| 基于样条曲线的压气机特性内插算法研究 |
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| 引用本文： | 党相懿,杨文广,蒋东翔.基于样条曲线的压气机特性内插算法研究[J].航空发动机,2015,41(1):22-26. |
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| 作者姓名： | 党相懿 杨文广 蒋东翔 |
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| 作者单位： | 1. 清华大学热能工程系,北京100084;中航工业航空动力控制系统研究所,江苏无锡214063
2. 清华大学热能工程系,北京,100084 |
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| 摘 要： | 针对压气机特性曲线中未知转速数据难以精确计算问题,提出了基于样条曲线的内插算法。在分析压气机性能曲线特点基础上,通过制作压比/效率-流量、流量-转速2组辅助线,并使用样条曲线对其进行拟合,基于拟合结果计算测试转速下的特性数据,进而完成了对某型压气机压比/效率特性的内插计算。结果表明:基于样条曲线的内插算法比RBF神经网络算法准确性更高,并具有良好的工程应用价值。
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| 关 键 词： | 压气机 性能 样条曲线 内插算法 仿真计算 RBF网络 燃气轮机 热力学模型 |
Interpolation Algorithm of Compressor Characteristics Based on Spline |
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| Authors: | DANG Xiang-yi YANG Wen-guang JIANG Dong-xiang |
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| Institution: | 1. Department of Thermal Engineering, Tsinghua University, Beijing 100084, China,2. AVIC Aeroengine Control Institute ,Wuxi Jiangsu 214063, China |
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| Abstract: | Consideringtheunknownrotatingspeed data ofcompressorcharacteristicswerenoteasytocalculate accurately, a interpolation algorithmbased on spline was presented . The spline curves were used to fit the auxiliary lines of compression ratio/efficiency to mass flow and mass flow to rotating speed based on analysis of the compressor characteristics. The characteristics data were calculated at test speed based on the spline-fitting results. The interpolation algorithm of pressure ratio/ efficiency characteristics of a compressor were completed. The results show that the algorithm is more accurate,and has better engineering application value than an algorithm based on RBF network. |
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| Keywords: | compressor performance spline interpolation algorithm simulation calculation RBF network gas turbine thermodynamic model |
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