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R
rrakos1-Visitor
1-Visitor
August 9, 2017
Question

BINARY OUTPUT FILES

  • August 9, 2017
  • 1 reply
  • 6866 views

Hello,

 

I was wondering if anyone has written code to read in/write out the binary s01 (and other) files?

 

(I understand the structure of the file and yes I know I can output as ascii, I can do it with ascii but it is inefficient and my code writing skills are woeful)

 

Reason for request : I will retire before PTC to sort out node numbering and lack of signed vm stress.

 

Thanks

 

 

1 reply

skunks
skunks19-Tanzanite
19-Tanzanite
August 11, 2017

Hello Roland,

 

1. vibration analysis => analytical (example attached)

2. static analysis => fatigue advisor

 

regards

paul

R
rrakos1-VisitorAuthor
1-Visitor
August 17, 2017

Hello Paul,

 

1. In case of a simple modal simulation, I have for the first mode 100 Hz for example. For this mode, I have a stress distribution - for undamped case, as far as I know. But what does this stress distribution mean exactly? How can I it reproduce? If I complate a vibration analyisis with 100 Hz - for undamped case - then I dont get same stress distribution. What is the reason? How can I reproduce the stress distribution same to the first mode of modal analysis?

 

2. OK so I have a modal analysis; 100 Hz at the first mode. It is evident for me that this structure can not be used on this frequency. But if the frequency is 30 Hz for exmaple, how can I calculate the limit cycle number (until breakage)? The max stress on 30 Hz is 50 MPa (for example). Now have I to use the pdf (sent by you) and see the cycle number on 50 MPa?

 

Please help me.

 

Thanks a lot

Roland

R
rrakos1-VisitorAuthor
1-Visitor
August 18, 2017

Hello Paul,

 

ok, I understand.

 

At the moment, I have a simple dynamic freq.analysis, the settings is default:

set_1.PNG

 

I have a monitor point which shows the stress value in the function of frequency:

 

res_1.PNG

 

It can be seen that tha max stress is at the eigen freqency (~49Hz). But what does it mean this diagram for me? You tell me that it is not enough to evaluate lifetime. But what is the information which is useful for me from this result/diagram?

 

Thanks

Roland

 

 

 

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