2023-10-18 Mechanical Meeting

 Date

Oct 18, 2023

 Participants

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 Goals

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 Discussion topics

Item

Presenter

Notes

Item

Presenter

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 tests

@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:

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!

  • @Evan Janakievski has been working hard on the !

    • Dimensions are more fleshed out now but something weird is happening with Evan’s PDM

  • @Georgia Vachon Westerlund Updates to CAD and some CFD simulation results:

    • 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:

Sketches of design changes
  • @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):

    • Dimension Model used for CFD
    • 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:

    • 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).

  • @Sohee Yoon has taken on the Aero-Panel mounting and it’s looking great! Want to explain your ideas? ?

  • @Jason Li want to share your seat updates? I see some nice sketches in !

  • @Wallace Lee are you still interested in doing ?

 

 

 

 Action items

 Decisions