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Found 5 results

  1. Hi, I'm new to radioss. I'm carrying out roll over analysis on box as shown in attached image. i've assigned initial velocity along axis and got the box roatating, the problem i'm facing here is the box is being thrown upward and its not falling on the base.do i need to assign gravity? if so how?
  2. @Deep I am working on AOC model and I wanted to find out velocity and acceleration. How to find it?
  3. The Lighthill stress tensor is constructed by taking derivatives of the velocity field. It is possible to build all terms of the Lighthill stress tensor within a post processing package (Fieldview, Ensight, or Paraview) by using the function calculator. To make this calculation efficient, it is suggested that the -extout flag is used on acuTrans when converting the solution to the post-processor format. This writes the velocity gradients to the file. The velocity gradients can then be assembled appropriately in the post processing package to form the Lighthill stress tensor without havin to compute each derivative in the post processor. The divergence of the Lighthill stress tensor is typically used for visualizing the acoustic source strength. Creating and animating isosurfaces of divT can provide insight into the acoustic source characteristics.
  4. can u tech me how to assign the imposed velocity.
  5. Hi. I've tried to build rigid body and the extra nodes. The rigid body is placed CG of a car. The extra nodes are placed in several nodes on fixed position of a seat inside a car. I make imposed velocity, with its rigidbody, x translation (in my case translate backward), and LCID i integrate from acceleration-time history. I try to crash the seat into the box. However, when i look the result animations, only rigid body and the extra nodes moved instead of the whole seat Could i move the whole seat by only create imposed velocity of rigid body? Thank you for your help. Attached the model of the seat picture
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