Simulation of translational and rotational motion assuming objective as a rigid body structure

English

Simulation of translational and rotational motion assuming the structure as a rigid body structure

Challenge: Identification of rotational motion which is hardly measured by physical test

In general, physical test is able to measure only translational motion but rotational motion of a structure, which doesn't allow us to identify the motion of a structure precisely if rotational motion involves.
This creates pains for the following occasion.

  • Simulation for engine auxiliaries parts vibration and/or fatigue strength under running condition
  • Understanding the drive shaft motion on a vehicle
  • Banding performance prediction of a printing machine

rbodymotion.gif

How to resolve pains:

In the above mentioned cases, the prediction of rigid body motion of arbitrary points is available when the structure is assumed to be a rigid body.
ESTECH.Rmotion predicts 6 DOF rigid body motions (translational X 3, rotational X 3) and eliminates errors as much as possible.。

rmotion_fig2.gif

Strength of the Software
  • Elastic deformation of a structure is calculated by recomposing the motion of the measured points by processing predicted rigid body motion.
  • Motion data is calculated at any point other than measuring point by extrapolation assuming the structure is a rigid body.
  • Application of least-square method yields highly accurate output with minimum experimental error as much as possible
  • Inertia properties are also predictable from the calculated rigid body motion by using ESTECH.[ I ]property.
  • The transfer function synthetic model is able to be developed when a connecting plane is assumed to be a rigid.
Software to be applied

ISID Group Companies

  • Information Services International-Dentsu, Ltd.

Back to the top of this page