A320-family/Systems/a320-ground-reactions.xml

<?xml version="1.0"?>

<!-- Airbus A320 JSBsim -->
<!-- Copyright (c) 2023 Josh Davidson (Octal450) -->

<ground_reactions>
	
	<contact type="BOGEY" name="NOSE_LG">
		<location unit="M">
			<x>-13.6519</x>
			<y>0</y>
			<z>-4.35683</z>
		</location>
		<static_friction>1.4</static_friction> <!-- Arbitrarily high to help nose wheel steering - no effect on braking -->
		<dynamic_friction>0.6</dynamic_friction>
		<rolling_friction>0.02</rolling_friction>
		<spring_coeff unit="LBS/FT">30935.5</spring_coeff>
		<damping_coeff unit="LBS/FT/SEC">16978.5</damping_coeff>
		<max_steer unit="DEG">75</max_steer>
		<table name="CORNERING_COEFF" type="internal">
			<tableData> <!-- jsbsim-pacejka.py 3.0 0.03 2.85 1.4 1.03 1.4 -->
				-90.0 -0.64429852792097750
				-85.0 -0.65803784878515970
				-80.0 -0.67367546323532410
				-75.0 -0.69148835376736980
				-70.0 -0.71179130570975040
				-65.0 -0.73493212105552120
				-60.0 -0.76127441823995780
				-55.0 -0.79115479580170660
				-50.0 -0.82478835297656280
				-45.0 -0.86207184328003720
				-40.0 -0.90218731471298370
				-35.0 -0.94282786495867110
				-30.0 -0.97874912755212280
				-25.0 -0.99927325792190310
				-20.0 -0.98471983766820350
				-15.0 -0.90363984864415470
				-10.0 -0.71770750752441240
				 -5.0 -0.40543502538657494
				  0.0  0.00000000000000000
				  5.0  0.40543502538657494
				 10.0  0.71770750752441240
				 15.0  0.90363984864415470
				 20.0  0.98471983766820350
				 25.0  0.99927325792190310
				 30.0  0.97874912755212280
				 35.0  0.94282786495867110
				 40.0  0.90218731471298370
				 45.0  0.86207184328003720
				 50.0  0.82478835297656280
				 55.0  0.79115479580170660
				 60.0  0.76127441823995780
				 65.0  0.73493212105552120
				 70.0  0.71179130570975040
				 75.0  0.69148835376736980
				 80.0  0.67367546323532410
				 85.0  0.65803784878515970
				 90.0  0.64429852792097750
			</tableData>
		</table>
		<brake_group>NONE</brake_group>
		<retractable>1</retractable>
	</contact>
	<contact type="BOGEY" name="LEFT_MLG">
		<location unit="M">
			<x>-1.1393</x>
			<y>-4.32562</y>
			<z>-4.35908</z>
		</location>
		<static_friction>0.4</static_friction>
		<dynamic_friction>0.6</dynamic_friction>
		<rolling_friction>0.02</rolling_friction>
		<spring_coeff unit="LBS/FT">59785</spring_coeff>
		<damping_coeff unit="LBS/FT/SEC">23957</damping_coeff>
		<max_steer unit="DEG">0</max_steer>
		<table name="CORNERING_COEFF" type="internal">
			<tableData> <!-- jsbsim-pacejka.py 3.0 0.06 2.8 0.4 1.03 0.4 -->
				-90.0 -0.5760395836174765
				-85.0 -0.5776440181093163
				-80.0 -0.5803918992801416
				-75.0 -0.5845010317001210
				-70.0 -0.5902476568617109
				-65.0 -0.5979865464058901
				-60.0 -0.6081793463286825
				-55.0 -0.6214348494943271
				-50.0 -0.6385661913510731
				-45.0 -0.6606706311692150
				-40.0 -0.6892340269266316
				-35.0 -0.7262408296125531
				-30.0 -0.7741813043425955
				-25.0 -0.8355026710967954
				-20.0 -0.9097416834082445
				-15.0 -0.9818532434458515
				-10.0 -0.9824937511496707
				 -5.0 -0.7127565569007204
				  0.0  0.0000000000000000
				  5.0  0.7127565569007204
				 10.0  0.9824937511496707
				 15.0  0.9818532434458515
				 20.0  0.9097416834082445
				 25.0  0.8355026710967954
				 30.0  0.7741813043425955
				 35.0  0.7262408296125531
				 40.0  0.6892340269266316
				 45.0  0.6606706311692150
				 50.0  0.6385661913510731
				 55.0  0.6214348494943271
				 60.0  0.6081793463286825
				 65.0  0.5979865464058901
				 70.0  0.5902476568617109
				 75.0  0.5845010317001210
				 80.0  0.5803918992801416
				 85.0  0.5776440181093163
				 90.0  0.5760395836174765
			</tableData>
		</table>
		<brake_group>LEFT</brake_group>
		<retractable>1</retractable>
	</contact>
	<contact type="BOGEY" name="RIGHT_MLG">
		<location unit="M">
			<x>-1.1393</x>
			<y>4.32562</y>
			<z>-4.35908</z>
		</location>
		<static_friction>0.4</static_friction>
		<dynamic_friction>0.6</dynamic_friction>
		<rolling_friction>0.02</rolling_friction>
		<spring_coeff unit="LBS/FT">59785</spring_coeff>
		<damping_coeff unit="LBS/FT/SEC">23957</damping_coeff>
		<max_steer unit="DEG">0</max_steer>
		<table name="CORNERING_COEFF" type="internal">
			<tableData> <!-- jsbsim-pacejka.py 3.0 0.06 2.8 0.4 1.03 0.4 -->
				-90.0 -0.5760395836174765
				-85.0 -0.5776440181093163
				-80.0 -0.5803918992801416
				-75.0 -0.5845010317001210
				-70.0 -0.5902476568617109
				-65.0 -0.5979865464058901
				-60.0 -0.6081793463286825
				-55.0 -0.6214348494943271
				-50.0 -0.6385661913510731
				-45.0 -0.6606706311692150
				-40.0 -0.6892340269266316
				-35.0 -0.7262408296125531
				-30.0 -0.7741813043425955
				-25.0 -0.8355026710967954
				-20.0 -0.9097416834082445
				-15.0 -0.9818532434458515
				-10.0 -0.9824937511496707
				 -5.0 -0.7127565569007204
				  0.0  0.0000000000000000
				  5.0  0.7127565569007204
				 10.0  0.9824937511496707
				 15.0  0.9818532434458515
				 20.0  0.9097416834082445
				 25.0  0.8355026710967954
				 30.0  0.7741813043425955
				 35.0  0.7262408296125531
				 40.0  0.6892340269266316
				 45.0  0.6606706311692150
				 50.0  0.6385661913510731
				 55.0  0.6214348494943271
				 60.0  0.6081793463286825
				 65.0  0.5979865464058901
				 70.0  0.5902476568617109
				 75.0  0.5845010317001210
				 80.0  0.5803918992801416
				 85.0  0.5776440181093163
				 90.0  0.5760395836174765
			</tableData>
		</table>
		<brake_group>RIGHT</brake_group>
		<retractable>1</retractable>
	</contact>
	
	<contact type="STRUCTURE" name="NOSE_1">
		<location unit="M">
			<x>-18.8029</x>
			<y>0</y>
			<z>-0.86913</z>
		</location>
		<static_friction>1.0</static_friction>
		<dynamic_friction>0.4</dynamic_friction>
		<rolling_friction>0.4</rolling_friction>
		<spring_coeff unit="LBS/FT">50000</spring_coeff>
		<damping_coeff unit="LBS/FT/SEC">50000</damping_coeff>
		<max_steer unit="DEG">0.0</max_steer>
		<brake_group>NONE</brake_group>
		<retractable>0</retractable>
	</contact>
	<contact type="STRUCTURE" name="NOSE_2">
		<location unit="M">
			<x>-15.86</x>
			<y>0</y>
			<z>1.41537</z>
		</location>
		<static_friction>1.0</static_friction>
		<dynamic_friction>0.4</dynamic_friction>
		<rolling_friction>0.4</rolling_friction>
		<spring_coeff unit="LBS/FT">50000</spring_coeff>
		<damping_coeff unit="LBS/FT/SEC">50000</damping_coeff>
		<max_steer unit="DEG">0.0</max_steer>
		<brake_group>NONE</brake_group>
		<retractable>0</retractable>
	</contact>
	
	<contact type="STRUCTURE" name="BOTTOM_1">
		<location unit="M">
			<x>-14.0535</x>
			<y>0</y>
			<z>-2.2431</z>
		</location>
		<static_friction>1.0</static_friction>
		<dynamic_friction>0.4</dynamic_friction>
		<rolling_friction>0.4</rolling_friction>
		<spring_coeff unit="LBS/FT">50000</spring_coeff>
		<damping_coeff unit="LBS/FT/SEC">50000</damping_coeff>
		<max_steer unit="DEG">0.0</max_steer>
		<brake_group>NONE</brake_group>
		<retractable>0</retractable>
	</contact>
	<contact type="STRUCTURE" name="BOTTOM_2">
		<location unit="M">
			<x>6.78689</x>
			<y>0</y>
			<z>-2.19094</z>
		</location>
		<static_friction>1.0</static_friction>
		<dynamic_friction>0.4</dynamic_friction>
		<rolling_friction>0.4</rolling_friction>
		<spring_coeff unit="LBS/FT">50000</spring_coeff>
		<damping_coeff unit="LBS/FT/SEC">50000</damping_coeff>
		<max_steer unit="DEG">0.0</max_steer>
		<brake_group>NONE</brake_group>
		<retractable>0</retractable>
	</contact>
	
	<contact type="STRUCTURE" name="TOP_1">
		<location unit="M">
			<x>-12.2837</x>
			<y>0</y>
			<z>1.91891</z>
		</location>
		<static_friction>1.0</static_friction>
		<dynamic_friction>0.4</dynamic_friction>
		<rolling_friction>0.4</rolling_friction>
		<spring_coeff unit="LBS/FT">50000</spring_coeff>
		<damping_coeff unit="LBS/FT/SEC">50000</damping_coeff>
		<max_steer unit="DEG">0.0</max_steer>
		<brake_group>NONE</brake_group>
		<retractable>0</retractable>
	</contact>
	<contact type="STRUCTURE" name="TOP_2">
		<location unit="M">
			<x>9.32421</x>
			<y>0</y>
			<z>1.90163</z>
		</location>
		<static_friction>1.0</static_friction>
		<dynamic_friction>0.4</dynamic_friction>
		<rolling_friction>0.4</rolling_friction>
		<spring_coeff unit="LBS/FT">50000</spring_coeff>
		<damping_coeff unit="LBS/FT/SEC">50000</damping_coeff>
		<max_steer unit="DEG">0.0</max_steer>
		<brake_group>NONE</brake_group>
		<retractable>0</retractable>
	</contact>
	
	<contact type="STRUCTURE" name="ENG_1">
		<location unit="M">
			<x>-5.35132</x>
			<y>-5.63082</y>
			<z>-3.2689</z>
		</location>
		<static_friction>1.0</static_friction>
		<dynamic_friction>0.4</dynamic_friction>
		<rolling_friction>0.4</rolling_friction>
		<spring_coeff unit="LBS/FT">50000</spring_coeff>
		<damping_coeff unit="LBS/FT/SEC">50000</damping_coeff>
		<max_steer unit="DEG">0.0</max_steer>
		<brake_group>NONE</brake_group>
		<retractable>0</retractable>
	</contact>
	<contact type="STRUCTURE" name="ENG_2">
		<location unit="M">
			<x>-5.35132</x>
			<y>5.63082</y>
			<z>-3.2689</z>
		</location>
		<static_friction>1.0</static_friction>
		<dynamic_friction>0.4</dynamic_friction>
		<rolling_friction>0.4</rolling_friction>
		<spring_coeff unit="LBS/FT">50000</spring_coeff>
		<damping_coeff unit="LBS/FT/SEC">50000</damping_coeff>
		<max_steer unit="DEG">0.0</max_steer>
		<brake_group>NONE</brake_group>
		<retractable>0</retractable>
	</contact>
	
	<contact type="STRUCTURE" name="TAIL_1">
		<location unit="M">
			<x>18.7563</x>
			<y>0</y>
			<z>0.87243</z>
		</location>
		<static_friction>1.0</static_friction>
		<dynamic_friction>0.4</dynamic_friction>
		<rolling_friction>0.4</rolling_friction>
		<spring_coeff unit="LBS/FT">50000</spring_coeff>
		<damping_coeff unit="LBS/FT/SEC">50000</damping_coeff>
		<max_steer unit="DEG">0.0</max_steer>
		<brake_group>NONE</brake_group>
		<retractable>0</retractable>
	</contact>
	<contact type="STRUCTURE" name="TAIL_2">
		<location unit="M">
			<x>17.0302</x>
			<y>0</y>
			<z>7.74793</z>
		</location>
		<static_friction>1.0</static_friction>
		<dynamic_friction>0.4</dynamic_friction>
		<rolling_friction>0.4</rolling_friction>
		<spring_coeff unit="LBS/FT">50000</spring_coeff>
		<damping_coeff unit="LBS/FT/SEC">50000</damping_coeff>
		<max_steer unit="DEG">0.0</max_steer>
		<brake_group>NONE</brake_group>
		<retractable>0</retractable>
	</contact>
	
	<contact type="STRUCTURE" name="WING_TIP_1">
		<location unit="M">
			<x>2.48627</x>
			<y>-16.9301</y>
			<z>0.34704</z>
		</location>
		<static_friction>1.0</static_friction>
		<dynamic_friction>0.4</dynamic_friction>
		<rolling_friction>0.4</rolling_friction>
		<spring_coeff unit="LBS/FT">50000</spring_coeff>
		<damping_coeff unit="LBS/FT/SEC">50000</damping_coeff>
		<max_steer unit="DEG">0.0</max_steer>
		<brake_group>NONE</brake_group>
		<retractable>0</retractable>
	</contact>
	<contact type="STRUCTURE" name="WING_TIP_2">
		<location unit="M">
			<x>2.48627</x>
			<y>16.9301</y>
			<z>0.34704</z>
		</location>
		<static_friction>1.0</static_friction>
		<dynamic_friction>1</dynamic_friction>
		<rolling_friction>1</rolling_friction>
		<spring_coeff unit="LBS/FT">50000</spring_coeff>
		<damping_coeff unit="LBS/FT/SEC">50000</damping_coeff>
		<max_steer unit="DEG">0.0</max_steer>
		<brake_group>NONE</brake_group>
		<retractable>0</retractable>
	</contact>

</ground_reactions>