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大展弦比太阳能飞机推进系统电池的位置将影响机翼结构的固有频率及振动响应,较大的振动响应将影响飞机的安全。首先建立机翼的三维模型,并进行理论分析,其次利用有限元分析软件进行分析。研究表明理论分析结果与有限元分析结果相一致,电池位置对于机翼结构的一阶扭转频率影响较大且电池位置越靠前振动响应越小。研究结果可作为布置电池位置的基本参考。
The large aspect ratio of the solar propulsion system battery position will affect the natural frequency of the wing structure and vibration response, the larger the vibration response will affect the safety of the aircraft. Firstly, the three-dimensional model of the wing was established and analyzed theoretically. Secondly, the finite element analysis software was used for the analysis. The results show that the theoretical analysis results are consistent with the results of finite element analysis. The position of the battery greatly affects the first-order torsional frequency of the wing structure and the smaller the battery position, the smaller the vibration response. The results can be used as a basic reference for the location of the battery.