,优化了液粘离合器的接合过程,获得了良好的驱动性能。最后,对提出的新型滚轮式传送带系统进行了数值仿真,验证了该系统的有效性.

The roller conveyor belt has been an indispensable part in the material handling mechanization and automation factory.In order to realize the smooth operation of the roller conveyor belt without increasing the driving power,an improved system design scheme is proposed.First,a hydro-viscous clutch is introduced to realize the soft start of the drum by using the flexible effect of the viscous oil film.Then,the friction force between the roller and the conveyor belt is used to realize the smooth start and operation of the conveyor belt.Considering the friction loss of the hydro-viscous clutch,the state feedback control rate based on the linear quadratic regulator is designed.The engagement process of the hydro-viscous clutch is optimized,and the good driving performance is obtained.Finally,the effectiveness of the system is verified by numerical simulation.