LS-DYNA后处理问题

tzhuzi

在LS-DYNA的时间后处理器中,得到一个节点的nodefile数据,在数据中,
有三个X-RACCEL,这三个个代表什么意思?另外,如果知道一个节点在某个方向的加速度(如,位移加速度,转动加速度)怎么求该节点的惯性力,计算的话需要该节点的质量和转动惯量,可是怎么确定这些量.

femman

U mean NODOUT?
I guess what U said "3 X-RACCEL" must be x, y,z rotational acceleration, the program of LS_DYNA using langrange coordinate tensor calculation, all coordinate labeled as X. pls refer to *DATABASE_option in keyword manual for details.
according to what component U want you can output mass, force,velocity, acceleration and energy etc...