舞台吊杆七段式速度控制策略探讨

舞台吊杆在演出过程中,经常需要快速起停,因此,他运行的平稳性和定位的准确性将直接影响着他的安全与使用。目前的吊杆提升大都采用三段式速度控制模型,但是采用这样的速度给定,钢丝绳上的张力变化剧烈,从而会引起钢丝绳的摆动,对提升系统会造成有害的冲击,影响整个提升设备的使用寿命。针对上述问题,给出了舞台吊杆七段式速度控制模型,探讨了不同阶段的控制策略,提出了不同工况下,安全运行与控制参数之间的计算原则与方法,为实际的七段式速度模型和软件编程提供了理论依据。

Discussion on Seven - phase Control Strategies of Fly Bars

When performance is going on,quick start and stop of the flybars are needed,so their stability of move and accuracy of orientation will directly affect the application.At present,speed control mode of threephase is mostly applied on flybars.But if we use this mode,there will be a bad impact on hoisting system which will influence the span of the equipments because a sudden speed of flybars will alter the strain of steel wires hugely and lead to the swing of them.Aiming at this problem,the paper proposes a speed control mode of sevenphase fly bars.It also discusses control strategies at different moments,and puts forward calculation principles and methods between safe course and controls parameter in different status.It supplies a theoretic basis for actual sevenphase speed control mode,and for its software programming as well.