噪声与静压载荷同时作用下飞机壁板试验研究

目的 模拟飞机结构承受静压载荷与噪声载荷时的真实情况，为飞机设计初期阶段设计选型提供试验数据支持。方法 使用压缩空气进行静压加载，模拟噪声与正压、噪声与负压联合加载，并以静压载荷0.06 MPa、噪声载荷151 dB为例，进行了试验验证。结果 在噪声与静压载荷同时作用下，若静压载荷过大，结构会发生塑性变形。结论 提出的飞机选型阶段噪声与静压载荷联合加载的试验方法，实现了噪声与静压(正压与负压)联合加载，并通过飞机壁板声静联合试验，验证了飞机壁板结构的噪声与静压联合试验方法。

Experimenton Aircraft Panel under Simultaneous Action ofAcoustic Load and Hydrostatic Load

The work aims to simulate the real situation of aircraft structure subjected to static pressure load and noise load, and provide experimental data for aircraft type selection in the early stage of design. Compressed air was used to carry out static pressure loading, and the combined loading of noise and positive pressure, noise and negative pressure was simulated. Taking static pressure load of 0.6 atmospheres and noise load of 151 dB as examples, the experimental verification was conducted. Under the simultaneous action of noise and static pressure load, if the static pressure load was too large, the structure underwent plastic deformation. The proposed test method of combined loading of noise and static pressure in aircraft selection stage realizes the combined loading of noise and static pressure (positive pressure and negative pressure), and verifies the combined test method of noise and static pressure of aircraft panel structure through the combined test of aircraft panel.