MBDyn
参考资料
网站为 https://www.mbdyn.org/ ,在网站Documentation中有Tutorials,还有一个日本小公司的网站上有很多例子 https://www.sky-engin.jp/en/ 。 https://github.com/mmorandi/MBDyn-web/raw/main/userfiles/documents/tutorials.pdf 是教程。
编译安装
算例测试
在 FENGSim/starter/mbdyn
目录下有一个自由落体的简单例子,运行如下命令。
cd FENGSim/starter/mbdyn
./../../toolkit/DAE/install/mbdyn_install/bin/mbdyn -f free_falling_body_E.mbd
gnuplot
plot 'free_falling_body_E.mov' using 3:4

前后处理
https://github.com/mmorandi/MBDyn-web/raw/main/userfiles/documents/tutorials.pdf 中第2.1节中介绍了结果文件格式,尤其是mov,如下。
The second file (mov) will contain Nnodes by Ntimesteps lines formatted as:
the node label
the three coordinates of the position of the node
the three Euler-like angles that define the orientation of the node (following the 1, 2, 3 convention)
the three components of the velocity of the node
the three components of the angular velocity of the node
