Harmonic Oscillator basics, some changes to AESL

[Analog_Engine.git] / AESL / 4.11 TwoRaindrops.AESL

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-IDENTIFICATION DIVISION
-PROGRAM-ID TwoRaindrops
-VERSION 20240131
-COMMENT Two raindrops of same size and altitude are falling from a cloud.
-COMMENT How long does it take until the touch?
-COMMENT s'' = -2*gamma*m/s^2
-
-ENVIRONMENT DIVISION
-ENGINE Anabrid-THAT
-TIMEBASE 1ms
-REQUIRES COEFFICIENT 3, INVERTER 1, INTEGRATOR 2, COMPARATOR 1, MULTIPLIER 2, OPEN-AMP 1 
-
-DATA DIVISION
-OUTPUT OUTPUT.X s_limited
-COEFFICIENT.1 2*radius of the raindrop
-COEFFICIENT.2 initial distance -s0
-COEFFICIENT.3 2*gamma*m
-
-PROGRAM DIVISION
-+1 -> COEFFICIENT.1 -> 2r
-2r -> INVERTER.1 -> -2r
--1 -> COEFFICIENT.2 -> -s0
-+1 -> COEFFICIENT.3 -> 2gamma*m
-s'' -> INTEGRATOR.1 -> -s'
--s', IC:-s0 -> INTEGRATOR.2 -> s
-
-# The raindrops may only approach until they touch. Our model does not include their unification
-A:s, B:-2r, GT0:s, LT0:2r -> COMPARATOR.1 -> s_limited
-
-s_limited,s_limited -> MULTIPLIER.1 -> s^2
-
-# division 2gamma*m / s^2
-# Open amplifier is realized on THAT by FB:SUMMER.GND -> SUMMER
-2gamma*m, inp2 -> OPEN-AMP -> -2gamma*m/s^2=s''
-2gamma*m^2, s^2 -> MULTIPLIER.2 -> inp2
-
-OPERATION DIVISION
-MODE REPEAT
-OP-TIME 12ms