1. Introduction to Adevs continuous modeling
Lee, Hojun

2. Contents Adevs classes for continuous modeling
An Example : cherry bomb
Another example for practice
Ref. Adevs manual:

3. Adevs classes for continuous modeling
Basic : adevs_dess.h
discrete_output_func()
discrtet_action_func()
evolve_func()
next_event_func()
state_changed()
Modified : adevs_rk4.h/ adevs_rk45.h
der_func()
state_event_func()
time_event_func()
discrete_action()
discrete_output()

4. An Example: Cherry Bomb(1/2)
A cherry bomb is dropped from a height of 1 meter and bounces until it explodes or is doused with water
Move only up and down and perfectly elastic.
Explode in 2 seconds after it is lit.
Dousing is an input event which gets the fuse off, “boom” message comes out as an output when it explodes.

5. An Example: Cherry Bomb(2/2)
Continuous state variables: height(h), velocity(v), time(t)
Discrete state variable: phase(lit, douse, explode)
Differential equations
dv/dt = -9.8 m/s
dh/dt = v
Condition
If (h=0 & v <0) then v = -v;

6. Another example for practice(1/2)
Track generator (2D cartesian coordinate)
A target moves in the x direction starting from (0, 0) at velocity of 100m/s
From 1 sec to 1.5 sec it turns left by 10 degree
No input, No output

7. Another example for practice(2/2)
Continuous state variables : x , y, angle(theta), time(t)
Discrete state variable: phase (start, stop)
Differential Equ.
dx/dt = velocity*cos(theta);
dy/dt = velocity*sin(theta);
Condition
If (t >=1.0&&t <1.5) then theta = 10 degree;
else theta = 0;

8. Thank you
Questions?