Windscreen surface

[killer9012]

Hi, I am currently trying to get the surface geometry down for a 1998 honda vtr windscreen. I have started by plotting the outline of the screen on a paper and mesuring varius key points (over 150 points in proe). I have ploted 4 curves for the bottom, top, left and right sides of the screen. I would like to know what My best option as of now would be for making the surface.... I have uploaded what I have done to date.... any ideas are greatly appretiated!2008-11-02_191727_windscreen.prt.zip

 

[mcgowanp]

Cant open it. Your on an Educational version of ProE, may be you could post some screen shots.

 

[[-Skint-]]

Without seeing the model I would have a guess at VSS. I think designengine ( on the forum ) has modelled windscreens in the past, he would be good for tips.


Welcome to MCAD.

 

[tobbo]

Please post some pics! I would guess boundary blend

//Tobias

 

[killer9012]

It needs to blend to the 4 curves in the plane but be 3 demensional passing from the left to the center elevated curve to the right curve.

 

[[-Skint-]]

Wow! Thats not the simple smooth curvature I was expecting to see lol. Firstly it looks symmetrical so trim back the orignal Top sketch to the central Right plane and model 1/2 of it. Your obviously not going to get that complex curvature surfaced in a few commands, your going to have to build it up. I would start by creating "section geometry " from the right - top planes and have a go at Boundary Blends to start off with.

 

[design-engine]

you might ask yourself:
1 am I doing this for fun
2 am I doing this to design a trim around the base
3 am I trying to learn how to create an aftermarket replacement windshield
4 ...

Because each might garnish a different approach.

 

[killer9012]

I am trying to reverse engineer the windscreen for a composite analysis in ansys, and our pro-e teacher was a dink so we didnt retain a whole hell of alot. So If i was to put a smooth curve at an elevated plane above top and did a blend from the top to this plane (the curves) then from that central curve to the one that is in the right plane would this work? It also has to follow the straight line thats in the front/top plane and the curve to the top.

 

[mgnt8]

Remember the old saying: To build may have to be the slow and laborious task -to destroy can be the thoughtless act of a single moment.


(ok , hint - overbuild, cut back)

 

[killer9012]

my latests addition, I cant seen to get the surface that leaves the second curve and connects with the upper most curve to come out as the right shape, it seems to become triangular instead of circular, any ideas how I could keep the surface smooth? I am ok with the bottom part not comming out smooth as it will not be a part of the analysis but is still necessary to apply the correct constraints.

 

[design-engine]

I don't think you have the right approach.I would sugest drawing the wind screen out onto A size bond paper first. Side Front and plan views. And maybe an ISO view. Label each curve you plan on using.

Then go to Pro/ENGINEER and things should be much more clear to you (with respect to plan of attack)

You might also sign up for a surfacing class ASAP... I would not want a design engine surfacing participant to tackle a reverse engineering project before completing at least the fist week of surfacing.Note: http://www.proetools.com/courses/pro_surface/week_long.htm < week long thenthe Advanced import: http://www.proetools.com/courses/pro_surface/advanced_import .htm And this advanced import is for creating parametric geometry from scan data BTW

if you were not using educational version I would take a look and make better suggestions. That is a lot to ask tho for a talk forum like this tho
Edited by: design-engine

 

[killer9012]

before I go any further I would like to know if I make the surface and use a thicken feature would I be able to import it into ansys or does it have to be a solid (protrusions and the like)?