不同惯量飞轮对脉冲机组轴系扭振性能影响研究

Torsional Vibration Characteristic of Pulse Set with Different Inertia Flywheel

建立了三组不同惯量飞轮下脉冲机组轴系的当量系统模型,应用轴系扭转振动计算软件,分别对该三种方案下脉冲机组轴系自由振动和强迫振动进行了计算研究。分析了不同惯量飞轮对轴系固有频率、柴油机曲轴扭振应力、发电机转子电角、发电机转子扭矩、弹性联轴器扭矩的影响,根据分析结果,提出了合理的机组运行方案。并利用扭振测试分析系统,校核了其中一组惯量飞轮下脉冲机组的扭振计算结果,证明了理论计算结果的正确性。

The equal system models of pulse set shafting with three different inertial flywheels were estab- lished. Using torsion vibration calculation software for shafting, free vibration and force vibration for pulse set shafting were calculated with three different inertial flywheels. Effect of different inertial flywheels on inherent frequency, torsional vibration stresss for crankshaft, electric angle for rotor, moment for flexible coupling were studied. According to the analysis results, the reasonable running scheme was presented. Using torsion vibration measurement and analysis system, one group of torsion vibration Calculation of pulse set with inertia flywheel results were checked, which proved the correctness of theory calculation results.