The post whore thread.

Printable View

10-04-2018, 23:15
ChickNorris

Look Pa! It's wiggling again!
10-04-2018, 23:21
Great-Kazoo

Quote:

Originally Posted by ChickNorris

Acoustic excitation produced by jet-engine effluxes was simulated in a progressive wave tube (PWT) facility with a computer-based control system. The PWT siren is driven by a signal generated numerically in a PC and then converted into analog form. Characteristics of the acoustic pressure measured by a microphone are analyzed in digital form and compared with those prescribed for simulation. Divergence is compensated by immediate modification of the driving signal and this action is repeated in the form of iterative process until the test specification is attained. Typical power spectral density (PSD) shapes with maxima at low and high frequencies were simulated. A "tailoring" approach has been also achieved when a test specification was determined directly from field measurements for the particular aircraft under consideration. Since acoustic pressure signals of high level differ from the Gaussian random process model, particularly in terms of asymmetric probability density function, a method has been developed to make the driving signal also non-Gaussian by simulating skewness and kurtosis parameters of the APWT acoustic excitation simultaneously with PSD control.

: P

Another example of why i stopped doing caffeine .
10-04-2018, 23:25
ChickNorris

Quote:

Originally Posted by Great-Kazoo

Don't. Priority mail them to me.

Pm your addy. 1 dozen
10-05-2018, 00:54
Mazin

Quote:

Originally Posted by ChickNorris

Look Pa! It's wiggling again!

Usullay that happens when you fiddle with it [Coffee]
10-05-2018, 06:59
fly boy

early bird [zombie1]
10-05-2018, 14:46
OtterbatHellcat

I'm trying to figure out how to get a video from my phone so I can post it.

Electronico bullshit is getting in the way, it's my first attempt, …..I might figure it out before the weekend is over. :)
10-05-2018, 15:38
OtterbatHellcat

I'm going to find something else to do....mostly because a hammer is too easily obtainable at this particular junction.
10-05-2018, 15:46
OtterbatHellcat

On a lighter note, the dual rod 4x4 shifter that was on the married C6/205 transfer case was basically useless for the Dana 24 I'm using. So, I dismantled it and began welding up a more simple 4L-N-2H-4H lever using 3/16 plate steel and some 3/8's inch solid rod. I'm gonna have to just make the damn thing.

Nothing sends you to fabrication 101 faster than shit like this.
10-05-2018, 16:02
ChickNorris

I like having a valid excuse to buy new tools.
10-05-2018, 16:30
Irving

Upload it to YouTube first.