The algorithm used to create the modal neutral file (.MNF) is based on a formulation called component mode synthesis (also known as dynamic substructuring). ADAMS uses the approach of Craig -Bampton with some slight modifications.
上面是ANSYS帮助文档里关于ANSYS生成模态中性文件的一句话,小弟理解的不是很准确,请大家指点,谢谢