燃气轮机快速并车过程冲击及响应特性试验研究

Experimental Research on Impact and Response Characteristics in Rapid Engaging Process of Gas Turbine

关键词:  推进轴系  燃气轮机  快速并车  扭矩冲击  动态响应  试验研究

Key words:  Propulsion shafting  Gas turbine  Rapid engaging  Torque impact  Dynamic response  Experimental research

摘要:

为研究燃气轮机快速并车过程中的冲击及响应特性，搭建并车试验台架，采用试验方法对并车参数和轴系部位对轴系动态响应幅值的影响开展研究。试验发现：快速并车过程中SSS离合器（同步自动换挡离合器）啮合瞬间会产生扭矩冲击，轴系因此产生明显的扭矩响应，并且相同的并车参数下扭矩响应的幅值会在一定范围内波动；降低并入机的设定扭矩或延长加载时间均可明显降低扭矩冲击和响应幅值；扭矩冲击对轴系不同部位产生的响应也不同，越靠近SSS离合器的位置，扭矩响应越大，且经过减速齿轮后响应明显降低。结果表明：所搭建的试验台架能够反映燃气轮机快速并车过程中的冲击及响应特性，可为燃燃联合动力装置并车策略和安全性设计提供参考。

Abstract:

In order to study the impact and response characteristics during rapid engagement of gas turbine， an experiment plant is built. The effects of engaging parameters and shafting positions on the dynamic response amplitude are studied experimentally. It is found that torque impact takes place during the mesh of SSS clutch （synchro-self-shifting clutch） and significant torque response of shafting is produced. The amplitude of the torque response will fluctuate within a certain range under the same engaging parameters. Reducing the torque setting value or prolonging the loading time of engaging engine can significantly lower the torque impact and the torque response. Also， the responses of the torque impact on different parts of the shafting are different. The closer to the SSS clutch， the greater the torque response could be， and the torque response is significantly reduced after passing the gearbox. The results show that the experiment plant can reflect the torque impact and response characteristics of the gas turbine during the rapid engaging process， and can provide a reference for the engaging strategy and safety design of the COGAG（combined gas turbine and gas turbine） plant.