一种从UG模型到MCNP几何模型转换算法的研究与实现

RESEARCH AND IMPLEMENTATION OF AN ALGORITHM OF CONVERTING UG MODEL TO MCNP GEOMETRY MODEL

针对MCNP输入文件结构复杂、几何模型描述工作容易出错的特点,提出了基于UG模型文件(缺省扩展名为prt)的MCNP输入文件中几何模型自动生成的算法。使得可以在UG环境中构建对象模型后,用该算法自动生成对应于该模型的MCNP输入文件中的几何模型,大大地提高了MCNP输入文件的制作效率。

MCNP input files have complicated structure and are error-prone in geometry model description. In light of these characters, the paper puts forward an algorithm which automatically generates geometry model in MCNP input files which are based on UG model files （ with default extension . prt）. After setting up the object model in UG environment ,the use of this algorithm makes it available to automatically generate the geometry model in MCNP input files corresponding to the set model. It improves the efficiency of making MCNP input files remarkably.