C
parameters
	real c = 1 {N/m};
variables
	real global fspring;
equations
	state = int(p.f);
	p.e = state / c;
	fspring=p.e;

I
parameters
	real global i =0.1 {kg};
variables
		real global vv;
		boolean global reset;
equations
     state = resint(p.e,0,reset,0);
    p.f = state / i;

Integrate
parameters
	real initial = 0;	// initial value
variables
		real global vv;
		boolean global reset;
		
equations
	reset=event(input);
	out = int (input, initial);
	vv=out;
MSe
variables
	real flow;
	real global  F1;
equations
	p.e = out;
	flow = p.f;
	port1=p.e;
	F1=p.e;

R
parameters
	real static=1 {N};
	real fslide =0.1 {N};
	real ddv =1.0e-10;
	real global i;
variables
	real global a2;
	real sta_f;
	real global fspring;
	real s1;

equations
	s1=port1-fspring;
	sta_f =if abs(p.f) > ddv then
		 fslide*sign(p.f)
		else
		if abs(s1) > static then//port1=Input Force
			static*sign(s1)
			else
			s1
			end
			end;
			p.e=sta_f;
					
							
Ramp
parameters
	real slope = 1 {1/s};
	real start_time = 0.0 {s};
variables
	boolean hidden change;
equations
	"calculate at least at the start time"
	change = timeevent (start_time);

	"calculate the ramp signal"
	output = slope * ramp (start_time);
     
Ramp1
parameters
	real slope = 2 {1/s};
	real start_time = 5.0 {s};
variables
	boolean hidden change;
equations
	"calculate at least at the start time"
	change = timeevent (start_time);

	"calculate the ramp signal"
	output = slope * ramp (start_time);
     
Ramp2
parameters
	real slope = 2 {1/s};
	real start_time = 10.0 {s};
variables
	boolean hidden change;
equations
	"calculate at least at the start time"
	change = timeevent (start_time);

	"calculate the ramp signal"
	output = slope * ramp (start_time);
     
Ramp3
parameters
	real slope = 2 {1/s};
	real start_time = 15.0 {s};
variables
	boolean hidden change;
equations
	"calculate at least at the start time"
	change = timeevent (start_time);

	"calculate the ramp signal"
	output = slope * ramp (start_time);
     
X
variables
	real interesting plot;
equations
	plot = input;