The invention belongs to the field of aircraft aerodynamic design. The method comprises the following steps: in the appearance design of the fairing, a quadratic curve is adopted as a control line ofa plurality of sections in X, Y and Z directions of a space, a curved surface is generated to be communicated with an airplane body, and a plurality of antenna array fairing appearance schemes with streamline property are formed; and finally, determining an antenna array fairing appearance scheme with the optimal aerodynamic characteristics through a method of combining numerical simulation and wind tunnel test verification. The fairing obtained through the design method has the advantages that the antenna array can be completely enveloped, certain gap requirements are met, normal use of electrical performance is not affected, aerodynamic resistance is small, local airflow separation is weak, and eddy currents do not occur locally, and test flight verification shows that the antenna arrayfairing is excellent in aerodynamic characteristic.
本发明属于飞机空气动力设计领域,涉及一种飞机测向天线阵整流罩的设计方法,该方法是在整流罩的外形设计中,采用二次曲线作为空间X、Y、Z三个方向多个剖面的控制线,生成曲面与飞机机身相贯,形成具有流线性的多种天线阵整流罩外形方案;最后,通过数值模拟和风洞试验验证相结合的方法,确定空气动力特性最佳的天线阵整流罩外形方案。采用本发明提出的设计方法得到的整流罩,具有能完全包络天线阵且满足一定的间隙要求、不影响电性能的正常使用,以及气动阻力较小、局部气流分离较弱、局部未出现涡流等优点,试飞验证表明该天线阵整流罩空气动力特性优良。
Design method of aircraft direction-finding antenna array fairing
一种飞机测向天线阵整流罩的设计方法
2020-06-02
Patent
Elektronische Ressource
Chinesisch
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