用于跨音速风洞试验的增材与减材复合制造柔性机翼模型的构建
Construction of flexible wing models by combined manufacturing of additive and subtractive processes for transonic wind tunnel testing
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中文总结 AI 辅助
本研究结合金属增材制造与减材加工的复合制造方法，制作出精度更高、颤振行为一致的柔性机翼模型，可高效重复生产，用于可靠的跨音速气动弹性风洞试验。
中文摘要 AI 辅助
本研究提出一种结合金属增材制造与减材加工的系统制造方法，用于构建跨音速风洞试验用的柔性机翼模型。研究人员制作了两款机翼设计，并从几何精度、结构特性和气动弹性行为三方面进行评估，开展了三维扫描、静态载荷试验、地面振动试验、有限元分析及跨音速风洞试验。所制作的模型以良好的精度复现了设计的几何形状与结构特性，平均表面粗糙度低于1.0微米，平均表面偏差低于0.3毫米，相比以往依赖人工技能的抛光方法提升了几何精度。独立制造的模型还展现出高度一致的颤振行为，测得的颤振频率分别为157.0赫兹和158.0赫兹。结果表明，这种增材与减材复合制造方法可高效、可重复地生产柔性机翼模型，用于可靠的气动弹性风洞试验。
英文摘要
This study presents a systematic manufacturing approach that combines metal additive manufacturing and subtractive machining to construct flexible wing models for transonic wind tunnel testing. Two wing designs were fabricated and evaluated in terms of geometric accuracy, structural characteristics, and aeroelastic behavior. Three-dimensional scanning, static load tests, ground vibration tests, finite element analyses, and transonic wind tunnel tests were conducted. The fabricated models reproduced the designed geometries and structural properties with good accuracy. The average surface roughness was below 1.0 micrometer, and the average surface deviation was below 0.3 mm, improving geometric precision over previous skill-dependent polishing methods. Independently manufactured models also exhibited highly consistent flutter behavior, with measured flutter frequencies of 157.0 and 158.0 Hz. The results demonstrate that the combined additive and subtractive manufacturing approach enables efficient and reproducible production of flexible wing models for reliable aeroelastic wind tunnel experiments.
