Alloy mustache bar
Posted 02 November 2009 - 03:16 PM
I will work on the drawing tonight, it would help if some one had off a car and could give me some dimensions to start off with
Ie distance in drop between the top mounting holes and the diff bolts
Posted 02 November 2009 - 03:53 PM
Posted 02 November 2009 - 03:58 PM
thanks for that
I have the distance between the main down studs sorted but just the other measurements i dont have
this is the kind of thing i have in mind
basic at this stage but you get the idea
Posted 02 November 2009 - 04:15 PM
Im not sure that making it out of steel is not a bad idea and this i can make it thinner with more intricate cuts
Posted 02 November 2009 - 05:47 PM
Posted 02 November 2009 - 05:51 PM
What do you need from me , as in what type of file
Maybe we can get a few of these made ??
Posted 02 November 2009 - 05:59 PM
Email it to stevo_gj AT hotmail.com
I am going out to dinner but would be able to have have a crack at it later.
Also it would be great if you could draw a small diagram showing the loads you want me to test, just in terms of directions.
Posted 02 November 2009 - 06:19 PM
Im just trying to get basic dimensions at the moment to help me with the drawing
But will lie under car with tape measure later
Posted 02 November 2009 - 07:43 PM
Been underneath measuring the bar but i really need one to trace out on paper to take more accurate measurements
Its 12.5 mm wide and I just have to draw up the bush mounting brackets easy!!!
Posted 02 November 2009 - 08:19 PM
Its close in dimensions will just have to move a few bolt holes around when i get the finial details but it would be with in 10mm of correct
Posted 02 November 2009 - 10:17 PM
But yes i was using there pictures for ideas on the drawing
Posted 02 November 2009 - 10:46 PM
Here's a better picture.
Would be interesting to see the stress results Stevo will be doing with a bar with holes compared to one without.
Posted 03 November 2009 - 12:46 AM
My professional FEA software (Strand7) is on the fritz on my PC, so I've used Simulxpress which is a small FEA package within solidworks. I've applied 1kN on each of the bolt holes for the diff, which is an overestimate of forces involved, and then restrained the two large bolt holes on either end.
Since I do not know the size of the forces involved I am not able to give you accurate figures for the stress, but I will be able to use the ‘guessed load’ to qualitatively show you the highest stress areas. This will allow you to compare one design to another by applying the same load and see which has the highest stresses.
In other words, the stress analysis is only useful if you have more than one model for me to test. Knock up another design when you get a chance and I'll apply the same loads and see how it compares.
I've attached the results of the FEA.
Posted 03 November 2009 - 03:06 AM
Posted 03 November 2009 - 03:37 AM
Posted 03 November 2009 - 05:54 AM
Also i will increase reduce the gusset on that hole to leave more metal there so it will be stronger
there is also a torsional force on this part as the top bolt holes are held the bar tries to twist up
Mr camo man
I need to get it right with the holes in there as its a water jet job and as such they cant do depth
I suppose i could do it with out holes at all but it wouldn't look as trick
Posted 03 November 2009 - 07:58 AM
how many other autocad operators do we have here Im not too bad on 2d, but using 3d / revit etc is outa my league !
Posted 03 November 2009 - 09:53 AM
I will change the loading conditions to reflect the torsional force involved. Which alloy were you going to make it out of btw? I need to choose a metal and so far I've just chosen 1060 aluminium alloy.
Eww simulxpress doesn't let you show the stress contours without showing displacement, so I have to show you the deformed model...
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