Inverse Design Method for Low-Boom Supersonic Transport with Lift Constraint
Inverse Design Method for Low-Boom Supersonic Transport with Lift Constraint
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DOI：
10.2514/1.j062410
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发表时间：
2023-04
期刊：
影响因子：
2.5
通讯作者：
Yuanyuan Ding;Zhonghua Han;Jianling Qiao;Qing Chen;Wenping Song;Binhe Song
中科院分区：
文献类型：
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作者：
Yuanyuan Ding;Zhonghua Han;Jianling Qiao;Qing Chen;Wenping Song;Binhe Song
低爆反设计方法由于其以较低的计算成本降低音爆的良好能力，对于超音速运输机（SST）的初步设计具有很大的意义。然而，主要的挑战是如何制定一个可实现的目标。本文提出了一种使用新的目标生成策略的逆向设计方法来应对这一挑战。与 Jones–Seebass–George–Darden 方法和混合保真度逆设计方法 [Li–Shields–Geiselhart (LSG) 方法] 等现有方法不同，该方法直接参数化参考配置的近场超压分布，并在受巡航升力和体积约束的情况下，通过求解增强 Burgers 方程来获得最佳目标分布，从而最小化地面感知水平分贝 (PLdB)。该方法通过日本宇宙航空研究开发机构（JAXA）翼体案例进行了验证，结果表明该方法可以减轻升力约束下的音爆，比LSG方法减少了2.07 PLdB。所提出的方法应用于名为 NPU-T7104 的大型 SST 配置的低吊杆设计，该配置的尺寸与 Tupolev Tu-144 接近；结果表明，在保持气动性能的同时，有效防止了冲击波合并，并且地震强度显着降低。
The low-boom inverse design method is of great interest for the preliminary design of supersonic transport (SST), owing to its good capability of reducing sonic boom at low computational cost. However, the main challenge is how to prescribe an attainable target. This paper proposes an inverse design method using a new target-generation strategy to address this challenge. Unlike existing methods such as the Jones–Seebass–George–Darden method and the mixed-fidelity inverse design method [the Li–Shields–Geiselhart (LSG) method], the proposed method directly parameterizes the near-field overpressure distribution of a reference configuration and minimizes the ground perceived level in decibels (PLdB) predicted by solving the augmented Burgers equation to obtain an optimal target distribution, subject to cruise lift and volume constraints. The proposed method is demonstrated by the Japan Aerospace Exploration Agency (JAXA) Wing Body case, which shows that it mitigates sonic boom under lift constraint and achieves a reduction of 2.07 PLdB more than the LSG method. The proposed method is applied to the low-boom design of a large SST configuration called NPU-T7104, which is close in size to the Tupolev Tu-144; results show that aerodynamic performance is maintained while shock wave coalescence is effectively prevented, and ground-boom intensity is dramatically reduced.