Learning Forum

[kamalkrishna]

As per JSS 55555 standard bump analysis, magnitude and duration is defined as in images.As per standard 4000 series of bumps to carried out.This might be possible in bump testing machine.But how to this simulation in ansys.

 

[dlooman]

In real life the equipment would fail due to fatigue.  Solving for multiple bumps with FEA wouldn't produce a fatigue failure.  Perhaps just a single bump or only enough bumps to obtain a resonant response could be used to compute the stress range per cycle and then a fatigue calculation could be performed.  Ansys nCode could probably due both, but Mechanical could do the transient stress analysis and an external fatigue calculation could be done.