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Engineering case studies · 09 entries

Projects

Nine case studies spanning spacecraft systems, flight software, structural analysis, mechanical design and controls. Filter by the discipline you are hiring for — each project links straight to the results, code or engineering artifacts behind it.

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Engineering domains

01 / GNC●

Estimation & control

Relative navigation, autonomy, flight dynamics, Monte Carlo and closed-loop verification.

View GNC work

02 / SOFTWARE●

Flight software & V&V

C++ flight logic, FDIR, command/telemetry, target execution and regression evidence.

View software work

03 / STRUCTURES + CAD●

Mechanical design

SolidWorks assemblies, parametric CAD, stress substantiation, FEA and damage tolerance.

View mechanical work

04 / SYSTEMS●

Requirements & reviews

Traceability, interfaces, change control, technical reviews and verification planning.

View systems work

Project registerSTATUS BOARD

ID	Project	Domain	Key result	Status	Run it
PRJ-10	ORBITALIS-RPO	Spacecraft GNC / RPO	200-run frozen SIL campaign; 0 truth-level keep-out violations	Verified SIL	Autonomy guards
PRJ-01	GHOST-X	Controls / state estimation	48.28 s hardware run; 2.451 s measured vision gap	Hardware + SIL	Occlusion tracker
PRJ-02	ASTRA-OS	Flight software / V&V	20/20 native tests; deterministic FDIR and regression campaigns	Verified baseline	Packet + FDIR
PRJ-08	AeroFrame-DT	Structures / CAD / FEA	18/18 requirements; +0.151 margin; 5-variant attachment trade	Verified structural record	e/D margin sweep
PRJ-06	TAMU-SPIRIT ISS Payload	Systems engineering	100% milestone compliance across four ISS-bound payloads	Active	Thermal trade
PRJ-09	Fixed-Wing Flight Controls SIL	Controls / verification	Representative SIL; 50/50 finite seeded runs	Verified software	Altitude capture
PRJ-07	MD-11 Aircraft CAD Assembly	Mechanical design / CAD	24-part SolidWorks assembly, drawing workflow and Parasolid export	CAD study	Three-view
PRJ-05	Interception Robot	Autonomy / embedded	<100 ms perception-to-actuation latency	Complete	Latency budget
PRJ-03	Rocket Landing GNC	Controls / simulation	Exploratory landing-controls prototype	Prototype	Powered descent

PRJ-10

ORBITALIS-RPO spacecraft rendezvous, relative navigation, guidance, autonomy and verification architecture.

InteractiveVerified SIL baselineRPO / GNC

ORBITALIS-RPO: Spacecraft Rendezvous & Proximity Operations

Relative navigation · constrained guidance · 6-DOF · autonomy · C++20 verification

System

Software-in-the-loop spacecraft inspection and RPO spanning relative dynamics, asynchronous navigation, constrained guidance, quaternion 6-DOF propagation, autonomy and retreat logic.

Evidence

200 frozen cases retained 132 full missions, 62 safe abort-retreats, six timeouts and zero truth-level keep-out violations. The C++20 core passed 96/96 frozen Python-reference vectors.

200

Frozen SIL cases

132

Full missions

Keep-out violations

96/96

C++ vectors

PythonC++20Relative Navigation6-DOFMonte Carlo

See how it flies Read the code Drive the autonomy guards

PRJ-01

xpiredruby.github.io/ghost-vins-eskf/

OPEN FULL SITE ↗

InteractiveHardware + deterministic software evidenceGNC / ESTIMATION

GHOST-X: Occlusion-Tolerant Target Estimation

ROS 2 · Raspberry Pi · AprilTag · IMM · deterministic replay

Measured hardware

48.28 s Raspberry Pi run with 655 vision measurements and 30.01 Hz estimator output. A separate guided campaign measured a 2.451 s vision gap and reacquisition without reset.

Software truth

Frozen deterministic estimator evaluation and closed-loop SIL are kept separate from physical-camera claims.

48.28 s

Hardware run

655

Vision measurements

2.451 s

Measured vision gap

24/24

Controlled trials

See how it works Take it for a spin Run the estimator

PRJ-02

xpiredruby.github.io/AstraSim-FSW/

OPEN FULL CONSOLE ↗

InteractiveVerified baselineFLIGHT SOFTWARE

ASTRA-OS: Spacecraft-Style Flight Software

C++17 · FDIR · command/telemetry · deterministic assurance · aarch64

System

Deterministic spacecraft-style flight software with operational modes, command/telemetry, FDIR, bounded recovery, typed events and configuration-controlled verification.

Evidence

Native tests, browser/Python tests, deterministic scenarios, protocol conformance, seeded Monte Carlo and target execution are independently retained.

20/20

Native tests

35/35

Python / browser

10/10

FDIR cases

129/129

Policy evaluation

See how it works Poke the console Break a packet

PRJ-08

ANSYS equivalent-stress contour for the AeroFrame-DT pylon attachment fitting.

Interactive18 / 18 requirements verifiedSTRUCTURES / FEA

AeroFrame-DT: Structural Substantiation & Pylon Attachment Trade Study

Parametric CAD · hand calculations · nonlinear FEA · allowables · fatigue / damage tolerance

Engineering scope

Controlled geometry and loads carried through hand analysis, nonlinear FEA, material allowables, fatigue, damage tolerance, manufacturing sensitivity and formal verification.

Released result

The final 7050-T7451 configuration closed 18/18 requirements with a +0.151 governing margin. FE force equilibrium closed to 0.006% and the five-variant e/D study retained the failure-mode transition.

+0.151

Governing margin

18/18

Requirements

0.006%

FE equilibrium

e/D variants

Check my working Read the code Sweep the e/D trade

PRJ-06

Concept visualization of integrated spaceflight payload hardware on a clean-room test bench.

InteractiveActive systems engineeringISS PAYLOADS

TAMU-SPIRIT: ISS Payload Systems Engineering

Requirements · verification planning · technical reviews · thermal trades

Scope

Requirements traceability, verification artifacts, engineering changes, hardware readiness and formal review actions across four ISS-bound experiments.

100%

Milestone compliance

ISS payloads

Team members

SCR/SRR/PDR

Review gates

See how it works Trade the thermal pair

PRJ-09

FIXED-WING SOFTWARE-IN-THE-LOOPAircraft dynamics → autopilot → disturbances → verificationcoupled longitudinal / lateral-directional model · bounded actuators · sensor errors · seeded uncertainty

InteractiveVerified softwareCONTROLS / SIL

Fixed-Wing Flight Controls SIL

Coupled aircraft dynamics · autopilot loops · deterministic disturbances · seeded Monte Carlo

Scope

Representative fixed-wing SIL with coupled longitudinal and lateral-directional dynamics, bounded actuators, sensor errors, gust disturbances and regression checks.

50/50

Finite seeded runs

SIL

Verification level

Coupled axis sets

Dispersion checks

See how it works Fly the capture

PRJ-07

InteractiveSolidWorks CAD studyMECHANICAL DESIGN

MD-11 Aircraft CAD Assembly

Parametric aircraft modeling · assembly design · drawing workflow · Parasolid export

CAD scope

24-part full-aircraft SolidWorks assembly with controlled component relationships, native drawing output, bill-of-material workflow and a neutral Parasolid export.