Crate hpr_motor 

Solid rocket motor model (thrust, propellant mass, CG and inertia over time), .eng/.rse reading and writing, and catalog types.

Guide: Solid motors, .eng files and .rse files: the models, their sources, how well they are validated and what they leave out.

• curve: thrust curves, total impulse, NFPA 1125 burn time and average thrust.
• class: impulse classes (1/8A to O and beyond).
• motor: the solid motor: consumption, mass properties and ambient-pressure thrust, with grains (BATES grains) and mass (axisymmetric mass elements).
• eng and rse: RASP and RockSim motor files, with delay strings.
• catalog: the offline catalog and its bundled ThrustCurve.org curves.

Re-exports

pub use catalog::Catalog;

pub use catalog::CatalogCurve;

pub use catalog::CatalogMotor;

pub use class::ImpulseClass;

pub use curve::ThrustCurve;

pub use delay::Delay;

pub use delay::DelayList;

pub use delay::DelayWarning;

pub use error::MotorError;

pub use grains::BatesGrains;

pub use grains::GrainShape;

pub use mass::MassElement;

pub use motor::EXHAUST_VELOCITY_RANGE_M_S;

pub use motor::MotorState;

pub use motor::Nozzle;

pub use motor::Propellant;

pub use motor::PropellantColumn;

pub use motor::SolidMotor;

pub use text::ParseWarning;

pub use text::Parsed;

pub use text::WarningKind;

Modules

catalog

An offline motor catalog: motor metadata, thrust curves, and each curve’s provenance and license.

class

Impulse classes: the letter in a motor’s designation that bands its total impulse.

convert

Converting motor files between RASP .eng and RockSim .rse.

curve

Thrust curves: thrust against time, and the impulse, burn time and average thrust derived from them.

delay

Ejection delays: the time from burnout to the ejection charge, or none for a plugged motor.

eng

RASP .eng motor files: reading and writing, built from the public spec (docs/format/eng.md).

error

Error types for the motor model, its file formats and the catalog.

grains

BATES grains: a stack of identical hollow cylindrical grains that burn on their bores and, unless inhibited, on both ends.

mass

Axisymmetric mass elements: a mass on the motor axis with its own axial and transverse moments of inertia, and how elements combine.

motor

The solid motor model: thrust, propellant consumption, and the motor’s mass, center of mass and inertia at any time in the burn.

rse

RockSim .rse motor files: reading and writing (docs/format/rse.md).

text

Shared pieces of the text formats: parse warnings and number reading.