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followme_e-tron
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FDM and engines improvements

This commit is contained in:
Sidi Liang 2020-01-29 12:13:18 +08:00
parent 33ad25d2a3
commit e49299103d
2 changed files with 27 additions and 48 deletions
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11
Nasal/engine.nas
View File

@ -42,9 +42,9 @@ var Engine = {
return me.gear;
},
rotor_moi: 2.5,
wheel_moi: 0.7688,
wheel_radius: 0.31, #//M
rotor_moi: 2.3,
wheel_moi: 0.9,
wheel_radius: 0.31,#//M
rpm: 0,
@ -67,9 +67,8 @@ var Engine = {
var angularSpeed = rpm * 0.10471975; #//rps * 2 * 3.1415926
var friction_lbs = props.getNode("/",1).getValue("fdm/jsbsim/forces/fbx-gear-lbs");
var friction = 4.4492 * friction_lbs;
#//var frictionTorque = friction * 0.045;
var angularDecelaeration = friction * me.wheel_radius * (1/me.wheel_moi) * 0.25; #//frictionTorque = friction * wheel_radius, angularDecelaeration = frictionTorque/wheel_moi;
var friction = 4.4492 * friction_lbs * 0.25;#//0.25: single wheel
var angularDecelaeration = friction * me.wheel_radius * (1/me.wheel_moi); #//frictionTorque = friction * wheel_radius, angularDecelaeration = frictionTorque/wheel_moi;
#print(angularAcceleration);
#print("de"~angularDecelaeration);

64
followme_e-tron.xml
View File

@ -90,7 +90,7 @@
<rolling_friction> 0.06 </rolling_friction>
<spring_coeff unit="LBS/FT"> 5400 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 1600 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
<max_steer unit="DEG"> -5 </max_steer>
<brake_group> LEFT </brake_group>
<retractable>0</retractable>
</contact>
@ -105,7 +105,7 @@
<rolling_friction> 0.06 </rolling_friction>
<spring_coeff unit="LBS/FT"> 5400 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 1600 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
<max_steer unit="DEG"> -5 </max_steer>
<brake_group> RIGHT </brake_group>
<retractable>0</retractable>
</contact>
@ -115,9 +115,8 @@
<y>0</y>
<z>0.38</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -130,9 +129,8 @@
<y>0</y>
<z>0.38</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -145,9 +143,8 @@
<y>0</y>
<z>0.54</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -160,9 +157,8 @@
<y>0.66</y>
<z>0.54</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -175,9 +171,8 @@
<y>-0.66</y>
<z>0.54</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -190,9 +185,8 @@
<y>0.80</y>
<z>0.75</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -205,9 +199,8 @@
<y>-0.80</y>
<z>0.75</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -220,9 +213,8 @@
<y>0</y>
<z>0.62</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -235,9 +227,8 @@
<y>0.73</y>
<z>0.76</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -250,9 +241,8 @@
<y>-0.73</y>
<z>0.76</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -265,9 +255,8 @@
<y>0</y>
<z>0.90</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -280,9 +269,8 @@
<y>0</y>
<z>1.73</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -295,9 +283,8 @@
<y>0.37</y>
<z>1.96</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -310,9 +297,8 @@
<y>-0.37</y>
<z>1.96</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -325,9 +311,8 @@
<y>0.8</y>
<z>0.9</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -340,9 +325,8 @@
<y>-0.8</y>
<z>0.9</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -355,9 +339,8 @@
<y>0.94</y>
<z>1.05</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -370,9 +353,8 @@
<y>-0.94</y>
<z>1.05</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -385,9 +367,8 @@
<y>0.80</y>
<z>0.7</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>
@ -400,9 +381,8 @@
<y>-0.80</y>
<z>0.7</z>
</location>
<static_friction> 2.0 </static_friction>
<static_friction> 3.0 </static_friction>
<dynamic_friction> 2.0 </dynamic_friction>
<rolling_friction> 2.0 </rolling_friction>
<spring_coeff unit="LBS/FT"> 8000 </spring_coeff>
<damping_coeff unit="LBS/FT/SEC"> 5000 </damping_coeff>
<max_steer unit="DEG"> 0.0 </max_steer>