摘要
根据动（静）叶调节轴流风机静态性能曲线的特点，提出采用曲面拟会和插值两种数学方法建立其静态性能模型，并考虑仿真对模型易用性的要求，重点介绍静态模型建立的数学插值法。在插值型静态模型的基础上，依据风机的有关定律和原理，建立了轴流风机的动态实时仿真模型。该模型可以对运行中风，机的流量、全压等参数以及喘振故障发生的条件和现象进行实时仿真。工程实际应用表明：该模型易于使用，静态和动态变工况性能与原经验型仿真模型相比，能更好地反映实际风机的特性。
According to the static performance curve feature of the axial-flow fan with adjustable vanes, two mathematical methods, curve fit method and interpolation method, are put forward to set up the static performance model of the fan. The interpolation method is introduced emphatically because of its eastness for simulation use. Based on the interpolation-type static model, the realtime dynamic simulation model of the axial-flow fan is set up using the relevant laws and principles of funs. The flow rate and total pressure of the fan can be calculated, and the surge condition and phenomena can be simulated with this realtime dynamic simulation model. The engineering practice shows that the model is easy to use and can reflect the axial-flow fan's real static and dynamic performance better than the erstwhile purely experiential model.
出处
《华北电力大学学报（自然科学版）》
CAS
北大核心
2000年第3期11-16,共6页
Journal of North China Electric Power University：Natural Science Edition
