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mfranz 2007-01-24 16:25:05 +00:00
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34
Docs/README.yasim
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@ -142,7 +142,7 @@ stall: A subelement of a wing (or hstab/vstab/mstab) that specifies the
flap0, flap1, slat, spoiler:
These are subelements of wing/hstab/vstab objects, and specify
the location and effectiveness of the control surfaces.
start: The positition along the wing where the control
start: The position along the wing where the control
surface begins. Zero is the root, one is the tip.
end: The position where the surface ends, as above.
lift: The lift multiplier for a flap or slat at full
@ -300,7 +300,7 @@ gear: Defines a landing gear. Accepts <control> subelements to map
properties to steering and braking. Can also be used to simulate
floats. Although the coefficients are still called ..fric, it
is calculated in fluids as a drag (proportional to the square
of the speed). In fluids gears are not considured to detect
of the speed). In fluids gears are not considered to detect
crashes (as on ground).
x,y,z: The location of the fully-extended gear tip.
compression: The distance in meters along the "up" axis that
@ -308,9 +308,9 @@ gear: Defines a landing gear. Accepts <control> subelements to map
initial-load: The initial load of the spring in multiples of
compression. Defaults to 0. (With this parameter
a lower spring-constants will be used for the
gear-> can reuce numerical problems (jitter))
gear-> can reduce numerical problems (jitter))
Note: the spring-constant is varied from 0%
compression to 20% compression to get continous
compression to 20% compression to get continuous
behavior around 0 compression. (could be physically
explained by wheel deformation)
upx/upy/upz: The direction of compression, defaults to
@ -325,7 +325,7 @@ gear: Defines a landing gear. Accepts <control> subelements to map
generated spring constant. Increase to make
the gear stiffer, decrease to make it
squishier.
damp: A dimensionless multipler for the automatically
damp: A dimensionless multiplier for the automatically
generated damping coefficient. Decrease to
make the gear "bouncier", increase to make it
"slower". Beware of increasing this too far:
@ -340,10 +340,10 @@ gear: Defines a landing gear. Accepts <control> subelements to map
speed-planing:
spring-factor-not-planing:
At zero speed the spring factor is multiplied by
spring-factor-not-planing. Above speed_planing this
factor is equalt to 1. THe diea is, to use this for
spring-factor-not-planing. Above speed-planing this
factor is equal to 1. The idea is, to use this for
floats simulating the transition from swimming to
planing. speed_planing defaults to 0,
planing. speed-planing defaults to 0,
spring-factor-not-planing defaults to 1.
reduce-friction-by-extension: at full extension the friction is
reduced by this relative value. 0.7 means 30% friction
@ -403,7 +403,7 @@ ballast: This is a mechanism for modifying the mass distribution of
weight: This is an added weight, something not part of the empty
weight of the aircraft, like passengers, cargo, or external
stores. The actual value of the mass is not specified here,
instead, a mapping to a propery is used. This allows
instead, a mapping to a property is used. This allows
external code, such as the panel, to control the weight
(loading a given cargo configuration from preference files,
dropping bombs at runtime, etc...)
@ -465,7 +465,7 @@ control-input:
on the right wing.
square: Squares the value before setting. Useful for
controls like steering that need a wide range, yet
lots of sensitiviy in the center. Obviously only
lots of sensitivity in the center. Obviously only
applicable to values that have a range of [-1:1] or
[0:1].
src0/src1/dst0/dst1:
@ -528,14 +528,14 @@ hitch: A hitch, can be used for winch-start (in gliders) or aerotow (in
tow: The tow used for aerotow or winch. This must be a subelement
of an enclosing <hitch> tag.
length: unstreched length in m
length: upstretched length in m
weight-per-meter: in kg/m
elastic-constant: lower values give higher elasticity
break-force: in N
mp-auto-connect-period: the every x seconds a towed multiplayer
aircraft is searched. If found, this tow is connected
automatically, parameters are copied from the other
aircraft. Shoud be set only in the motor aircraft, not
aircraft. Should be set only in the motor aircraft, not
in the glider
winch: The tow used for aerotow or winch. This must be a subelement
@ -692,7 +692,7 @@ rotor: A rotor. Used for simulating helicopters. You can have one, two
flapmin: Minimum flapping angle. (Should normally never reached)
flapmax: Maximum flapping angle. (Should normally never reached)
flap0: Flapping angle at no rotation, i.e. -5
dynamic: this changes the reactions peed of the rotor to an input.
dynamic: this changes the reactions speed of the rotor to an input.
normally 1 (Maybe there are rotors with a little faster
reaction, than use a value a little greater than one.
A value greater than one will result in a more inert,
@ -765,21 +765,21 @@ rotorgear: If you are using one ore more rotors you have to define a
the engine will produce maximum torque. At 100% of
the engine will produce no torque. It is planned to use
YASim-engines instead of this simple engine.
engine-accell-limit: The d-factor of the engine is defined as the
engine-accel-limit: The d-factor of the engine is defined as the
maximum acceleration rate of the engine in %/s,
default is 5%/s.
max-power-rotor-brake: the maximum power of the rotor brake, in kW
at normal rpm (most? real rotor breaks would be overheated
if used at normal rpm, but this is not simulated now)
rotorgear-friction: the power loss due to fritcion in kW at normal
rotorgear-friction: the power loss due to friction in kW at normal
RPM
yasimdragfactor:
yasimliftfactor: the solver is not working with rotor-aircrafts.
Therefore you have to specify the results yourself.
10 for drag and 140 for lift seem to be good starting
values. Although the solve is not invoked for aircrafts
with at least one rotor, you need to specifiy the cruise
and the approach seetings. The approach speed is needed to
with at least one rotor, you need to specify the cruise
and the approach settings. The approach speed is needed to
calculate the gear springs. Use a speed of approx. 50knots.
They do not need to match any real value.