jsbsim.js/JSBSim/aircraft/p51d/Systems/alpha-buffet.xml

JSBSim flight dynamics model ported to JavaScript

<?xml version="1.0"?>

<system name="alpha_buffet">

  <property>systems/alpha_buffet/hertz</property>
  <property>systems/alpha_buffet/sine_wave</property>

  <channel name="Alpha_Buffet">

       <switch name="enable">
          <default value="0"/>
          <test logic="AND" value="1">
               velocities/ve-kts gt 65
               gear/unit[0]/WOW == 0
          </test>
          <output>systems/alpha_buffet/enabled</output>
       </switch>

   <scheduled_gain name="Buffet Frequency">
      <input>systems/alpha_buffet/enabled</input>
      <table>
        <independentVar lookup="row">aero/alpha-deg</independentVar>
        <tableData>
           0         0.0
           10.4      0.0
           10.5     15.0
           12.0      6.0
        </tableData>
      </table>
      <output>systems/alpha_buffet/hertz</output>
   </scheduled_gain>

   <scheduled_gain name="Buffet Strength">
      <input>systems/alpha_buffet/enabled</input>
      <table>
        <independentVar lookup="row">aero/alpha-deg</independentVar>
        <independentVar lookup="column">velocities/ve-kts</independentVar>
        <tableData>
                       100   130    200
           0           0.0   0.0    0.0
           10.4        0.0   0.0    0.0
           10.5        0.3   0.01   0.0
           16.0        1.5   0.05   0.0
        </tableData>
      </table>
      <output>systems/alpha_buffet/strength</output>
   </scheduled_gain>

   <fcs_function name="Sine Wave Generator">
     <function>
       <sin>
         <product>
           <property>systems/alpha_buffet/hertz</property>
           <property>simulation/sim-time-sec</property>
           <value>6.283185307</value>
         </product>
       </sin>
     </function>
     <output>systems/alpha_buffet/sine_wave</output>
   </fcs_function>

  </channel>


</system>