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确定地面停放飞机局部温度环境的变化规律是编制飞机结构局部环境谱和解决传感器“温漂”问题的关键工作。为此,开展了地面停放飞机局部温度实测工作,对不同舱室的温度变化规律进行了分析;基于模糊聚类的方法,根据局部温度的差异将飞机舱室划分为3类;选取结构系数和日照系数为关键参数,研究了环境温度对局部温度的影响规律;以百叶箱温度为自变量,建立了飞机局部温度模型;并通过统计方法确定了3类舱室温度模型关键参数的取值范围。研究结果表明:同一密闭状态下的不同飞机舱室可以有较大的温度差异;影响舱室温度的主要因素有日照、降雨以及舱室的结构形式和位置;实测温度与模型预测温度的对比证实了模型具有较高的精度。
Determining the variation law of the local temperature environment of the aircraft parked on the ground is the key work in compiling the local environmental spectrum of the aircraft structure and solving the problem of the sensor “drift”. Therefore, the local temperature measurement of ground parking aircraft was carried out, and the temperature variation of different compartments was analyzed. Based on the method of fuzzy clustering, the aircraft compartments were divided into three categories according to the difference of local temperature. The structural coefficient and solar radiation coefficient As the key parameters, the influence law of ambient temperature on local temperature was studied. The local temperature model of aircraft was established by using the shutter temperature as independent variable. The range of critical parameters of three kinds of cabin temperature model was determined by statistical method. The results show that there are large temperature differences among different aircraft compartments under the same confinement condition. The main factors influencing the compartment temperature are sunshine, rainfall and the structure and location of the compartments. The comparison between the measured temperature and the forecast temperature of the model confirms that the model has Higher accuracy.