基于MCNP的空间辐射效应可视化仿真系统设计  

Design of Visual Simulation System for Space Radiation Effect Based on MCNP

作　　者：胡涛[1] 梁森 万波[1] HU Tao;LIANG Sen;WAN Bo(Xidian University,Xi’an 710071,China)

机构地区：[1]西安电子科技大学,西安710071

出　　处：《空间控制技术与应用》2022年第1期72-80,共9页Aerospace Control and Application

基　　金：国家自然科学基金资助项目(61972302)。

摘　　要：当前对航天器的抗辐射性能试验主要依靠地面模拟和计算机仿真,而地面模拟的成本较高且会受到地面环境的限制,计算机仿真则存在模型编辑困难、效率低下等问题.设计了一种基于MCNP的空间辐射效应可视化仿真系统,使用MCNP计算几何模型中关注点在空间辐射环境下的辐射效应.为了实现仿真过程的可视化和交互性,系统利用了WEB GL技术、中间件技术和云计算技术进行构建.该系统首先通过WEB GL技术在web页面上进行几何模型可视化,并可以通过用户交互设定模型材质、辐射源、关注点等参数,然后通过模型转换中间件将几何模型转换为MCNP软件的输入文件,最后调度部署在计算节点上的MCNP软件计算几何模型中关注点的辐射效应.测试结果表明,该可视化仿真系统具有跨平台、易扩展、交互性强等特点,能够有效提高空间辐射效应的仿真效率和体验.The hardness performance test of spacecrafts mainly depends on ground simulation and computer simulation. The main drawback of ground simulation is the cost and the ground environment. However, the computer simulation has some problems such as model editing difficulty and low efficiency. We design a visual simulation system of space radiation effects based on MCNP, in which MCNP is used to calculate the detector point’s radiation effects of the geometric model in the space radiation environment. The system is built by using WEB GL technology, middleware technology and cloud computing technology to realize the visualization and interaction of simulation process. Firstly, the system visualizes a geometric model on Web pages by using WEB GL technology, and users can set parameters of this model such as materials, radiation sources, detector points and so on. Then, the visualized geometric model is transformed into an input file of MCNP by the model transformation middleware. Finally, the radiation effects of the detector points in the geometric model is calculated by using the MCNP deployed on the computing nodes. Our experimental results show that the visual simulation system can effectively improve the simulation efficiency and experience of space radiation effects and has the characteristics of cross-platform, easy expansion and strong interaction.

关 键 词：可视化 仿真系统 MCNP 空间辐射效应 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]