StraightLine Module

Directory List

ConstantAccel	ConstantThrust	Data
Demos/AlphaCentauri	Demos/ConstantThrust	Demos/Flyby
Demos/Rectilinear	Demos/SLPowerLimited	Flyby
Rectilinear	SLPowerLimited

ConstantAccel

ConstantAccelDV	Estimate DV using constant acceleration approximation
MassFuelElectricConstantPower	Fuel mass for a constant accel/power electric propulsion system
MassFuelElectricConstantUE	Fuel mass for a constant accel/exhaust velocity electric propulsion system.
StraightLineConstantAccel	Constant acceleration simulation
StraightLineDataStructure	Returns data structure for straight line functions
ThrustElectric	Computes power and thrust as a function of specific power.

ConstantThrust

ComputeDuration	Compute straight-line duration given power and distance (analytic)
ComputeDurationFraction	Compute the duration from the desired payload fraction
ComputePayload	Compute payload mass given power, distance, and time (analytic).
ComputePayloadFraction	Compute payload fraction given time, distance, and uE (analytic)
ComputeThrust	Compute the thrust for a mission, given time and distance
DVConstantThrust	Velocity change with constant thrust given fuel and time
DVForTime	Straight-line DV given payload, power and engine properties
DVLimit	Straight-line DV limit from engine parameters and time.
DryMass	Dry mass of vehicle from thrust: payload + engine + fuel tanks
EngineMass	Compute engine mass given straight-line thrust
EnginePower	Compute engine power from thrust
EngineReport	Report of constant-thrust engine properties
EngineThrust	Compute engine thrust given power
FuelMass	Fuel mass from the thrust and duration
InitialMass	Initial mass of vehicle from straight-line thrust and time
MassFuelElectricConstantThrust	Fuel mass for a constant thrust electric propulsion system.
MaximumDV	Maximum DV calculated from power level
OptimalCharacteristicVelocity	Optimal velocity ratio for straight-line mission
OptimalExhaustVelocity	Find a mass-optimal straight-line exhaust velocity using fminbnd
OptimalImpulseDuration	Find the exhaust velocity to minimize duration using fminbnd
OptimalTripTime	Optimal straight-line trip time for an ideal rocket
PlotPayloadFraction	Plot the payload fraction for a range of transfer times
RoundTripTime	Round trip time for a straight-line, constant thrust (Kammash)
SimulateStraightLineTrajectory	Simulate a straight line, constant-thrust trajectory
SolveSigma	Solve for a sigma given a time, distance, and payload (fzero)
Straight2DStructure	Data structure for straight line mission analysis
StraightLineConstantThrust	Compute straight line bang-bang trajectory with constant thrust
StraightLineOptimal	Compute exhaust velocity and thrust for a minimum mass trajectory
StraightLineReport	Text report for straight line trajectory output
SwitchTime	Calculate the switch time for a straight line trajectory
TripDistance	Distance traveled in time for straight-line constant thrust.
TripTime	Compute the trip time and thrust from distance and total mass (analytic)
UToMF	Calculate masses for a spacecraft with an electric propulsion system.
ZeroPayloadDistance	Maximum straight-line distance achievable in specified time.
ZeroPayloadTime	Solve for minimum time to achieve a straight-line distance (fzero).

Data

PlutoLander_Stowed.mat

CAD model of stowed lander

Demos/AlphaCentauri

AlphaCentauriFlyby	AlphaCentauri flyby at constant thrust
DataRateAlphaCentauri	Data Rate Alpha Centauri
StraightLineAlphaCentauri	Straight-line rendezvous to Alpha Centauri

Demos/ConstantThrust

DVLimitDemo	Delta-V limits for a selected mission
DVMapDemo	Demo of attainable DV for a given payload mass
DVvsTripTime	DV vs trip time demo for specific missions
DurationDemo	Solar system performance plot for straight-line trajectories.
MaxDistanceDemo	Demo of the mimimum time and maximum distance straight-line functions.
NASADemos	NASA roadmap mission point solutions to Jupiter, Pluto, 125 AU
NASAMissionChart	Mission capability chart using straight-line trajectories
OptimalImpulseDemo	Optimal impulse for straight-line trajectories
PayloadDemo	Straight-line payload study to 125 AU
PayloadFractionDemo	Payload fraction demo for a variety of reference missions
PointSolution	Straight line Point solution
TripTimeDemo	Trip time vs. power demo
UEVsSigma	Compute exhaust velocity vs specific power

Demos/Flyby

DistanceForFixedTime	>100 MW engine analysis to interstellar distances, flyby and rendezvous
FlybyForFixedTime	Straight-line, constant-thrust flyby demo

Demos/Rectilinear

RectilinearDemo

Demonstrate RectilinearMission - burn, coast, burn.

Demos/SLPowerLimited

PowerLimitedRocket	Power-Limited Rocket (SLPL) Demo
SLPLComparisonDemo	Compare a constant-thrust mission to optimal linear acceleration

Flyby

FlybyConstantThrust	Flyby distance and velocity for constant thrust.
FlybyOptimal	Compute exhaust velocity and thrust for a minimum mass trajectory (fmincon)
FlybyOptimalImpulse	Find exhaust velocity to maximise payload fraction (fminsearch)
FlybyReport	Report of engine properties for a straight-line flyby mission
SimulateFlyby	Straight line flyby simulation
SolveFlybyPower	Solve a flyby problem and compute engine power for the payload
SolveLambdaFlyby	Compute the payload fraction for a straight-line flyby (fminbnd).
ZeroPayloadFlyby	Compute the zero payload flyby distance for duration, or time for distance

Rectilinear

RectilinearMission	Generate a mission plan for a burn, coast burn mission.
RectilinearMotion	Simulate rectilinear motion.
TimeToVelocity	Compute the time to reach a given velocity.

SLPowerLimited

SLPLDataStructure	Straight-line, power-limited data structure
SLPLDeltaV	Compute delta-V of an ideal power-limited rocket (straight-line)
SLPLFindDistance	Finds duration, ideal power-limited rocket, straight-line trajectory
SLPLFindDuration	Finds duration, ideal power-limited rocket, straight-line trajectory
SLPLFindMass	Finds final mass, ideal power-limited rocket, straight-line trajectory
SLPLFindPower	Finds required power, ideal power-limited rocket, straight-line traj.
SLPLReport	Print a summary of an SLPL problem
SLPLSolver	Solve a straight-line power-limited rocket problem.
SLPLTrajectory	Compute trajectory for an ideal power-limited rocket (straight-line)

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