Acta Aeronautica et Astronautica Sinica ›› 2024, Vol. 45 ›› Issue (19): 630273.doi: 10.7527/S1000-6893.2024.30273
• Uncertainties in Aerothermodynamics of Aero-engine • Previous Articles
Zhendong GUO1, Haojie LI1, Liming SONG1(), Hualiang ZHANG2, Zhao YIN2
Received:
2024-02-01
Revised:
2024-02-21
Accepted:
2024-03-15
Online:
2024-03-28
Published:
2024-03-25
Contact:
Liming SONG
E-mail:songlm@mail.xjtu.edu.cn
Supported by:
CLC Number:
Zhendong GUO, Haojie LI, Liming SONG, Hualiang ZHANG, Zhao YIN. Robust optimization method based on adaptive sparse polynomial chaos[J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(19): 630273.
Table 2
Test results for uncertainty quantification
函数 | 方法 | 样本量N | 均值 | 方差 |
---|---|---|---|---|
Ishigami | 蒙特卡罗 | 107 | 3.500 4 | 13.845 6 |
传统回归法PC | 300 | 3.493 4 | 13.822 9 | |
ASPC | 70 | 3.499 9 | 13.847 3 | |
传统回归法PC相对蒙特卡罗的误差 | 0.188% | 0.160% | ||
ASPC相对蒙特卡罗的误差 | 0.002% | 0.017% | ||
O’Hagan | 蒙特卡罗 | 107 | 8.980 7 | 60.144 6 |
传统回归法PC | 1 000 | 8.982 7 | 60.182 7 | |
ASPC | 550 | 8.994 4 | 60.162 6 | |
传统回归法PC相对蒙特卡罗的误差 | 0.031% | 0.019% | ||
ASPC相对蒙特卡罗的误差 | 0.099% | 0.014% |
Table 4
Blade design parameters
序号 | 设计参数 | 说明 |
---|---|---|
1 | 前缘半径 | 进口圆半径 |
2 | 尾缘半径 | 出口圆半径 |
3 | 轴向弦长 | 轴向最大距离 |
4 | 圆心连线角 | 圆心连线与轴向夹角 |
5 | 进口几何角 | 进口方向与额线夹角 |
6 | 进口上楔角 | 吸力面前缘切线与进口方向夹角 |
7 | 进口下楔角 | 压力面前缘切线与进口方向夹角 |
8 | 前缘修正系数 | 可对吸力面进口曲线微调 |
9 | 有效出气角 | |
10 | 出口偏转角 | 出口圆切线与吸力面尾缘切线夹角 |
11 | 关联系数 | 控制喉部出口无遮盖段曲线 |
12 | 出口楔角 | 吸力面尾缘切线与压力面尾缘切线夹角 |
13 | 控制系数1 | 吸力面第一段曲线控制系数1 |
14 | 控制系数2 | 吸力面第一段曲线控制系数2 |
15 | 控制系数3 | 吸力面第二段曲线控制系数1 |
16 | 控制系数4 | 吸力面第二段曲线控制系数2 |
17 | 控制系数5 | 压力面曲线控制系数1 |
18 | 控制系数6 | 压力面曲线控制系数2 |
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