Acta Aeronautica et Astronautica Sinica ›› 2024, Vol. 45 ›› Issue (9): 529069-529069.doi: 10.7527/S1000-6893.2023.29069
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Zixu WANG1, Pan LI1(), Ke LU1,2, Zhenhua ZHU1, Renliang CHEN1
Received:
2023-05-30
Revised:
2023-06-18
Accepted:
2023-07-07
Online:
2024-05-15
Published:
2023-07-17
Contact:
Pan LI
E-mail:lipan@nuaa.edu.cn
Supported by:
CLC Number:
Zixu WANG, Pan LI, Ke LU, Zhenhua ZHU, Renliang CHEN. Optimized design of trim strategy for coaxial rigid rotor high-speed helicopter[J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(9): 529069-529069.
Table 2
Total required power comparison before and after optimization design (cruising speed)
变量 | 基本配平策略 (方案1) | 优化配平策略 (方案2) |
---|---|---|
俯仰角/(°) | 0 | 3.43 |
平尾安装角/(°) | 0 | -4.21 |
无量纲旋翼转速 | 0.90 | 0.83 |
横向周期变距差动/(°) | 0 | 2.32 |
升力偏置 | 0.31 | 0.29 |
操纵极性反向 | 否 | 否 |
纵向短周期模态阻尼比 | 0.54(等级1) | 0.57(等级1) |
荷兰滚模态阻尼比 | 0.28(等级1) | 0.28(等级1) |
纵向操纵功效/(rad∙s-2∙cm) | 0.45(等级1) | 0.52(等级1) |
横向操纵功效/(rad∙s-2∙cm) | 1.52(等级1) | 1.44(等级1) |
桨毂合力矩/(N∙m) | 95 567.99 | 65 123.72 |
总需用功率/kW | 2 788.26 | 2 628.72 |
Table 3
Total required power comparison before and after optimization design (maximum flight speed)
变量 | 基本配平策略 (方案1) | 优化配平策略 (方案3) |
---|---|---|
俯仰角/(°) | 0 | 3.17 |
平尾安装角/(°) | 0 | -5.84 |
无量纲旋翼转速 | 0.90 | 0.82 |
横向周期变距差动/(°) | 0 | 2.00 |
升力偏置 | 0.32 | 0.29 |
操纵极性反向 | 否 | 否 |
纵向短周期模态阻尼比 | 0.50(等级1) | 0.42(等级1) |
荷兰滚模态阻尼比 | 0.28(等级1) | 0.27(等级1) |
纵向操纵功效/(rad∙s-2∙cm) | 0.48(等级1) | 0.41(等级1) |
横向操纵功效/(rad∙s-2∙cm) | 1.61(等级1) | 1.50(等级1) |
桨毂合力矩/(N∙m) | 100 549.09 | 63 436.41 |
总需用功率/kW | 4 101.90 | 3 819.90 |
Table 4
Comparison of rotor hub moments before and after optimized design (cruising speed)
变量 | 基本配平策略 (方案1) | 优化配平策略 (方案4) |
---|---|---|
俯仰角/(°) | 0 | 4.14 |
平尾安装角/(°) | 0 | -5.18 |
无量纲旋翼转速 | 0.90 | 1.00 |
横向周期变距差动/(°) | 0 | 3.06 |
升力偏置 | 0.31 | 0.14 |
操纵极性反向 | 否 | 否 |
纵向短周期模态阻尼比 | 0.54(等级1) | 0.60(等级1) |
荷兰滚模态阻尼比 | 0.28(等级1) | 0.26(等级1) |
纵向操纵功效/(rad∙s-2∙cm) | 0.45(等级1) | 0.54(等级1) |
横向操纵功效/(rad∙s-2∙cm) | 1.52(等级1) | 1.63(等级1) |
J2/(N∙m) | 95 567.99 | 42 419.24 |
总需用功率/kW | 2 788.26 | 2 865.27 |
Table 5
Comparison of rotor hub moments before and after optimized design (maximum flight speed)
变量 | 基本配平策略 (方案1) | 优化配平策略 (方案5) |
---|---|---|
俯仰角/(°) | 0 | 4.42 |
平尾安装角/(°) | 0 | -5.74 |
无量纲旋翼转速 | 0.90 | 1.00 |
横向周期变距差动/(°) | 0 | 2.32 |
升力偏置 | 0.32 | 0.15 |
操纵极性反向 | 否 | 否 |
纵向短周期模态阻尼比 | 0.50(等级1) | 0.59(等级1) |
荷兰滚模态阻尼比 | 0.28(等级1) | 0.26(等级1) |
纵向操纵功效/(rad∙s-2∙cm) | 0.48(等级1) | 0.60(等级1) |
横向操纵功效/(rad∙s-2∙cm) | 1.61(等级1) | 1.75(等级1) |
J2/(N∙m) | 100 549.09 | 45 017.28 |
总需用功率/kW | 4 101.90 | 4 266.07 |
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