某大型舰船主汽轮机的建模与动态仿真

Modeling and Dynamic-state Simulation of a Large-sized Warship-purposed Main Steam Turbine

以某大型舰船主汽轮机为研究对象,充分考虑了舰船主汽轮机的结构特性,针对舰船主汽轮机特性建立集总参数动态仿真数学模型,在SimuWorks热力系统平台上,搭建相应仿真模型。对主汽轮机进行稳态工况和加速、减速及倒车过程的全工况动态仿真。仿真结果表明,模型具有较高精度,高速工况下偏差在2%以内,动态趋势合理,能准确反映出部件实际工作状态。该仿真模型可以应用于舰船动力系统的仿真。

With a large-sized warship-purposed main steam turbine serving as the object of study and its structural characteristics being fully considered,a lumped parameter dynamic-state simulation mathematic model was established for the characteristics of the steam turbine.On the Simu Works thermal system platform,built was a corresponding simulation model.A dynamic state simulation was performed of the steam turbine in various operating conditions including the steady state operating conditions,acceleration,deceleration and astern-going processes.The simulation results show that the model in question enjoys a relatively high precision and its dynamic tendency is rational,capable of reflecting the real working conditions of the parts and components.The model under discussion can also be used for simulating warship-purposed power systems.