2023-10-18 Meeting notes

Intro

Conall Kingshott

• We’re a bit slow now because of reading week and midterms coming up, and that’s alright! Hopefully meeting is reasonably quick.

Flight tess

Conall Kingshott

We attempted a hover test this weekend. We flipped the drone, but the problem has been diagnosed. Not damage on the mechanical front.

More info can be found here:
2023-10-14: Pegasus Hover, ZP3.5 M1, & Pilot Trainning

There will be a flight test this weekend, trying hover again. More info is here:
https://uwarg-docs.atlassian.net/l/cp/xguRBjuH

Shared Spaces Meeting

Conall Kingshott

https://uwarg-docs.atlassian.net/l/cp/RqH5y2Xu

Electronics Cases

Nathan Green

• LTE Case

• VTX / Antenna Case

Frame

Conall Kingshott

No major updates

Antenna Tracker

Arjun Mandair

This is going on a bit of a break for the moment because Arjun is busy and we don’t have other people to support it atm. If anyone has a concern with that, please contact me directly.

Cabin

Alison Thompson

• Cabin design still underway!

• Update from AEAC sync, no opposition to cargo bay in the back

• Evan Janakievski want to talk through skeleton updates? Skeleton My thoughts:

  • My orginal thoughts for seat layout to avoid a middle asile was something like this to allow for a big window in the front, though totally open to nixing that idea in favour of your seat layout (no big window will make assembly easier but may hurt aestheics?) thoughts?

    

  • I’d suggest that where ever we decide to have the cargo/cabin divide we add another 2 vertical CF tubes to give use something to mount hinge and a divider?

  • For simpicity maybe the divide is also where we have the hinge for the passenger cabin and the back standoff is where the hinge for the cargo bay is? Want thoughts on this, particularly Georgia Vachon Westerlund

• Georgia Vachon Westerlund Updates to CAD and some CFD simulation results: https://uwarg-docs.atlassian.net/l/cp/qrpZo69M

  • Following the feedback from last week’s meeting, I made the front/rear panels 2 mm thick and the side panels 4 mm thick

  • Added a 50 mm (length tentative) to the top and bottom of the front/rear panels. This segment will be bent up into the cabin when it is assembled

  • Chose a bend angle of 20 degrees, this angle is tentative pending simulation results.

  • The part files in PDM have been updated in accordance with the design changes shown below:

• Georgia Vachon Westerlund Ran a couple of preliminary aero CFD simulations

  • Took me a while to download and learn the software

  • Created a “control block” with similar dimensions to the cabin to be used as a basis for CFD analysis (CAD available in PDM as well):

  • 

  • Used Ansys fluent to setup meshing, boundary conditions, simulation domain, etc.

  • Results are as follows:

    • Drag coefficient of ~8.61

    • Lift coefficient of 0.00395 (negligible)

  • For future simulations, would like to determine the effect of the 20 degree bend angle on the lift/drag coefficients

  • New model has already been made, just need to run that simulation later this week and compare results to the control block:

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  • Would like to evaluate the relationship between the bend angle and the lift/drag coefficients

  • Would like to evaluate how effective s-ducts would be (a bit more advanced, I’ll need to get more familiar with Ansys Fluent first).

• Aric Quan Want to explain your idea for the aero-panel mounting in Aero-Panel Mounting ? My thoughts:

  • I like this idea so far!

  • What is stopping the pin from sliding out?

  • Alternative to the pin, could do a through bolt and a threaded heat-set insert? tbh this way you may not even need the seconded printed piece that mounts to the panels. bad paint drawing:

    

  • Want to hear what others think about this

• Jason Li any seat updates? Seats

• Wallace Lee are you still interested in doing Cargo Compartment ?