Monocoque Modeling 2

Yes, this is the continuous post of the previous one. After the meeting with my supervisor, he rated us (me) good job. However, he's concerned about the strength. I suggested adding the thickness (which makes my life easy during modification), but he said it'll make the thing a lot heavier... and leave it to us to figure out the solution.

It took me another tough day to modify the monocoque. Yesterday, I worked from 11 a.m (straight after meeting) until midnight 3 a.m. Of course, there're lunch and dinner break. If you wonder why it takes so long, I admit I suck in Pro/E! The modified monocoque doesn't even look any different from outer... sad.

Modified assembly:

Lets start with the front nose again. Basically, the front nose will experience a lot of direct impact at the tip, so reinforcements are most effective there. Using the same method as my Underground Storage Tank, ribs are added inside. The side rectangular hole is a space reserved for the wheel arms.

Cross-section view at the right:

I was just doing this a moment ago. When I'm doing the rib at the middle cross-section, I cut it and do reference axis for easier drawing. Then, the screen turned out to look like a fish! So I took a bit of my time to have fun with it.

Accidentally made a fish with Pro/E:

The cockpit is easy. He just wanted to minimize the stress concentration at the connecting part with the front nose. A curved rib will just do the job.

Added curved-rib on cockpit:

Here comes the most disastrous part, the side intake port. It takes the most side impact. Thus, vertical ribs are crucial. Small fillet holes are made at the back to reduce trapped air that causes drag. Because of it's irregular shape, protrusion of the ribs are really tough!

Back view and cross-section view:

Same case as the front nose. Due to different corss-section area, every rib requires a datum plane to sketch. Thus, the drawing became such complicated. Modifying this part alone took me the whole night.

Full-plane view:

After assembly, I activate all the planes to have a look how messy it was. Oh gosh, what have I just done... this is incredibly complicated. For those who are good in Pro/E, this might be nothing, but for me this is like... Wow! Undeniable, I'm mentally and physically tired but I do learn a lot more in using Pro/E.

Assembly view:


"Do not let your hearts be troubled. Trust in God."
-John 14:1-

When I became weary and exhausted, the mind will always stray further from God. But The Lord is good, he sends his servants to help you. One might not know what good deeds they have done, but by obeying the holy spirit, it helps another brother in Christ to get through. Thank You Lord for not giving us up in any condition, although we had fail You. In Jesus name I pray, Amen.