Small elastic deformation analysis in a rigid body motion

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Small elastic deformation analysis in a rigid body motion

Challenge: Identification of elastic deformation in a structure which deforms as a rigid body mainly

If the deformation of a structure has to be simulated, in some cases, the difficulty is found to identify mainly an elastic deformation since rigid body modes are dominant under the condition without restriction.
Applying post-processor eliminates contribution of rigid body motion from translational motion but from rotational motion.

How to resolve pains:

Applying ESTECH.rmRBM extracts elastic deformation solo from the whole structure deformation by subtracting rigid body motion describing by rigid body modes and the software is applicable together with MSC Nastran static and linear eigenvalue analysis as well as frequency response and transient response analysis.

rmrbm103_450x222.gif
Left:Before eliminating rigid body motion/Right:After eliminating rigid body motion
ESTECH.rmRBM SOL103 results

rmrbm112_450x222.gif
Left:Before eliminating rigid body motion/Right:After eliminating rigid body motion
ESTECH.rmRBM SOL112 results

Strength of the Software
  • Application procedures are following two steps. First, designate the software, then define nodes which are used to obtain its rigid body motions.
  • It is also available to eliminate rotational motion of the rigid body motion which is unable to erase by general post processer.
Software to be applied
*The name of company and/or individual product name mentioned above are either trademark or registered trademark.

ISID Group Companies

  • Information Services International-Dentsu, Ltd.

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