I am modeling a piezo electric slab with coupled field elements. I have activated the following dof's: ux,uy,uz,and volt. I believe that one of my constitutive equation then should be the following:
electric flux =(stress*compliance)+(piezo matrix*E field)
in the absence of electric flux...
I am currently using coupled field elements to model a beam made of PZT. Using a force input on the beam (opposite of the fixed end) I have seen non-zero voltages at all the nodes. Now, I would like to simulate the presence of electrodes on both the upper and lower surface of the beam. I want...
I am hoping to pattern a feature that directly proportionally (linearally) reduces in size as the pattern advances across a straight line sketch. What is the best way to make this happen? Should I define the original feature's dimensions using equations? Thanks,ProEdj
Hello,
It seems that when I run a harmonic analysis the magnitude all of my applied forces including gravity are based on a sin function. I am fine with this for gravity, because I am essentially performing a vibrational analysis at a set frequency using gravity as my vib load. My applied...
Hello Everyone,
Has anyone came across a code that reads where parts exist on an a pro-e assembly drawing then can output that grid zone into a table in the BOMS? When I say grid I am refering to the numbers along the bottom and the letters on the side of a drawing that divide a drawing into...
Hello Everyone,
Has anyone came across a code that reads where parts exist on an assembly drawing then can output that grid zone into a table in the BOMS? When I say grid I am refering to the numbers along the bottom and the letters on the side of a drawing that divide a drawing into zones...
Hello,
I am attempting to do some mechanica analysis on a complex pro-e part that was created using merged objects and numerous hole pattens that have significant instances. I need to simplify the part so this analysis can be done. I have saved a copy of this part and called it something...
I am doing an modal analysis on a circuit board that sits on a gap pad. This gap pad is designed to dampen vibration and also produce sufficient conduction to cool the board. It seems that applying a sping to the board is a logical way to represent this, yet I do not see a suface to surface...
I have seen quite a wide range of Elastic Modulus values for polyimide pwb boards. Does anyone know of a reliable source that I can utilize to do a vibration analysis on a printed circuit board.
Thanks
What is the best way to call out a slot? I have used basic dimension to reference the true center of the slot from 2 perpendicular datums. Then I called out the width of the slot and the height (the length from one tangent line off the full radius to the other tangent line) using standard...
When calculating the stresses created when press fitting dowel pins how important is it to stay within the yield stregth of the material? I am having a difficult time achieving this when using 316 stainless steel plates and pins. I have speced my pre drilled dowel pin hole all the way down to...
Hello Everyone,
When applying gravity loads in Pro Mechanica, it seems logical to me to select a unit system that that uses mass/length^3 units not force/length^s. Therefore when operating in English units I would like to use slugs/ft^3 for density. I feel like using pounds already...
Hello,
I was hoping to generate a group of parts that are defined by the same features but possesing different dimensions. For instance, a group of screws with the same head size, thread pitch, and shaft diameter, but with variable shaft lengths. Is it possible to generate this group of...
I have a complex cavity in one part and would like to generate a new part that has the same geometry as the cavity. I imagine that this procedure is very common in mold design...except instead of going from the mold positive to the mold, I already have the mold and would like to create the part...
Hello,
I am attempting to calculate the center of gravity of a complex (numerous materials) assembly. I understand that once I define the proper material and density of each individual part that pro-e can do this for me, however I would like to check this value by doing the calculation long...
I apoligize if this is a silly question, but I hear so much about using surfaces to design aesthetically pleasing products and I am a little confused as to why. How is it possible to design a surface that cannot be defined as the just the boundary of a ordinarry solid.
Thank you for your responses
I am attempting to create a surface model to use for a hydrodynamic analysis. I have a complex assembly that I planned on performing a shrinkwrap, then merging the surfaces. Pro/E is having a difficult time defining the geometry between many of my complex surfaces. Is there an easier way to...
