Docking parts and frequencies?

[SDIR]

While I was installing two new hab modules for my Mun space station, the tug and one of the modules started wobbling uncontrollably. The wobble did not occur when I had both hab modules attached to the tug, only when one of the modules was already installed and I was repositioning the tug to install the other. Could this be a result of my S.A.S. trying to correct at the frequency of my tug? And is there any way to dampen the wobble?

Edited June 21, 2013 by SDIR

[Sirrobert]

Turn of SAS could fix it.

Time warp also freezes all physics, so if it was just a wobble cause you hit it to much, time warp can stop it before the thing shakes itself apart. It MIGHT cause the entire thing to fall apart though, if the wobble is frozen in the wrong way. Not likely, but possible, so keep that in mind.

I'm not sure what you mean with frequency though. As far as I know, ships resonate by themselves

[NoMrBond]

The problems with SAS/ASAS fighting between various systems on one structure producing rotational and/or corrective power was in the latest weekly

I’ve been working on new SAS / ASAS behavior for the last week. We’re aiming to reduce or eliminate the oscillations that happen in the current system. We’re also removing the automatic torque from command pods and replacing it with a reaction wheel system. The new reaction wheels will actually require power to operate.

So hopefully there will be an official fix soon.

I saw a SAS/ASAS editor somewhere as well so you could adjust the amount of force (Ki/Kp/Kd values) being used by your systems too, sorry I can't seem to find it though.

[CaptainKipard]

Using quantum struts at docking locations will eliminate almost all of the wobble, even with SAS on. I keep my station parallel to kerbins rotational axis this way without any problems.

[DMagic]

This could also be related to an issue that causes uncontrollable rotation when docking sometimes. It seems to be caused by parts clipping together, but it's not always easy to figure out where exactly the problem is.

Whenever this happens to me I just go to the tracking center then back again. This always stops any weird rotation or wobble that happens after docking (or any other time).

[Sirrobert]

This could also be related to an issue that causes uncontrollable rotation when docking sometimes. It seems to be caused by parts clipping together, but it's not always easy to figure out where exactly the problem is.

Whenever this happens to me I just go to the tracking center then back again. This always stops any weird rotation or wobble that happens after docking (or any other time).

Alternativly you can quicksave and than quickload. Though it won't always let you if the wobble is to much

[SDIR]

So far, the problem was that the ASAS correction was moving at the same resonance frequency as the tug and ship. Quicksaving and loading didn't seem to have much of an impact and there were no clipped parts, and only contained one ASAS module. Quantum I struts sounds good though. I might look into doing some file editing, but it would be nice if there was some sort of slider to determine the sensitivity of the ASAS, like tuning it up high for fast corrections and low for something like the avionics package.