Brake Rotor Analysis

[sonicsvt02]

Hello,



I am currently a senior ME student and <st1lace><st1laceName>Bradley</st1laceName>
<st1laceName>University</st1laceName></st1lace> on the Formula SAE Team,
using Wildfire 2.0 Student Edition. I am trying to do a thermal analysis
on a brake rotor, but I am having some issues with mechanica. I know a Q
value(BTU) the part will see from the brake pad, but when i constrain the part with
a temperature, the entire part becomes that temperature. Long story
short, I don

 

[Israr]

Contact your CAD Administrator who is in incharge of ptc software maintenance/upgradation. Ask him to download or order ptc official training material on Structural/Thermal Analysis. We have this and this has all what you need.


Israr

 

[sonicsvt02]

Is there a way to do this without ordering the official
training material? I have a limited time to do this analysis and our
system admin takes forever to do anything. I have spent a great deal of
time on this part. I am ready to start using abaqus, hoping that it will
be easier to do the analysis.

 

[jayashanger]

sonics,


Please send me more detailson the problem, I have the training material on Pro mechanica and may be I can find something that is useful.


[email protected]

 

[Hacks]

sonics,


I have the Wildfire 2.0 Structural and Thermal Simulation
Help Topic Collection in PDF format thatI could email to
you (even zipped up, it's too big a file to attach here).

It's over 1350 pages long and looks quite thorough.

 

[mch]

Jay,


Have you applied any boundary conditions to your rotor? Typically the swapt surfaces of the rotor will be able to reject heat rapidly, so you will need to apply a heat transfer co-efficient to these surfaces. At the moment it sounds like you have analysed the rotor as if it were perfectly insulating. Also don't forget that the analysis should not be steady-state, since application of the brake pads (and hence heat generation) is only for a few seconds at most. Brake rotor analysis is a particularly tricky analysis problem to get right, and test data helps a lot, even if it's only from one or two thermocouples.


Word of warning: If you are designing in inches, then the consistent unit of energy is not BTU, but in-lbf. Make sure you convert your values correctly. If you work in metric, the unit of heat input is Watts for parts whose length unit is metres and milliWatt for length units of millimetres.


All the best for your FSAE effort.

 

[Pramod Kadam]

Hacks,
Can you also email me the same file for my ref. my email id is [email protected]

Thanks in Advance,
Pramod!

 

[chin]

i need help in pro/verify specially in fitting of scan data to model? help

 

[nanosigma]

ProMechanica does not allow moving boundary conditions, you have to use either ANSYS or FLUENT