化工管路系统的耦合振动主动控制研究

Active control of coupled vibration of chemical piping system

采用特征线法获得阀门启闭动作产生的水击耦合响应瞬态规律,对化工管路系统进行了主动控制研究;通过非线性优化得到阀的优化启闭规律,为了能在工程上实现,对优化启闭规律采用自适应神经模糊推理方法处理,压力幅值与最优规律的最大差值为8 kPa;利用阀的ANFIS启闭规律,测试管路末端的压力下降了13.04%之多,验证了阀的启闭动作的优化能有效地降低压力峰值和对于水击振动的主动控制有效性。

The characteristic line method was used to solve the water hammer coupled transient vibration response of chemical piping system due to the open-shut operation of valve. The active control of coupled vibration of chemical piping system was studied by using nonlinear optimization algorithm to obtain the theoretical optimal curve of valve open-shut operation. For engineering use, an optimization approach, named ANFIS approach was further developed. The maximal difference between the water hammer pressure calculated according to the theoretical optimal curve and to the ANFIS approach is 8 kPa. Experiments show that the use of ANFIS can reduce the pressure amplitude at the end section of piping system by as much as 13.04 percent.