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Calidus-FDM.xml
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Calidus-FDM.xml
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<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="http://jsbsim.sourceforge.net/JSBSim.xsl"?>
<fdm_config name="Calidus" version="2.0" release="ALPHA"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://jsbsim.sourceforge.net/JSBSim.xsd">
<fileheader>
<author> Aeromatic v 0.91 </author>
<filecreationdate> 2011-03-03 </filecreationdate>
<version>$Revision: 1.10 $</version>
<description> Models a Calidus. </description>
</fileheader>
<!--
File: Calidus.xml
Inputs:
name: Calidus
type: light single
max weight: 1100.0 lb
wing span: 26.0 ft
length: 18.0 ft
wing area: 530 sq-ft
gear type: tricycle
retractable?: no
# engines: 1
engine type: piston
engine layout: aft fuselage
yaw damper? no
Outputs:
wing loading: 2.08 lb/sq-ft
CL-alpha: 5 per radian
CL-0: 0.25
CL-max: 1.4
CD-0: 0.028
K: 0.04
-->
<metrics>
<wingarea unit="FT2"> 50.00 </wingarea>
<wingspan unit="FT" > 18.00 </wingspan>
<wing_incidence> 2.00 </wing_incidence>
<chord unit="FT" > 2.78 </chord>
<htailarea unit="FT2"> 18.00 </htailarea>
<htailarm unit="FT" > 6.00 </htailarm>
<vtailarea unit="FT2"> 24.00 </vtailarea>
<vtailarm unit="FT" > 6.00 </vtailarm>
<location name="AERORP" unit="IN">
<x> 84.0 </x>
<y> 0.0 </y>
<z> 20.0 </z>
</location>
<location name="EYEPOINT" unit="IN">
<x> 28.0 </x>
<y> -18.0 </y>
<z> 45.0 </z>
</location>
<location name="VRP" unit="IN">
<x> 84.0 </x>
<y> 0.0 </y>
<z> 10.0 </z>
</location>
</metrics>
<mass_balance>
<ixx unit="SLUG*FT2"> 253 </ixx>
<iyy unit="SLUG*FT2"> 215 </iyy>
<izz unit="SLUG*FT2"> 437 </izz>
<emptywt unit="LBS" > 580 </emptywt>
<location name="CG" unit="IN">
<x> 84.0 </x>
<y> 0.0 </y>
<z> 10.0 </z>
</location>
</mass_balance>
<ground_reactions>
<contact type="BOGEY" name="NOSE">
<location unit="IN">
<x> 15.35 </x>
<y> 0.00 </y>
<z> -31.00 </z>
</location>
<static_friction> 0.80 </static_friction>
<dynamic_friction> 0.50 </dynamic_friction>
<rolling_friction> 0.02 </rolling_friction>
<spring_coeff unit="LBS/FT"> 1000.00 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 600.00 </damping_coeff>
<max_steer unit="DEG"> 8.0 </max_steer>
<brake_group>NONE</brake_group>
<retractable>0</retractable>
</contact>
<contact type="BOGEY" name="LEFT_MAIN">
<location unit="IN">
<x> 95.30 </x>
<y> -28.35 </y>
<z> -33.00 </z>
</location>
<static_friction> 0.80 </static_friction>
<dynamic_friction> 0.50 </dynamic_friction>
<rolling_friction> 0.02 </rolling_friction>
<spring_coeff unit="LBS/FT"> 1500.00 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 900.00 </damping_coeff>
<max_steer unit="DEG">0</max_steer>
<brake_group>LEFT</brake_group>
<retractable>0</retractable>
</contact>
<contact type="BOGEY" name="RIGHT_MAIN">
<location unit="IN">
<x> 95.30 </x>
<y> 28.35 </y>
<z> -33.00 </z>
</location>
<static_friction> 0.80 </static_friction>
<dynamic_friction> 0.50 </dynamic_friction>
<rolling_friction> 0.02 </rolling_friction>
<spring_coeff unit="LBS/FT"> 1500.00 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 900.00 </damping_coeff>
<max_steer unit="DEG">0</max_steer>
<brake_group>RIGHT</brake_group>
<retractable>0</retractable>
</contact>
<contact type="STRUCTURE" name="TAIL_BUMPER">
<location unit="IN">
<x> 129.00 </x>
<y> 0.00 </y>
<z> -14.00 </z>
</location>
<static_friction> 0.80 </static_friction>
<dynamic_friction> 0.50 </dynamic_friction>
<spring_coeff unit="LBS/FT"> 600.00 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 900.00 </damping_coeff>
</contact>
</ground_reactions>
<propulsion>
<engine file="Rotax914UL">
<location unit="IN">
<x> 156.00 </x>
<y> 0.00 </y>
<z> 0.00 </z>
</location>
<feed>0</feed>
<thruster file="prop">
<location unit="IN">
<x> 125.0 </x>
<y> 0.0 </y>
<z> 27.0 </z>
</location>
<orient unit="DEG">
<pitch> 0.00 </pitch>
<roll> 0.00 </roll>
<yaw> 0.00 </yaw>
</orient>
</thruster>
</engine>
<engine file="Pre-Rotator">
<location unit="IN">
<x> 84.00 </x>
<y> 0.00 </y>
<z> 0.00 </z>
</location>
<feed>0</feed>
<thruster file="rotor">
<location unit="IN">
<x> 84.0 </x>
<y> 0.0 </y>
<z> 85.7 </z>
</location>
<orient unit="DEG">
<pitch> 90.0 </pitch>
<roll> 0.0 </roll>
<yaw> 0.0 </yaw>
</orient>
<sense>0</sense>
</thruster>
</engine>
<tank type="FUEL" number="0">
<location unit="IN">
<x> 101.0 </x>
<y> 0.0 </y>
<z> 6.0 </z>
</location>
<type>AVGAS</type>
<capacity unit="LBS"> 62.00 </capacity>
<contents unit="LBS"> 62.00 </contents>
</tank>
</propulsion>
<system file="rotor"/>
<flight_control name="FCS: Calidus">
<property value="0.0"> fcs/x-col </property>
<property value="0.0"> fcs/x-lat </property>
<property value="0.0"> fcs/x-lon </property>
<property value="0.0"> fcs/x-ped </property>
<channel name="longitudinal">
<summer name="fcs/longitudinal-cmd-trim-sum">
<input> fcs/elevator-cmd-norm </input>
<input> fcs/pitch-trim-cmd-norm </input>
<clipto>
<min> -1.0 </min>
<max> 1.0 </max>
</clipto>
</summer>
<lag_filter name="fcs/longitudinal-lag">
<input> fcs/longitudinal-cmd-trim-sum </input>
<c1> 20.0 </c1>
</lag_filter>
<pure_gain name="fcs/longitudinal-gain">
<input> fcs/longitudinal-lag </input>
<gain> 0.1500 </gain>
<output> fcs/x-lon </output>
</pure_gain>
<summer name="fcs/longitudinal-ctrl-rad">
<input> fcs/x-lon </input>
<bias> 0.0000 </bias>
<clipto>
<min> -0.7 </min>
<max> 0.7 </max>
</clipto>
<output> propulsion/engine[1]/longitudinal-ctrl-rad </output>
</summer>
</channel>
<channel name="lateral">
<summer name="fcs/lateral-cmd-trim-sum">
<input> fcs/aileron-cmd-norm </input>
<input> fcs/roll-trim-cmd-norm </input>
<clipto>
<min> -1.0 </min>
<max> 1.0 </max>
</clipto>
</summer>
<lag_filter name="fcs/lateral-lag">
<input> fcs/lateral-cmd-trim-sum </input>
<c1> 20.0 </c1>
</lag_filter>
<pure_gain name="fcs/lateral-gain">
<input> fcs/lateral-lag </input>
<gain> 0.0490 </gain>
<output> fcs/x-lat </output>
</pure_gain>
<pure_gain name="fcs/lateral-col-mix">
<input> fcs/x-col </input>
<gain> -0.228 </gain>
</pure_gain>
<summer name="fcs/lateral-ctrl-rad">
<input> fcs/x-lat </input>
<input> fcs/lateral-col-mix </input>
<bias> -0.0037 </bias>
<clipto>
<min> -0.7 </min>
<max> 0.7 </max>
</clipto>
<output> propulsion/engine[1]/lateral-ctrl-rad </output>
</summer>
</channel>
<channel name="Yaw">
<summer name="Rudder Command Sum">
<input>fcs/rudder-cmd-norm</input>
<input>fcs/yaw-trim-cmd-norm</input>
<limit>
<min> -1.0 </min>
<max> 1.0 </max>
</limit>
</summer>
<aerosurface_scale name="Rudder Control">
<input>fcs/rudder-command-sum</input>
<domain>
<min>-1.0</min>
<max> 1.0</max>
</domain>
<range>
<min> -0.25 </min>
<max> 0.25 </max>
</range>
<output>fcs/rudder-pos-rad</output>
</aerosurface_scale>
<aerosurface_scale name="rudder normalized">
<input>fcs/rudder-pos-rad</input>
<domain>
<min>-0.25</min>
<max> 0.25</max>
</domain>
<range>
<min>-1</min>
<max> 1</max>
</range>
<output>fcs/rudder-pos-norm</output>
</aerosurface_scale>
</channel>
</flight_control>
<aerodynamics>
<!-- ============================================================
Rotor properties used below
============================================================ -->
<property value= "13.78"> metrics/rotor/R-ft </property> <!-- rotor radius -->
<property value= "8.08"> metrics/rotor/Area-ft2 </property> <!-- chord * radius * numBlades -->
<property value= "0.0135"> metrics/rotor/solitity </property> <!-- blade-area / disk-area -->
<!-- ============================================================
Reference properties and non dimensional velocities
============================================================ -->
<property value= "8.08"> aero/ref/area-ft2 </property> <!-- solitity * Area -->
<property value= "111.34"> aero/ref/volume-ft3 </property> <!-- solitity * Area * Radius -->
<property value= "250.00"> aero/ref/vtip-fps </property> <!-- rotor tip speed, Omega_mr * Radius -->
<function name="aero/HIhat-ps"> <!-- rho*solitity*Area * Omega*R * R -->
<description> Dynamic momentum, see /BR59/. </description>
<product>
<property> atmosphere/rho-slugs_ft3 </property>
<property> metrics/rotor/solitity </property>
<property> metrics/rotor/Area-ft2 </property>
<property> aero/ref/vtip-fps </property>
<property> metrics/rotor/R-ft </property>
</product>
</function>
<function name="aero/HWhat-psft"> <!-- rho*solitity*Area * Omega*R * R*R -->
<description> Dynamic angular momentum, see /BR59/. </description>
<product>
<property> atmosphere/rho-slugs_ft3 </property>
<property> metrics/rotor/solitity </property>
<property> metrics/rotor/Area-ft2 </property>
<property> aero/ref/vtip-fps </property>
<property> metrics/rotor/R-ft </property>
<property> metrics/rotor/R-ft </property>
</product>
</function>
<function name="aero/mu">
<description> Common shortcut for advance ratio. </description>
<property> propulsion/engine[1]/advance-ratio </property>
</function>
<function name="velocities/uhat">
<description> Non dimensional speed. </description>
<quotient>
<property> velocities/u-aero-fps </property>
<property> aero/ref/vtip-fps </property>
</quotient>
</function>
<function name="velocities/vhat">
<description> Non dimensional speed. </description>
<quotient>
<property> velocities/v-aero-fps </property>
<property> aero/ref/vtip-fps </property>
</quotient>
</function>
<!-- ============================================================
Downwash incidence and angle normalization
============================================================ -->
<function name="aero/downwash-angle-wing-rad">
<description> Additional wing incidence angle due to downwash, approximation for low alpha. </description>
<product>
<table>
<independentVar lookup="row"> velocities/vhat </independentVar>
<independentVar lookup="column"> velocities/uhat </independentVar>
<tableData>
-0.1 -0.07 0.0 0.07 0.1
-0.1 0.0 0.0 0.0 0.0 0.0
-0.08 0.0 -2.5 -1.5 0.0 0.0
0.0 0.0 -2.75 -1.57 -0.4 0.0
0.08 0.0 -2.5 -1.5 0.0 0.0
0.1 0.0 0.0 0.0 0.0 0.0
</tableData>
</table>
<cos> <property> aero/alpha-rad </property> </cos>
<cos> <property> aero/alpha-rad </property> </cos>
</product>
</function>
<function name="aero/raw_alpha_incidence_wing-rad">
<description> Wing incidence incl. downwash. </description>
<sum>
<property> aero/downwash-angle-wing-rad </property>
<property> aero/alpha-rad </property>
<property> metrics/iw-rad </property>
</sum>
</function>
<function name="aero/alpha_incidence_wing-rad">
<description> Normalize to +/- pi. </description>
<product>
<value>2.0</value>
<atan><tan>
<product>
<value>0.5</value>
<property> aero/raw_alpha_incidence_wing-rad </property>
</product>
</tan></atan>
</product>
</function>
<axis name="LIFT">
<function name="aero/coefficient/CLalpha">
<description>Lift_due_to_alpha</description>
<product>
<property>aero/qbar-psf</property>
<property>metrics/Sw-sqft</property>
<table>
<independentVar lookup="row">aero/alpha-rad</independentVar>
<tableData>
-0.20 -0.075
0.00 0.025
0.23 0.140
0.60 0.091
</tableData>
</table>
</product>
</function>
</axis>
<axis name="DRAG">
<function name="aero/coefficient/CD0">
<description>Drag_at_zero_lift</description>
<product>
<property>aero/qbar-psf</property>
<property>metrics/Sw-sqft</property>
<table>
<independentVar lookup="row">aero/alpha-rad</independentVar>
<tableData>
-1.57 1.500
-0.26 0.036
0.00 0.022
0.26 0.036
1.57 1.500
</tableData>
</table>
</product>
</function>
<function name="aero/coefficient/CDbeta">
<description>Drag_due_to_sideslip</description>
<product>
<property>aero/qbar-psf</property>
<property>metrics/Sw-sqft</property>
<table>
<independentVar lookup="row">aero/beta-rad</independentVar>
<tableData>
-1.57 1.230
-0.26 0.050
0.00 0.000
0.26 0.050
1.57 1.230
</tableData>
</table>
</product>
</function>
</axis>
<axis name="SIDE">
<function name="aero/coefficient/CYb">
<description>Side_force_due_to_beta</description>
<product>
<property>aero/qbar-psf</property>
<property>metrics/Sw-sqft</property>
<property>aero/beta-rad</property>
<value>-1</value>
</product>
</function>
</axis>
<axis name="ROLL">
<function name="aero/coefficient/Clb">
<description>Roll_moment_due_to_beta</description>
<product>
<property>aero/qbar-psf</property>
<property>metrics/Sw-sqft</property>
<property>metrics/bw-ft</property>
<property>aero/beta-rad</property>
<value>-0.02</value>
</product>
</function>
<function name="aero/coefficient/Clp">
<description>Roll_moment_due_to_roll_rate</description>
<product>
<property>aero/qbar-psf</property>
<property>metrics/Sw-sqft</property>
<property>metrics/bw-ft</property>
<property>aero/bi2vel</property>
<property>velocities/p-aero-rad_sec</property>
<value>-0.1</value>
</product>
</function>
</axis>
<axis name="PITCH">
<function name="aero/coefficient/Cmalpha">
<description>Pitch_moment_due_to_alpha</description>
<product>
<property>aero/qbar-psf</property>
<property>metrics/Sw-sqft</property>
<property>metrics/cbarw-ft</property>
<property>aero/alpha-rad</property>
<value>-0.3</value>
</product>
</function>
<function name="aero/coefficient/Cmq">
<description>Pitch_moment_due_to_pitch_rate</description>
<product>
<property>aero/qbar-psf</property>
<property>metrics/Sw-sqft</property>
<property>metrics/cbarw-ft</property>
<property>aero/ci2vel</property>
<property>velocities/q-aero-rad_sec</property>
<value>-4</value>
</product>
</function>
<function name="aero/coefficient/Cmadot">
<description>Pitch_moment_due_to_alpha_rate</description>
<product>
<property>aero/qbar-psf</property>
<property>metrics/Sw-sqft</property>
<property>metrics/cbarw-ft</property>
<property>aero/ci2vel</property>
<property>aero/alphadot-rad_sec</property>
<value>-1</value>
</product>
</function>
</axis>
<axis name="YAW">
<function name="aero/coefficient/Cnb">
<description>Yaw_moment_due_to_beta</description>
<product>
<property>aero/qbar-psf</property>
<property>metrics/Sw-sqft</property>
<property>metrics/bw-ft</property>
<property>aero/beta-rad</property>
<value>0.12</value>
</product>
</function>
<function name="aero/coefficient/Cnr">
<description>Yaw_moment_due_to_yaw_rate</description>
<product>
<property>aero/qbar-psf</property>
<property>metrics/Sw-sqft</property>
<property>metrics/bw-ft</property>
<property>aero/bi2vel</property>
<property>velocities/r-aero-rad_sec</property>
<value>-0.15</value>
</product>
</function>
<function name="aero/coefficient/Cndr">
<description>Yaw_moment_due_to_rudder</description>
<product>
<property>aero/qbar-psf</property>
<property>metrics/Sw-sqft</property>
<property>metrics/bw-ft</property>
<property>fcs/rudder-pos-rad</property>
<value>-0.1</value>
</product>
</function>
</axis>
</aerodynamics>
</fdm_config>