11/01/04 Venno wrote up a more detailed excel chart with a graph showing the deflection vs. weight. Check it out here.
10/30/04 Composite wing with fiberglass at 90° has been tested. Results can be found by clicking here
10/29/04 Click here to see the procedure we use to structurally test the wings by adding a uniform load on them.
10/28/04 Balsa sheet wing structural tests completed. Results can be found by clicking here.
10/27/04 Meeting this week!
From Venno
We'll Have another Structures
Meeting This Friday at 2:00 in 0006. We'll go over the testing procedure and do
some work till about 5 im guessing so stop by. If you can;t make it e-mail me.
Also i have revised the Testing procedure from a point force test to a more
accurate uniform force test. I will be testing this procedure probably tommorow
to make sure that the procedure works and then i'll send out the revised instructions.
If your interested in helping out let me know it'll probably be between 2:20
and 6. If you would like to work on anything let me know and i will open the
room for you. For those of you that have nothing to do let me know.
Thanks
Venno
10/26/04 Gantt Chart ready. Click here to view.
10/25/04 Finished one of the composite wings and still working on balsa wing and other composite wing. Finished release mechanism for the payloads and will begin destructive testing this week.
ΰ Click here for a short video showing the release mechanism and how it works
10/30/04 Preliminary deadlines for use in Gantt chart can be found here
10/29/04 Friday afternoon meetng minutes from Mark D.
Hey kids, Today Dave and I took an inventory of the
propulsions
items in the DBF room. Our count of said items are
attached in the spreadsheet. From these counts we
have to determine what we need to order. As of now we
have a meeting planned for Wednesday at 7:30p. If
this does not work for anyone please let me know. We also calculated the
coefficient of friction for the
test stand and came up with a value of .042. I will
go over how this number was derived in the meeting. Its definitely not
complicated, but I want to show
everyone just to make sure everyone agrees with the
method. If there had to be research completed please
try to bring it with you for Wednesday. (Patrick, you
don't have to ask Prof. Dannenhoffer about the angular
velocity and torque quesiton, it will be irrelevant to
our tests as you had stated, thanks.) If you have any
questions, let me know, and if Wednesday doesn't work,
also let me know. I could still use some of your
screen names also. Thats it. Thanks everyone.
-Mark
10/28/04 Meeting minutes from Mark D.
Hey all, First off I'd like to thank Patrick for
doing a wonderful job on the engine test stand. It is definitely going to be a huge
asset for the propulsions team and DBF as a whole. Here's a breakdown of what
people are going to be doing the next week in research.
Mark - Gant Chart, Discussion with team leaders on already completed research,
and discussion with Prof. Dannenhoffer on directions and tasks the propulsions
team should have
Patrick - Check out the Graupner Motor website, hopefully decifer it better
than I could, http://www.graupner.de/englisch/index.asp
Jason - Research dynamometers, pricing, would one be useful for the propulsions
team, how reliable
Dave - in charge of the inventory of propulsions items in the DBF room, will be
responsible for when need to order new materials
Thanks to those who attended the meeting. There will be another meeting this
Friday at 4:30p in the DBF room to check out what kind of equipment we have to
work with for testing. Counting and organizing motors, batteries, and props
will be the primary goal of this meeting. If you cannot make it please let me
know.
And one last quick item. The DBF webiste is up. I definitely recommend checking
it out as it will have information and updates pertaining to the propulsions
group as well as the other groups. If you have ideas that pertain to another
group do not hesitate to give them your input, rational ideas will not be
dismissed without proper consideration.
10/26/04 Meeting this week!
From Mark DAprile:
Hey All, There will be a propulsions meeting at 5pm
on
Wednesday in Link 201? (meaning whichever room is the
computer room on the second floor of Link Hall). This
is an organizational meeting to inform everyone our
goals as the propulsions group. If you cannot make
this meeting or have no interest in being a member of
the propulsions group please let me know. It makes me
life a lot easier if I know ahead of time if no one is
going to attend a meeting. Actually, if you can
attend also let me know. Thank you in advance for
your response. I hope to see you all Wednesday.
-Mark