MU Chun-yang1, LI Shi-zhong1, LI Hua2
（1. School of Mechatronics Engineering， North University of China， Taiyuan 030051， China;2. Inner Mongolia Longsheng Construction & Installation Co., Ltd., Baotou 014030, China）
Abstract： Because the normal operation of the engine is located near the equilibrium manifold,the method of equilibrium manifold nonlinear dynamic modeling is adopted for turbofan engine more than the local train modeling. The method studies the system characteristics near the equilibrium manifold. The modeling method can be realized through dynamic and static two-step, and for the specific parameter modeling steps and algorithm are given. The output of the test data is compared with the model output through numerical simulation,to check the model with an additional set of test data. The simulation results show that the model has reached the requirements of engineering accuracy.
Key words： equilibrium manifold; turbofan engine; modeling; simulation
CLD number： TK441Document code： A
Article ID： 1674-8042（2015）02-0180-05 doi： 10.3969/j.issn.1674-8042.2015.02.012
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基于平衡流形的涡扇发动机建模仿真
牟春阳1， 李世中1， 李华2
（1. 中北大学 机电工程学院，山西 太原 030051； 2. 内蒙古隆升建筑安装工程有限公司， 内蒙古 包头 014030）
摘要:考虑到发动机正常工作状态基本位于其平衡流形的附近， 因此采用平衡流形非线性动态建模方法对涡扇发动机慢车以上工况进行建模， 以便研究平衡流形附近系统特性。 该建模方法可通过动静两步法加以实现， 并针对具体参数给出了建模的步骤和算法。 最后通过数值仿真将试验数据的输出与模型的输出进行对比， 用另外一组试验数据对模型进行校核。 仿真结果表明， 该模型达到了工程精度要求。
关键词:平衡流形； 涡扇发动机； 建模； 仿真
引用格式：MU Chun-yang, LI Shi-zhong, LI Hua. Modeling and simulation of turbofan engine based on equilibrium manifold. Journal of Measurement Science and Instrumentation, 2015, 6(2)： 180-184. ［doi： 10.3969／j.issn.1674-8042.2015.02.012］
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