Hi, I'm trying to create more realistic aero for F1 cars in rfactor2. I've did this in Assetto Corsa. using the lut files, which is pretty straight forward. With Rfactor2, this is far more complex... I've tinkered around with Rfactor2 physic's spreadsheet. Yet for the front wing, I was doing 1.1CL max, and 0.183max for drag 1 / 6 ratio, yet on the spreadsheet drag is 0.195? a total 60 slots. 60 slots... 0 - 59 FWDragParams=(0.00305,0.00305,0)? FWLiftParams=(-0.01833,-0.01833,0)? I'm confused with Body Aero also I'm just trying to do front wing 1.1CL, 0.183CD MAX 60 slots --------------FWDragParams=(0.00305,0.00305,1e-5) ---------------FWLiftParams=(-0.01833,-0.01833,1.3e-4) rear wing 1.1CL, 0.366CD MAX 12 slots ---------RWDragParams=(0.0509,0.0509,3.2e-6) ---------RWLiftParams=(-0.0916,-0.0916,0.0021) 1.8CL lift for diffuser (with 2mm and 2mm highest downforce1.8) --------DiffuserBasePlus=(-1.80,-1.0,2,170) 0.600CD bodyfrag. BodyDragBase=(0.38) Yet it seems like I've got more lift and drag then I intended. I don't mind if these are absolutes for now. Then move onto variability later. I would like to see the aero data in game, like wings app in assetto corsa. I've been advised to look into logging plugins. Thanks Tim
I'm not sure if you're understanding what the parameter values mean; are you reading the comments in the skip barber files as a reference? They spell out what most of the parameters do. If you have specific questions on those, they would be easier to answer.
MOD_DEV/user data only file I found of that is SKIPBARBER_CHASSIS (plus auto-generated subsystems).ini.... but doesn't really have that type of data. eg [RigidBody] Name="FRONT_SUBBODY" Mass=185.63399999999996 Inertia=(54.50599214652407,55.02230878124389,21.317841202150674) Position=(0,0,-0.9698960207081122) Orientation=(0,0,0) Reortho=32337 Velocity=(0,0,0) Rotation=(0,0,0) I'm having issue's with the front wing. FWSetting=38 front wing (only 16 slots) 0 - 15? yet the FWRange=(0.5,0.5,60)?...I can see the entire 60 slots in setting file. It's limits it's self from 0 to 15? Rear wing is going over 4 slots? with settings that don't exist in the settings file. It finds " "13" - "16 " " ? RWRange=(0,1,12) RWSetting=7 RWSpecial=(0,"30",,) RWSpecial=(1,"34",,) RWSpecial=(2,"38",,) RWSpecial=(3,"42",,) RWSpecial=(4,"46",,) RWSpecial=(5,"50",,) RWSpecial=(6,"54",,) RWSpecial=(7,"58",,) RWSpecial=(8,"62",,) RWSpecial=(9,"66",,) RWSpecial=(10,"70",,) RWSpecial=(11,"74",,) The frustration.
@timodor moddev\vehicles\skipbarber HDV file with comments. TBC file with comments. TGM file with comments (need to find the right one, there's only 4 to choose from).
I had a look at this, where is the front wing dimensions and it's location? Where is 0,0,0? in Rfactor2? between the wheelbase? I was tinkering with the wheel base yesterday, but it seemed like it's wasn't in the middle. [FRONTWING] FWForceDistrib=(1.0:front_subbody) FWRange=(8, 2, 1) // front wing range FWSetting=0 // front wing setting FWMaxHeight=(0.3) // maximum height to take account of for downforce FWDragParams=( 0.012, 0.00123, 0.000000) // base drag and 1st and 2nd order with setting FWLiftParams=(-0.052,-0.00695, 0.000012) // base lift and 1st and 2nd order with setting FWLiftHeightPlus=(0.05, 0.3, 0.0) // Half,1st,2nd order effects on lift with front wing height FWNegRakeDrag=(-0.00, 0.000, 5.0) // if rake is negative (nose up), use absolute value of rake angle: (coeff*degrees, coeff*degrees^2, maxDegrees) FWPosRakeDrag=( 0.00,-0.000, 5.0) // if rake is positive (nose down): (coeff*degrees, coeff*degrees^2, maxDegrees) FWNegRakeLift=(-0.00, 0.000, 5.0) // if rake is negative, use absolute value of rake angle: (coeff*degrees, coeff*degrees^2, maxDegrees) FWPosRakeLift=( 0.00,-0.000, 5.0) // if rake is positive: (coeff*degrees, coeff*degrees^2, maxDegrees) FWLiftSideways=(0.31) // dropoff in downforce with yaw (0.0 = none, 1.0 = max) FWLiftPeakYaw=(3.0, 1.001) // Angle of peak, multiplier at peak FWDraftLiftMult=1.1 // Effect of draft on front wing's lift response (larger numbers will tend to decrease downforce when in the draft) FWLeft=(-0.22, 0.02, 0.0) // aero forces from moving left FWRight=(0.22, 0.02, 0.0) // aero forces from moving right FWUp=( 0.0,-0.28,-0.020) // aero forces from moving up FWDown=(0.0, 0.28, 0.020) // aero forces from moving down FWAft=(0.0, 0.04,-0.04) // aero forces from moving rearwards FWFore=(0.0, 0.0, 0.0) // aero forces from moving forwards (recomputed from settings) FWRot=(0.10, 0.05, 0.15) // aero torque from rotating FWCenter=(0.00, 0.04,-0.68) // center of front wing forces (offset from center of front axle in ref plane) //FlapDrag=(0.0,0.5) // base drag when activated, multiplier by deactivated drag to add in //FlapLift=(0.0,0.7) // base lift when activated, multiplier by deactivated lift to add in //FlapTimes=(0.1,0.12,0.1,0.13) // visual activation, physical activation, visual deactivation, physical deactivation //FlapRules=(0.5,0.03) // throttle threshold, brake threshold for automatic deactivation
In physics the front wing doesn't have a location or dimensions - it does have a point where the aero is applied, that's FWCenter. 0,0,0 is roughly centre usually, at around floorpan height.
@Lazza In Case of the front Wing Aero, FWCenter 0,0,0 is the Center of the front Axle, as written in the Comment: // center of front wing forces (offset from center of front axle in ref plane) or did i understood you wrong with what you mean with "0,0,0 is roughly centre usually, at around floorpan height"?
To be honest I thought the comment on the FWCenter would explain that fine - I was answering "where is 0,0,0 in rFactor 2" - if he meant for the front wing, then I misled...
It makes sense now, in my mind I was thinking AC, which has dimentions of the wing and the location. This doesn't have dimensions, it's just a point and it's off axle front wheelbase in the center. I guess it's one step at time with me.
That's why i asked, if i maybe misunderstood you, because he posted and talked about the FWing Section.
I'm honestly not sure what else I'm meant to say. I advised him to read the commented files, then you quote the comment to me like I haven't read it - I explain why I said what I said, quoting the question "Where is 0,0,0? in Rfactor2?", which I gave the answer to on a separate line. The first post wasn't just about the front wing, and I answered that question in a general sense - the FWCenter comment explains exactly what the FWCenter reference is. Now you explain, again, why you asked me - but I already know why. I already explained what I said. What do you want?
