X-Git-Url: https://permondes.de/gitweb/Analog_Engine.git/blobdiff_plain/54bf965f97de8b362cbd0b85440aabbbd861ddc1..f25252dda165cd2fb57a745bcb17df03d5b590f3:/AESL/Damped%20Harmonic%20Oscillator.AESL?ds=sidebyside

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+IDENTIFICATION DIVISION
+PROGRAM-ID Damped_Oscillator
+
+ENVIRONMENT DIVISION
+ENGINE Anabrid-THAT
+REQUIRES COEFFICIENT 5
+REQUIRES INTEGRATOR 2
+REQUIRES INVERTER 1
+REQUIRES SUMMER 2
+
+DATA DIVISION
+OUTPUT OUTPUT.U y
+ALIAS COEFFICIENT.1 InitialPosition
+ALIAS COEFFICIENT.2 InitialSpeed
+ALIAS COEFFICIENT.3 SpringForce
+ALIAS COEFFICIENT.4 Damping # linear to speed
+ALIAS COEFFICIENT.5 Mass # 1 / mass
+
+PROGRAM DIVISION
+# Colors being used for wiring
+# - black:  y0
+# - blue:   y0’
+# - green:  y0’’
+# - yellow: y’’, y’
+# - red:    y
+-1 -> InitialPosition -> -y0 # -initial position of the mass
+-1 -> InitialSpeed -> y0s’ # y’ is scaled to be within -1..+1
++1, y0s’, y0s’ -> Summer.1 -> y0’
+y’’, IC:y0’ -> INTEGRATOR.1 -> -y’
+-y’,IC:-y0 -> INTEGRATOR.2 -> y
+y -> SpringForce -> S*y # springforce times displacement
+-y’ -> INVERTER.1 -> y’
+y’ -> Damping -> D*y’ # damping times speed
+S*y, D*y’ -> SUMMER.2 -> -(Dy’+Sy)
+-(Dy’+Sy) -> Mass -> -1/m*(Dy’+Sy)=y’’
+
+OPERATION DIVISION
+MODE REPEAT
+OP-TIME 80ms