[fluidmechanics]

Dear All;

I am trying to simulate concurrent oscillation of pitch and yaw using v.9.04, so I need to superpose rigid rotation of yaw over pitch. As you know during yaw motion, pitch axis rotates, also. (Oscillations are in body coordinate system). Introducing yaw motion as a child to pitch rotation, the direction of pitch axis does not change over time! Can any body help me?

Regards

[huazhongdk@gmail.com]

Originally Posted by fluidmechanics

Dear All;

I am trying to simulate concurrent oscillation of pitch and yaw using v.9.04, so I need to superpose rigid rotation of yaw over pitch. As you know during yaw motion, pitch axis rotates, also. (Oscillations are in body coordinate system). Introducing yaw motion as a child to pitch rotation, the direction of pitch axis does not change over time! Can any body help me?

Regards

The multi-body motion in the latest version of this software (>13.06) could be applied to solve this issue by identifying a new coordinate system, which moves along the translation motions of the ship.