Many thanks Greg.
May I ask if there's more efficient way to export a/car results to Matlab other than spreadsheet and manually picking results data?
Also - is there a way to find the script (and testrig) used in a/car to execute this simulation? Scrolling through a/car folder didn't help...
Good day everyone.
I would like to model "quasi-static" simulations in Simscape/multibody. I created a vehicle model. Works perfectly well in shaker rig type simulations but I would also like to apply lateral/longitudinal accelerations (using variable gravity/time varying option within...
Good day everyone,
In A/Car there's an option to to do famous (due to Milliken's book) force moment method analysis. While it seem to work as expected, I can't figure out how to get that yaw moment diagram (yaw moment on y-axis and lateral acc on x-axis). Does anyone know how to do it?
Also...
Hi All,
I'm having a problem with exporting flat pattern (Composites Design) in DXF format. Thing is that everything worked fine but from some point it started exporting "empty" DXF file with no contour (annotations are still there). When I tried checking older parts/files where export was...
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for n=1: 5
[FM,error] = lsqcurvefit('splane2_fit',FM0 ,freq ,heave_gain,[],[],options);
heavesys =tf([FM(1:2 )],[FM(3:4) 1 ])
FM0=FM+ .001*rand(1);
end
I added above code to this live script:
[h_az_tf,n]=tfestimate(act_az,heave_az,winsize,overlap,nfft,Fs)...
Thanks Cibachrome,
Thing is that requests in A/Car are predefined and it is a bit too complicated to redefine them atm. So I set the units/scaling manually as can be seen in DataImport.mlx that I uploaded.
Thank you,
Ted
Here's processing live script. There are also similar live scripts for Pitch, CPLV and tire deflection.
Thank you,
Tedhttps://files.engineering.com/getfile.aspx?folder=89060b77-7edd-4c02-a54d-d9872c6e00fd&file=Heave_AccCompare.mlx
In fact I was doing it differently:
tfout=tfestimate(usual stiff in here)
tfMag=abs(tfout)
tfPhase=angle(tfout)*57.3 to approximate phase in deg.
Then plot the above as two separate plots.
After rescaling Adams signals this gives me reasonable results with heave.
Doing it the way you...
Thank you Greg,
That's what I'm doing now and with some fiddling with signal(exported from Adams) scaling things are starting to make sense.
Thank you,
Ted
Thank you Greg,
There's definately a scaling mess which I have to fix first.
Regarding your 2nd reply - do you mean plotting abs of tfestimate? I didn't find any other way. May be it's my English playing tricks with me but I couldn't find any other way of plotting other than Db on y axis...
Thank you, IRstuff,
Problem is that this is my 7th day with MatLab and I know very little at this point. It seems to me that conversion to Db is sort of imbedded in tfestimate MatLab function and I can't figure out how to undo the logarithm in the result plot of this function. When I write the...
...didn't allow me to express my question properly.
As far as I understand (please correct me if I'm wrong). Db is a ratio of magnitude of two signals expressed as 20*Log(A2/A1). Is there a way that I can get the results of tfestimate function to be expressed on linear scale?
Thank you,
Ted
I’m doing my very first steps in MatLab (5 days since I had a first look at it).
I’d like to ask for a bit of help:
A bit of pretext: I’m trying to learn about vehicle ride dynamics using Adams car/ride 4 post shaker rig. I created a model representing amg gt4 car and excite the car with chirp...
