The invention provides a grid rudder and an aircraft. The grid rudder comprises a plurality of partition plates which are connected with each other and form a grid structure; wherein each partition plate is oppositely provided with a windward side and a leeward side along the two ends of the intersection line of the partition plates, at least one part of the windward side is provided with a notch,and the absolute value of the tangent slope of the outer surface where the notch is located is continuously reduced along the direction from the windward side to the leeward side, a flow guide curvedsurface is formed at the windward side, square arrangement at the windward side is avoided, and under hypersonic speed environment, on one hand, differential pressure resistance and friction resistance are reduced, power efficiency is improved, the total heat generated by heating of the windward side is reduced, and the structural strength of materials of the grid structure is guaranteed; on theother hand, the condition of local high heat generated by protruding parts such as edges and corners under the condition of airflow friction is improved, the aerodynamic heat of the grid structure isreduced, the thermal environment distribution of the grid structure is improved, and the temperature distribution uniformity is improved, so that the structural thermal stress is reduced, and the strength performance is optimized.
本发明提供一种栅格舵和飞行器,包括:若干个彼此连接的隔板,若干个所述隔板形成栅格结构;沿所述隔板相交线的两端,所述隔板相对设置有迎风面和背风面,所述迎风面上至少一部分设置有缺口,沿所述迎风面向所述背风面方向,所述缺口所在外表面的切线斜率的绝对值连续减小。在迎风端成型导流曲面,避免了迎风端处的方形设置,高超声速环境下,一方面降低了压差阻力和摩擦阻力,提高了动力效率,降低了迎风端发热的总热量,保证了栅格结构的材料的结构强度;另一方面改善了棱角等突出部分在于气流发生摩擦情况下产生的局部高热的情况,降低了栅格结构的气动热,改善其热环境分布,提高了温度分布均匀性,从而降低结构热应力,优化强度性能。
Grid rudder and aircraft
一种栅格舵和飞行器
2020-10-02
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |