Acta Aeronautica et Astronautica Sinica ›› 2026, Vol. 47 ›› Issue (15): 632797.doi: 10.7527/S1000-6893.2025.32797
• Special Topic: Aeroengine Intelligent Control and Health Management • Previous Articles
Received:2025-09-17
Revised:2025-09-29
Accepted:2025-11-10
Online:2025-11-14
Published:2025-11-13
Contact:
Xiaofeng LIU
E-mail:liuxf@buaa.edu.cn
Supported by:CLC Number:
Zhaolong BAI, Xiaofeng LIU. An improved high-to-low method for component characteristics modification towards curved surface smoothness[J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(15): 632797.
Table 3
Relative error of target parameters after preliminary modification
| 工况点 | nL | nH | Pt3 | Pt45 | Tt5 | Pt6 | Tt6 | F |
|---|---|---|---|---|---|---|---|---|
| 1 | NAN | NAN | NAN | NAN | NAN | NAN | NAN | NAN |
| 2 | 3.369 | 0.167 | 1.660 | 1.648 | 1.989 | 2.798 | 2.360 | 4.136 |
| 3 | NAN | NAN | NAN | NAN | NAN | NAN | NAN | NAN |
| 4 | NAN | NAN | NAN | NAN | NAN | NAN | NAN | NAN |
| 5 | 1.748 | 0.206 | 1.590 | 1.598 | 1.887 | 2.435 | 2.133 | 3.041 |
| 6 | 0.266 | 0.269 | 0.626 | 0.660 | 0.723 | 0.771 | 0.700 | 0.833 |
| 7 | 2.116 | 0.452 | 1.190 | 1.185 | 1.350 | 1.752 | 1.577 | 1.663 |
| 8 | 10.221 | 0.280 | 2.250 | 2.359 | 2.873 | 4.475 | 3.557 | 2.443 |
| 9(设计点) | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
Table 6
Optimized results of correction coefficients by PSO algorithm
| 工况点 | CW,fan | Cη,fan | CW,hpc | Cη,hpc | CW,hpt | Cη,hpt | CW,lpt | Cη,lpt |
|---|---|---|---|---|---|---|---|---|
| 1 | 0.725 | 1.336 | 0.876 | 1.078 | 1.001 | 0.996 | 1.017 | 1.035 |
| 2 | 0.988 | 1.046 | 0.980 | 1.005 | 1.000 | 1.000 | 1.000 | 1.020 |
| 3 | 0.748 | 1.334 | 0.855 | 1.088 | 1.002 | 0.994 | 1.007 | 1.053 |
| 4 | 0.795 | 1.160 | 0.943 | 1.030 | 1.000 | 0.998 | 1.007 | 1.036 |
| 5 | 1.014 | 1.030 | 0.991 | 1.003 | 1.000 | 1.000 | 1.000 | 1.017 |
| 6 | 1.011 | 1.006 | 1.002 | 1.001 | 1.000 | 1.000 | 1.000 | 1.006 |
| 7 | 0.935 | 0.999 | 1.005 | 0.999 | 1.000 | 1.001 | 1.000 | 0.984 |
| 8 | 0.907 | 1.061 | 0.973 | 1.005 | 1.000 | 0.998 | 1.005 | 1.024 |
| 9(设计点) | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 |
Table 7
Relative error of target parameters after secondary modification by improved high-to-low method
| 工况点 | nL | nH | Pt3 | Pt45 | Tt5 | Pt6 | Tt6 | F |
|---|---|---|---|---|---|---|---|---|
| 1 | 0.122 | 0.016 | 0.046 | 0.032 | 0.073 | 0.034 | 0.052 | 0.199 |
| 2 | 0.002 | 0.115 | 0.059 | 0.000 | 0.031 | 0.095 | 0.082 | 0.141 |
| 3 | 0.131 | 0.167 | 0.088 | 0.170 | 0.011 | 0.114 | 0.053 | 0.275 |
| 4 | 0.079 | 0.081 | 0.144 | 0.260 | 0.107 | 0.067 | 0.040 | 0.082 |
| 5 | 0.021 | 0.033 | 0.002 | 0.009 | 0.011 | 0.023 | 0.020 | 0.029 |
| 6 | 0.027 | 0.020 | 0.001 | 0.006 | 0.004 | 0.010 | 0.009 | 0.011 |
| 7 | 0.042 | 0.053 | 0.002 | 0.021 | 0.004 | 0.008 | 0.008 | 0.008 |
| 8 | 0.021 | 0.003 | 0.135 | 0.227 | 0.076 | 0.032 | 0.021 | 0.020 |
| 9(设计点) | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
Table 8
Relative errors of target parameters after modification by traditional high-to-low method
| 工况点 | nL | nH | Pt3 | Pt45 | Tt5 | Pt6 | Tt6 | F |
|---|---|---|---|---|---|---|---|---|
| 1 | 0.122 | 0.016 | 0.046 | 0.032 | 0.073 | 0.034 | 0.052 | 0.198 |
| 2 | 0.002 | 0.115 | 0.059 | 0.001 | 0.032 | 0.095 | 0.082 | 0.141 |
| 3 | 0.171 | 0.419 | 0.448 | 0.707 | 0.418 | 0.950 | 0.419 | 2.303 |
| 4 | 0.078 | 0.077 | 0.139 | 0.254 | 0.111 | 0.065 | 0.039 | 0.080 |
| 5 | 0.052 | 0.092 | 0.162 | 0.126 | 0.142 | 0.069 | 0.055 | 0.086 |
| 6 | 0.050 | 0.044 | 0.039 | 0.037 | 0.037 | 0.007 | 0.005 | 0.007 |
| 7 | 0.041 | 0.053 | 0.002 | 0.021 | 0.005 | 0.009 | 0.008 | 0.008 |
| 8 | 0.017 | 0.065 | 0.299 | 0.220 | 0.231 | 0.130 | 0.086 | 0.076 |
| 9(设计点) | 0.000 | 0.000 | 0.000 | 0.001 | 0.000 | 0.000 | 0.000 | 0.000 |
Table 10
Relative errors of target parameters after modification by fitting quadratic function transformation method
| 工况点 | nL | nH | Pt3 | Pt45 | Tt5 | Pt6 | Tt6 | F |
|---|---|---|---|---|---|---|---|---|
| 1 | 0.794 | 2.981 | 1.600 | 0.218 | 0.839 | 0.303 | 0.455 | 1.748 |
| 2 | 1.088 | 0.241 | 0.446 | 0.162 | 0.468 | 0.566 | 0.461 | 0.837 |
| 3 | 0.294 | 2.865 | 1.384 | 0.970 | 1.347 | 0.755 | 0.328 | 1.821 |
| 4 | 3.279 | 0.482 | 0.184 | 0.452 | 0.116 | 0.684 | 0.415 | 0.826 |
| 5 | 1.463 | 0.179 | 0.700 | 0.404 | 0.681 | 0.811 | 0.687 | 1.013 |
| 6 | 0.342 | 0.216 | 0.517 | 0.224 | 0.441 | 0.494 | 0.446 | 0.534 |
| 7 | 3.636 | 0.777 | 0.504 | 0.843 | 0.701 | 0.842 | 0.744 | 0.806 |
| 8 | 0.075 | 0.031 | 0.787 | 0.829 | 0.362 | 0.730 | 0.493 | 0.427 |
| 9(设计点) | 0.218 | 0.178 | 0.270 | 0.015 | 0.203 | 0.225 | 0.215 | 0.283 |
Table 11
Accuracy evaluation indicators after modification by various methods
| 评价指标 | 修正方法 | nL | nH | Pt3 | Pt45 | Tt5 | Pt6 | Tt6 | F |
|---|---|---|---|---|---|---|---|---|---|
| Emean | 二次函数变换法 | 1.243 | 0.883 | 0.710 | 0.458 | 0.573 | 0.601 | 0.472 | 0.922 |
| 传统下赶法 | 0.059 | 0.098 | 0.133 | 0.155 | 0.117 | 0.151 | 0.083 | 0.322 | |
| 改进下赶法 | 0.049 | 0.054 | 0.053 | 0.080 | 0.035 | 0.043 | 0.032 | 0.085 | |
| Emax | 二次函数变换法 | 3.636 | 2.981 | 1.600 | 0.970 | 1.347 | 0.842 | 0.744 | 1.821 |
| 传统下赶法 | 0.171 | 0.419 | 0.448 | 0.707 | 0.418 | 0.950 | 0.419 | 2.303 | |
| 改进下赶法 | 0.131 | 0.167 | 0.144 | 0.260 | 0.107 | 0.114 | 0.082 | 0.275 |
Table 12
Smoothness evaluation indicators after modification by various methods
| 评价指标 | 修正方法 | Wfan | ηfan | Whpc | ηhpc | Whpt | ηhpt | Wlpt | ηlpt |
|---|---|---|---|---|---|---|---|---|---|
| RMSSD | 二次函数变换法 | 0.007 | 0.194 | 0.002 | 0.422 | 0.000 | 0.052 | 0.001 | 0.035 |
| 传统下赶法 | 0.827 | 1.569 | 0.045 | 1.618 | 0.000 | 0.703 | 0.003 | 0.523 | |
| 改进下赶法 | 0.034 | 0.295 | 0.005 | 0.405 | 0.001 | 0.526 | 0.003 | 0.259 | |
| L | 二次函数变换法 | 0.106 | 0.752 | 0.021 | 0.902 | 0.004 | 0.438 | 0.003 | 0.056 |
| 传统下赶法 | 1.927 | 2.944 | 0.091 | 2.133 | 0.000 | 0.778 | 0.005 | 1.361 | |
| 改进下赶法 | 0.156 | 0.482 | 0.030 | 1.043 | 0.001 | 0.887 | 0.006 | 0.929 |
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