Hello people,
If anybody would want to make a machine from Epoxy Granite, one thing is certain.
They would need to have a vibration table, the vibration table arrange`s the particles of the aggregate, this is neccesery to have a well packed mixture and thus a mix with a low quantity of epoxy. This will result in a stiff total material.
So, if we have the aggregate packing formula right....,
we got the right epoxy and the design of the machine is right, calculations cann be made for a vibration table.
Last couple of days i did some more reading about designing such a table,
made a excel sheet with the calculations from this website:
http://www.decavibrator.com/math.shtml#vi
My maximum weight of epoxy granite machine part is around 25 Kg,
the motor i would like to use is 10 Kg, the weight of the moving parts of the vibrating table is around 30 Kg and the wooden mould is 15 Kg.
This makes a total weight of the vibrating mass of 80 Kg.
The motor spec`s are:
http://cgi.ebay.de/NEU-OLI-Ruttler-N...item53e1a04299
3000 RPM (50Hz)
3,15 Kn centrifugal force
6,22 Kgcm working moment
230V 1 phase operation possible
If i would use this motor with all specs from table/motor and would run the motor full power, this would result in a amplitude in motion off 0,75 mm and a acceleration of 3,8 G. (this is 3000RPM)
If i would let the motor turn at 2000RPM, then the amplitude stays the same and the acceleration would be 1,7 G
What i think i cann conclude from this is:
The max. centrifugal force and rpm that a motor cann deliver in relation with the mass of the vibrated parts, determins the value of the amplitude.
If we juggle with these parameters, we cann determin the acceleration.
Hope somebody cann give me some feedback about this, if i`m on the right track i can procede with a CAD design and do some EEM/fatique analyses, vacation starts in a few days so all the time...
All info is welcome.....
In the attachment the excel-sheet.
Kind regards,
Roy B