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Contributor
plastr
Posts: 11
Registered: ‎11-03-2011

Cooling with occurance number two

198 Views, 3 Replies
12-28-2011 12:05 AM

Dear All,

 

I am trying to do cooling anaysis for part ( 2 cavity) whose  mid plane mesh size is high( each part with 52,000 elements). From last three days analysis is running but completed only 41 % .

 

Due to urgency I am vioalating basic rule of moldflow as below.

As My cooling for two cavities are separate ,I am doing cooling analysis for only one part with occurance of two .

 

I am giving occurance of two to avoid tonnage & pressure difference. I am unable to judge what changes will be observed in output results . What will be difference in warpage if I do it . Please suggest me ,It will help to increse my knowledge.

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Valued Contributor
nishit78
Posts: 82
Registered: ‎08-05-2009

Re: Cooling with occurance number two

12-28-2011 11:09 AM in reply to: plastr

May be i am putting it too harshly but you cannot (or rather should not) use occurence numbers when analyzing cool & warp.

 

Perhaps this is where your problem lies.

 

From moldflow help:

If you intend to proceed to a Cool, Warp or Stress analysis, you cannot use occurrence numbers to represent a portion of a part.You must model the entire part.



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Valued Contributor
tim.vanast
Posts: 70
Registered: ‎07-17-2009

Re: Cooling with occurrence number two

01-05-2012 01:38 PM in reply to: plastr

If your parts are identical, and the cooling is separate for each part (ie cooling lines do not run across both parts, then I think you would be safe with your results. 

 

And in a pinch, i think you could get away with the cooling even if it does run across both parts as long as there is not too much heat increase in the channel.

 

Regards,


Tim

 

 

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Mentor
madhukeshwart
Posts: 267
Registered: ‎03-18-2009

Re: Cooling with occurance number two

01-05-2012 10:42 PM in reply to: plastr

1. cooling and warp analysis -occurance no of will not work.

 

2. Create full model and take a help from moldflow tech support to run the analysis.

 

3. Try with different solver options to run bigger models.

 

Hope it help

 

Regards,

Madhukeshwar Talwar

Chrysler India Automotive Pvt. Ltd.

Cell No: +91-9600060862/852

mail id : madhukeshwart@gmail.com

 

Madhukeshwar Talwar
FIAT-CHRYSLER ATC, Chennai
mail: madhukeshwart@gmail.com
09600060862
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