I've read elsewhere that it's generally not a good idea to create any external references (part to other part references) to anything that isn't published.
So in CATIA's Part Infrastructure Settings, should I keep enabled the "Keep Link with selected object" and "Restrict External selection...
I'm a student working on designing a UAV and I'm currently working on figuring out preliminary estimates for most structural loads. I'm looking for reference for the load factors experienced by UAVs designed to belly land.
Examples of UAVs that belly land are the Lockheed Martin Stalker, and...
In a given CATIA assembly, I have my master geometry in a part.
1) When publishing sketches, lines, and edges for other parts to use, should I publish into the master geometry part level or publish to the assembly level?
How can I estimate the deflection at the center of a simply support plate (and a sandwich one) with multiple points but same intensity of load application?
The points of application are symmetrical and form the shape of a rectangle and the loading at each point is the same.
An approximation by...
Shown above is the fillet of two surfaces. There's a small surface in between the two curves designated by the red arrows. How can I remove that small surface by merging the two curves?
I want to create an aircraft empennage which is blending in with the vertical tail as illustrated by the following picture.
I tried doing something similar but the surface isn't smooth as shown by the attache picture with zebra stripes.
What am I doing wrong?
Ideally, I want to model an...
There are lots of resources for structural analysis using FEA but I don't want to even dabble with FEA until I can confidently get ballpark answers the old fashioned ways (Microsoft excel, pen and paper, calculator, etc).
Any resources for that?
Here's what I'm looking for
1) Resources for...
Yes, total beginner question.
Why do many introductory or overview texts on composite materials focus primarily on unidirectional fabrics while giving minimal coverage to bidirectional? They focus a lot on undirectional composites and base a lot of the derivations and calculations on the...
How do you folks make a joggle with composite materials in CATIA?
What I have so far are surfaces defining an airplane wing's leading edge. I've split the surface into two parts, top and bottom. I've set up the layup on the top half already. On the bottom half, that's where I need to create a...
Using the following tutorial and the macros that came with CATIA, I was able to import airfoil data points into CATIA from which I created a curve in a sketch. How can I manipulate the curve and scale it.
https://www.youtube.com/watch?v=nP_gErfA5IQ
For example, while preserving the shape, I...
In my model made in CATIA V5-6R2015, I've set the draping direction for the Plies Group to up along the positive z axis of my axis system.
However, when I create a ply, then explode it, I notice that its draping in the wrong direction. When I double click on the explode plied it says "Ply...
I've just started studying composites design. To get a better idea of how the stuff I learn fits into the big picture, it'd be great if someone could give me just a brief overview of the process of designing a fuselage with an arbitrary shape (not necessarily a simple circle).
1) Starting from...
So I have a spline in a sketch. I then want to draw a line from a point to that spline. Alternatively, I draw a line then make one point of that line coincident with the spline. But when I zoom in to the point where the line should be touching the spline, I notice that in actuality, the line...
Some of you especially those who do work in aircraft structures may be familiar with Bruhn's Analysis and Design of Flight Vehicle Structures. I've heard great things about the book but was also told that it was written for metal structures.
Is anyone familiar with any books written in a...
I am modeling a aircraft fuselage for conceptual design work. First, I make the side view sketch to act as guide cures. Then I made a top view sketch for just the left side of the fuselage. After I make the relevant lines, I mirror them to the other side. Following this, I make cross curves that...
I am working on a aircraft conceptual design project and am at the stage where I need to work on the layout and configuration design of the aircraft. To help out with this, I'm been using CATIA however probably not as well as it should be used.
Note that because I am only in the conceptual...
When I try to select the first curve, I instead end up selecting the entire sketch of that cross curve. When I then select the second curve, I select just the curve I need and not the entire sketch. Why is this happening?
I'm a novice in CATIA right now. In CATIA while working a sketch, I can't have my cursor snap to a point or edge on other sketches or features. Is there some button I have press while sketching if I want to do this? Alternatively, I'd want to be able to select edges and points of other sketches...
