electric_thruster Class Reference

Models a pulsewidth modulated suite of thrusters with a single blowdown tank. More...

#include <electric_thruster.h>

Inherits dsim_model.

Public Member Functions
	electric_thruster (dsim_model_setup *setup)
	Constructor.
	~electric_thruster ()
	Destructor.
void *	describe_setup (void *ds)
	Describe the setup variables.
void	initialize_data ()
	Initialize outlets and output variables.
void	initialization_complete ()
	Finish initialization.
void	initialize_timestep ()
	Computation done prior to numerical integration.
void	rhs (double t, double jd)
	Right-hand-side. More...
void	complete_timestep ()
	Computation done after numerical integration.

Detailed Description

Models a pulsewidth modulated suite of thrusters with a single blowdown tank.

A pulsewidth command is sent to the thrusters. The thrusters then fire until the pulsewidth is complete.

A blowdown system is assumed using Helium as the pressurant. The pressure is modeled assuming a single tank. The fuel mass is an integrated state so that fuel consumption is tracked.

Each thruster can have a catalyst bed. The length of the catalyst bed must be the same as the length of the thrusters.

Thrusters are added using a AddThruster setup directive. The thrust model is

Thrust = T*P

where T is the thrust coefficient and P is the current tank pressure.

Member Function Documentation

rhs()

void electric_thruster::rhs	(	double	t,
		double	jd
	)

Right-hand-side.

The right hand side applies the force and torque to the parent object and computes the fuel mass derivative using the mass flow.

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The documentation for this class was generated from the following files:

• electric_thruster.h
• electric_thruster.cc