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Valued Mentor
tony.ridley
Posts: 653
Registered: ‎09-07-2011

Footfall Analysis - Increment Number

301 Views, 5 Replies
09-07-2011 05:44 PM

When you run a footfall analysis, what is the increment number?  What does it refer to?  Basically, the footfall analysis runs PAINFULLY SLOW.  Strange thing is, even if I choose to only excite ONE node, the increment number does not change.  Limiting walking frequency, number footsteps etc does not change the increment. 

 

I really need to speed up the analysis but am unsure how to proceed. 

 

Robot 2011, SP4

6GB RAM, E8500 CPU@3.16GHz

 

footfall.jpg(on the calculations dialogue box)?

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Product Support
Rafal.Gaweda
Posts: 5,595
Registered: ‎04-26-2010

Re: Footfall Analysis - Increment Number

09-09-2011 02:57 AM in reply to: tony.ridley

Hi,

 

UNfortunatelly user is not able to control number of steps \ increments in footfall analysis. It is done automatically by program.



Rafal Gaweda
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Valued Mentor
tony.ridley
Posts: 653
Registered: ‎09-07-2011

Re: Footfall Analysis - Increment Number

09-09-2011 08:58 AM in reply to: Rafal.Gaweda

Rafal, thanks.  So what is your suggestion to avoid a 45 hour long analysis?  

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Product Support
Rafal.Gaweda
Posts: 5,595
Registered: ‎04-26-2010

Re: Footfall Analysis - Increment Number

09-11-2011 11:37 PM in reply to: tony.ridley

If you do not mind please send us your model to check.



Rafal Gaweda
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Valued Mentor
tony.ridley
Posts: 653
Registered: ‎09-07-2011

Re: Footfall Analysis - Increment Number

09-12-2011 06:24 PM in reply to: Rafal.Gaweda

Rafal,

 

My model has a Hollowcore slab in it. 

For my original footfall analysis run, I set the hollowcore to disregard stiffness in the transverse direction. 

This run gave me 2117 iterations

 

Today, I turned off the disregard stiffness checkbox, and re-run the analysis.  Now I only have 100 iterations, and the analysis only takes a couple of minutes.  Can you please explain why there is such a large discrepancy in the calculation method. 

 

Regards.

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Product Support
Rafal.Gaweda
Posts: 5,595
Registered: ‎04-26-2010

Re: Footfall Analysis - Increment Number

09-13-2011 12:59 AM in reply to: tony.ridley

Tony,

 

Without looking at model - number of modes?

I can see you have subscription so if you want to check this model by my please please create Service Rerquest via subscription center or if you are from GHD I can contact you.



Rafal Gaweda
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