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将沥青混合料进行网格划分,分别测量各网格的温度值,将各温度测点的坐标值参数化为标准序列,利用B样条模型及其矩阵表达形式建立了离散温度场的重构模型。对建立的温度场重构模型进行数学分析,获得温度场在加热区域的分布。通过不同温度分布概率的对比,实现了再生效果的评价。通过计算散乱点与拟合曲面的距离,分析模型的精度。通过对建立的连续型温度分布模型进行均值求解获得不同结构形式的辐射加热器的能量利用情况,对加热器的辐射效率进行评价。采用某天线进行加热试验,对实测的温度值进行数据处理,结果验证了评价模型的正确性。
The asphalt mixture was meshed, the temperature of each grid was measured, the coordinate values of each temperature measuring point were parameterized as standard sequence, and the discrete temperature field reconstruction was established by B-spline model and its matrix representation model. The established temperature field reconstruction model is mathematically analyzed, and the distribution of the temperature field in the heating area is obtained. Through the comparison of different temperature distribution probabilities, the regeneration effect was evaluated. The accuracy of the model is analyzed by calculating the distance between the scattered point and the fitted surface. The energy utilization of radiant heaters with different structures was obtained by solving the established continuous temperature distribution model and the radiation efficiency of the heaters was evaluated. Using an antenna for heating test, the measured temperature values for data processing, the results verify the correctness of the evaluation model.