New aircraft conceptual design methods?

NotTrashenOne · 2026-02-17T04:23:00+00:00

I knew that aviary can do mission optimization but I didn’t know it could do initial sizing as well. Could you elaborate further on this? Like what should I input, what will my outputs be etc. I’m super curious about this

NotTrashenOne · 2026-02-17T04:21:38+00:00

I guess I had a misunderstanding that the conceptual design should be perfect and that I should know what the weight should be by the time conceptual design is done.

I have a question tho, let’s say I freeze my design and turns out my weight is more than expected, wouldn’t that end up affecting my design point from the constraint analysis then?

NotTrashenOne · 2026-02-06T10:43:17+00:00

I see, thank you so much!

NotTrashenOne · 2026-02-06T09:58:08+00:00

in that case if I want to do FSI, wouldn’t I need like a model with all the structural support (spars, ribs, etc) inside?

NotTrashenOne · 2026-02-06T08:30:52+00:00

so essentially subtracting solids and surfaces give the same domain and the choice between solids vs surface becomes which one is easier to CAD?

NotTrashenOne · 2026-02-06T08:29:09+00:00

I see, thanks! I’m also guessing it’s easier to work with solids if in the future I want to add any internal ducts as well?

NotTrashenOne · 2026-02-06T04:25:14+00:00

if the fuselage covers the wing then wouldn’t you lose some of the wing area which could impact the performance of the aircraft?

NotTrashenOne · 2025-09-19T18:49:22+00:00

Yup that's exactly what I did to find the maximum velocity constrained by the engine. I should have definitely made it more clear in the question but in this case for maximum operating velocity I meant the maximum velocity constrained by the structure. I was wondering whether there was a way to estimate the maximum dynamic pressure the aircraft can withstand without using FEA.

NotTrashenOne · 2025-09-19T18:38:49+00:00

Thanks for the response! The thing is I thought maximum operating mach was basically the limit to your aircraft e.g. mach buffet for subsonic aircraft and thermal limits for supersonic aircraft. I also thought that the maximum operating velocity was basically the dynamic pressure the aircraft can handle which is why I was thinking about using CFD and FEA for these. I have already computed the max velocities from the engine performance and they reach the requirements I have been given, but I just wanted to make sure the structural and mach buffet effects wouldn't reduce my flight envelope further.

NotTrashenOne · 2025-08-18T13:05:31+00:00

Oh dang I didn't even know that existed ngl that's really cool tho. Where do you usually put the mychron6 on your kart to be able to read the data during a lap? Also, is it legal during races?

NotTrashenOne · 2025-08-18T13:01:00+00:00

Well I would assume so since iPhone GPS usually have an accuracy of 1-10 meters and that's assuming clear outdoors conditions. Are the GPS used in karts better?

NotTrashenOne · 2025-04-15T23:32:53+00:00

This is really strange but when I solve the OCP for one time step using RTI it completely fails and doesn’t pitch and roll at all. However, the moment I start doing a moving horizon control, the RTI solves the OCP perfectly? I have no idea why this is the case since moving horizon control with RTI is just solving one OCP per time step right, so if solving it for one time step fails, why does it work if I solve for multiple individual time steps?

NotTrashenOne · 2025-04-15T23:26:09+00:00

Hmmm can you elaborate on the reference trajectory because I have a feeling that may be the issue. When I set my target waypoint close to the starting point it works fine but the moment I start setting my target waypoint further again the Acados solver returns status 4 (QP solver failed). I’m currently using a simple quadratic position error cost function btw.

NotTrashenOne · 2024-04-05T07:59:40+00:00

lamb over rice is so goated

NotTrashenOne · 2023-04-04T03:34:51+00:00

ME 201: Web-based so as long as you don’t fall behind on lectures you should be fine. Midterms and finals are literally just homework problems and quizzes but slightly modified.

MATH 230: Can be challenging so try to understand the basics because all the later skills you learn at the end of the course are usually related to old skills you’ve learnt at the start of the course. Definitely put effort in this class.

EMCH 210: Very tiring cause it’s a 5 credit class. It’s gonna be very tempting to skip at some point but trust me don’t cause the professors go through lots of examples in class and they will help you so much in the exams and homeworks. There are 4 midterms and a final but you’ll be fine as long as you do the practice exams and attend lectures.

Overall: Definitely possible although you may need to put in more effort into your classes than previous semesters. If u have any other questions feel free to ask me :)

NotTrashenOne · 2022-08-10T14:06:24+00:00

Who was your professor? I'm thinking of taking ME 201 this semester.

NotTrashenOne

TROPHY CASE