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...
Tunalover,
I think you raise a good point about reoccurring parts, such as washers, that could be overwhelming. I have heard of many companies using a "stop order" within their codes such that once 3 parts with the same item number are recognized then this item number will be skipped, and the...
Well,
I think the code must be adaptable to the each drawing format. The code will first read the format's grid indices. In my case for a 17x11 in drawing (B-size) this would be from 1...8 on the x-axis to a...h on the y-axis. Once it has established this it will then scan the drawing, or...
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...
Yes, creating a simplified rep is what I am essentially doing by saving a copy then modifying the part. But what my concern is the time required to dumb down a part if I have to go back to the virgin parts that were merged and into the patterns in which I only want a portion of the contents...
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 was hoping to do a Pro-Mechanica or Ansys FEA analysis to determine the mode shapes and resonant frequencies of a board. I will also back this up with a hand calculation of the natural frequency. Both of these task require the Elastic Modulus, poisson's ratio, and density. I would actually...
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...
