Really stuck

alexakasloth · 18 Jan 2009 at 02:35

SoSolid said:
No it is for my own personal enjoyment.

I usually just watch dexter and/or jack it.

Amnesia · 18 Jan 2009 at 03:34

have u tried switching it off then on again ?
or just kick it

Shamikebab · 18 Jan 2009 at 03:35

Atrox Moris said:

$loth said:
I usually just watch dexter and/or jack it.

These both made me laugh, thanks guys

me227 · 18 Jan 2009 at 04:11

Have you tried reversing the polarity?

SoSolid · 18 Jan 2009 at 11:03

I cannot get resonance even when i set the period of the pulse equal to 1 / natural frequency of the concrete. I just get a steady state output. I would have expected the amplitude of the oscillations to increase to infinity.

WantoN · 18 Jan 2009 at 11:48

I recommend a balanced diet and a decent three-day split. Reduce simple carbs. And pneumatic drills.

Also, protein shake.

Ant :cool:

SoSolid · 18 Jan 2009 at 13:14

Thanks for that. I got it to work now, but this is a very basic system I want to make it more complicated. I made an error with my time period but it is sorted now.

DarkShadow · 18 Jan 2009 at 13:16

Atrox Moris said:

LOL

Ben M · 18 Jan 2009 at 13:35

do your own homework.

SoSolid · 18 Jan 2009 at 14:13

Ben M said:
do your own homework.

It is not homework you self indulgent weener. I am trying to better my understanding of Simulink.

petemyster · 18 Jan 2009 at 14:17

seems easy.... i don't understand where the problem is

have you tried making sure you didn't mistake a "2" for a "7"

SoSolid · 19 Jan 2009 at 01:45

Anyone know the natural frequency of tarmac / the road?

crunchee · 19 Jan 2009 at 01:48

Atrox Moris said:

Haha

yantorsen · 19 Jan 2009 at 01:58

SoSolid said:
Anyone know the natural frequency of tarmac / the road?

Pretty low I would have thought, not sure on an exact figure though.

Tom|Nbk · 19 Jan 2009 at 02:02

SoSolid said:
It is not homework you self indulgent weener.

LMFAO! Love it.

DUNDOIT · 19 Jan 2009 at 02:12

SoSolid said:
Anyone know the natural frequency of tarmac / the road?

Im guessing pretty damn high. The atoms are locked to each other quite strongly, meaning any plastic deformations will repidly propagate

go for 20Khz

yantorsen · 19 Jan 2009 at 02:14

DUNDOIT said:
Im guessing pretty damn high. The atoms are locked to each other quite strongly, meaning any plastic deformations will repidly propagate

go for 20Khz

But concrete has a really low natural frequency, so I would have thought that tarmac would to?

SoSolid · 19 Jan 2009 at 02:29

Concrete is about 10 hz

Howard · 19 Jan 2009 at 09:08

SoSolid said:
Anyone know the natural frequency of tarmac / the road?

4

G|mp · 19 Jan 2009 at 09:11

SoSolid said:
It is not homework you self indulgent weener. I am trying to better my understanding of Simulink.

LoL