固体力学与飞行器总体设计

光谱模拟器阵列辐照度分布等效计算方法

  • 李昕昕 ,
  • 王彬文 ,
  • 张肖肖 ,
  • 丛琳华 ,
  • 吴敬涛
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  • 中国飞机强度研究所 强度与结构完整性全国重点实验室,西安 710065
.E-mail: 17403875@623.avic

收稿日期: 2023-01-09

  修回日期: 2023-05-02

  录用日期: 2023-06-19

  网络出版日期: 2023-07-07

基金资助

民用飞机专项科研技术研究(MJZ3-2N21-3)

Equivalent calculation method of irradiance distribution of spectrum simulator array

  • Xinxin LI ,
  • Binwen WANG ,
  • Xiaoxiao ZHANG ,
  • Linhua CONG ,
  • Jingtao WU
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  • National Key Laboratory of Strength and Structural Integrity,Aircraft Strength Research Institute of China,Xi’an 710065,China
E-mail: 17403875@623.avic

Received date: 2023-01-09

  Revised date: 2023-05-02

  Accepted date: 2023-06-19

  Online published: 2023-07-07

Supported by

Civil Aircraft Special Scientific Research Technology Research(MJZ3-2N21-3)

摘要

针对蒙特卡洛法计算光谱模拟器阵列辐照度时间过长的问题,基于解析法提出了光谱模拟器阵列的辐照度快速计算方法。首先,建立单个光谱模拟器的等效面光源温度分布模型,利用辐射传热定律建立关于面光源各离散点温度的线性方程组,求解得到等效面光源的温度分布,实现了具有复杂反射屏光谱模拟器的辐射传热模型简化。并将面光源和辐照面分别离散化为光源点和接收点,逐点计算辐照面各点接收到的辐照度。其次,进一步建立了光谱模拟器阵列绕xyz三轴旋转不同角度下的辐照度计算方法,提出等效面光源与辐照面相交时的照射范围判断依据。最后,将辐照度计算结果与试验结果进行对比,误差小于4%,证明等效面光源代替光谱模拟器计算辐照度具有一定的可行性。

本文引用格式

李昕昕 , 王彬文 , 张肖肖 , 丛琳华 , 吴敬涛 . 光谱模拟器阵列辐照度分布等效计算方法[J]. 航空学报, 2023 , 44(23) : 228493 -228493 . DOI: 10.7527/S1000-6893.2023.28493

Abstract

The Monte-Carlo method is used to calculate irradiance distribution of spectral simulator array, the calculation time is too long. The fast calculation method of irradiance for spectral simulator array is obtained based on the analytical method. Firstly, Temperature distribution model of equivalent surface light source is established for a single spectral simulator. Linear equations about temperature for each discrete point of surface light source are established by radiation heat transfer laws. Temperature of equivalent surface light source is obtained. Radiation heat model is simplified of spectrum simulator with complex reflection screen. The surface light source and the irradiated surface are discretized into light source point and receiving point. The irradiance at each received point is calculated of irradiance surface. Secondly, the irradiance distribution is calculated of spectral simulator array rotating around xy and z axes at different angles by using the equivalent surface light source. The criterion for irradiation range is proposed when equivalent surface light source intersects irradiance surface. Lastly, the calculated results of irradiance are compared with test results, the error is less than 4%. It confirmed the feasibility of equivalent surface light source instead of spectral simulator in calculating the irradiance.

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