abeed's blog

I have a model (ball) and would like to get the its eigen frequencies and eigen vectors (modal analysis), in fact i should not need to apply loads, it is just solution to K-w^2 M = 0, how can it be done

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how to plot the total kinetic energy vs. time using ansys (GUI)

how to plot the kinetic energy, potential energy, .. etc at certain vs time using ansys or ansys ls dyna for impact problem

how to refine those hot spots (heigh stress zones) in a meshed
structure using ansys. in fact i have a large body. most of body
subject to very low (negligible or zeor stresses) except few zones with
very much high stress. first i meshed my body with coarse mesh and i
noticed those area which i expect them from experimental results now
how can i refine meshes on basis of von mises stress range.

can one do it with 'select entities'and how?

how to refine those hot spots (heigh stress zones) in a meshed structure using ansys. in fact i have a large body. most of body subject to very low (negligible or zeor stresses) except few zones with very much high stress. first i meshed my body with coarse mesh and i noticed those area which i expect them from experimental results now how can i refine meshes on basis of von mises stress range.

can one do it with 'select entities'and how?

I used the drop test module to simulate elastic ball impact with flat flexible surface of the same ball material properties . i meshed the whole ball with hexahedronls dyna element

Dear Readers

Dea readers

This question seems easy but in fact it is NOT. i do not know how to mesh a ball with ONLY brick elements (no tetrahedron) using ANSYS. Please kindly send me an input file contains the meshing to a.abeed@tu-bs.de

i am a student. I would like to simulate impact of an elastic solid ball with rigid flat surface, I do not know how to create the best mesh for the ball so i obtain good results with ansys LS Dyna (drop test modue). of course there are some advice in DTM like avoiding tetrahedron or sharp edges, ... etc. please help me i think a ball meshed with brick element produce better results but, how can one mesh the ball entirely with only  bricks (no tetrahedron)

A cantilver beam is connected to a closed box. 3 balls of different sizes and materials are inside the box. the beam was draged litle downward from the middle and then left to vibrate freely. of course, during the vibration, the balls will colide with the box walls and with each others. The question: is it possible to simulate this system with ansys? if yes, How?