数控燃油计量装置联合建模方法研究

推进技术 ›› 2016, Vol. 37 ›› Issue (9): 1752-1758.

数控燃油计量装置联合建模方法研究

赵皓岑,王彬,叶志锋

南京航空航天大学能源与动力学院，江苏省航空动力系统重点实验室，江苏南京 210016,南京航空航天大学能源与动力学院，江苏省航空动力系统重点实验室，江苏南京 210016,南京航空航天大学能源与动力学院，江苏省航空动力系统重点实验室，江苏南京 210016

发布日期:2021-08-15
作者简介:赵皓岑，男，硕士生，研究领域为航空发动机控制系统。
基金资助:
江苏省研究生培养创新工程(SJLX_0141)；中央高校基本科研业务费专项资金资助。

Study on Co-Modeling Method for Digital

Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power System， Nanjing 210016，China,Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power System， Nanjing 210016，China and Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power System， Nanjing 210016，China

Published:2021-08-15

摘要/Abstract

摘要： 为了研究步进电机驱动的数控燃油计量装置建模方法和其各部件特性，采用AMESim/Matlab联合建模的方法，对液压组件和步进电机分别用AMESim和Matlab/Simulink建立了各自的模型，完成了联合仿真接口设计，实现了模型间的数据共享。在输入计量装置的参数后，通过仿真计算获得了各工作点燃油流量，并与该装置的试验数据对比研究。结果表明，在工作范围内联合模型仿真的燃油流量与试验值误差在6%以内，联合模型稳态精度高并可反映装置的实际动态性能。采用该模型可以较好地控制燃油流量和获得较为准确的燃油计量装置工作特性，能够在发动机控制系统设计阶段，用于对燃油计量装置部件结构以及其控制性能的优化设计。

关键词: 燃油计量装置；步进电机；AMESim/Matlab；联合建模；燃油流量

Abstract: In order to study the modeling method of the digital control FMU(fuel metering unit) driven by stepping motor and characteristics of all components of it，the AMESim/Matlab software platform was used to build a co-model. The hydraulic assembly model and the stepping motor model of this unit were established in AMESim and Matlab/Simulink，respectively. An interface was designed for data-sharing between these two models. Entering the parameters of a certain type of FMU，characteristics of all components and the metered flow rate at the working points can be obtained through simulation calculation，and the results are compared with the experimental data of the unit. Results show that an error no more than 6 percent metered fuel flow rate exits between the co-model and the experiments and indicate that the co-model has higher steady precision and can describe the actual dynamic properties of the unit. Using this co-model，the fuel flow rate can be controlled well and the characteristics of the FMU can be obtained accurately，and it can be used for optimization of component structure and the controlling function of the FMU in the stage of engine control system design.

Key words: Fuel metering unit；Stepping motor；AMESim/Matlab；Co-modeling；Fuel flow rate

赵皓岑,王彬,叶志锋. 数控燃油计量装置联合建模方法研究[J]. 推进技术, 2016, 37(9): 1752-1758.

ZHAO Hao-cen,WANG Bin,YE Zhi-feng. Study on Co-Modeling Method for Digital[J]. Journal of Propulsion Technology, 2016, 37(9): 1752-1758.

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