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500ft/README.md

Mergen Ulziibayar

Mechanical engineering student at NYU building evidence-driven robotics and mechanical systems: Predict → Measure → Compare → Revise.

My strongest work is organized around explicit acceptance gates, reproducible analysis, and honest negative results—not just finished-looking demos. Where a result is simulation-only or a measurement is still pending, the repository says so.

Flagship work

When should a soft robot recalibrate? A reproducible simulation study of pressure–volume probes and pressure-only pose estimation. Across 2,000 actuator-split traces, P-V loop area tracks fatigue compliance drift at pooled r = 0.885, and the deployed trigger has no positive temporal lead—a limitation reported rather than tuned away. The archived v1.3 manuscript carries a published correction notice for a methods overstatement; a corrected candidate is under author review, with no DOI or arXiv identifier claimed.

F1TENTH-scale vehicle modeling, system identification, controls, ROS 2 telemetry, and LiDAR-mast structural design. The baseline mast failed its ≥200 Hz modal guard at 174.7 Hz; the redesigned geometry clears it at 285.5 Hz in mesh-converged FEA, a 1.43× margin. A calibrated physical compliance test is preregistered and measurement is pending.

Guarded micro-UAV release-to-recovery study. The robustness sweep recovers only 4.0% under placeholder torque; an assumed four-motor mixer combined with a revised controller recovers 300/300 in the reported sweep—not an isolated torque fix. The deciding 7.0 V bench gate is frozen at 0.020 N·m with at least 962/1,000 primary recovery trials; measurement is pending.

Supporting projects

  • engineering-audit — CLI and benchmark suite that checks units, formulas, assumptions, and arithmetic in LLM-generated engineering calculations, with hash-verified capture provenance.
  • segmented-shroud-aeromechanics — measurement-first research design on segmented rotor-shroud defects and tip clearance.
  • uav-failsafe-composition — configuration-specific native UAV recovery after command loss, with falsifiable fleet-composition experiments.
  • sensor-enclosure-thermal-design — analytical thermal design and day/night test preparation for outdoor sensor enclosures.
  • informal-road-mapping — satellite screening for candidate informal-road corridors; synthetic tests, Mongolia validation pending.
  • Nomad — maps mechanical-engineering topics to ranked papers, researchers, and source-linked project ideas.

Links

Python · CAD/FEA · ROS 2 · controls · system identification · experimental design

Pinned Loading

  1. informal-road-mapping informal-road-mapping Public

    Research prototype for screening satellite surface disturbance and extracting candidate informal-road corridors. Synthetic tests; Mongolia validation pending.

    Python 2

  2. sensor-enclosure-thermal-design sensor-enclosure-thermal-design Public

    Analytical thermal design, literature evidence and day/night test preparation for outdoor sensor enclosures. Physical validation remains pending.

    Python 1

  3. soft-actuator-recalibration soft-actuator-recalibration Public

    Simulation study of pressure–volume probes for scheduling soft-actuator recalibration, with reproducible policy comparisons and explicit evidence limits.

    Python 1

  4. autonomous-racing-systems autonomous-racing-systems Public

    F1TENTH-scale vehicle modeling, controls, ROS 2 telemetry and LiDAR-mast engineering, with reproducible simulation, nominal CAD and FEA evidence.

    Python 1 1

  5. multirotor-recovery-dynamics multirotor-recovery-dynamics Public

    Release-recovery dynamics, uncertainty analysis and propulsion-bench preparation for a protected micro-UAV. Simulation and nominal CAD; physical tests pending.

    Python 1

  6. uav-failsafe-composition uav-failsafe-composition Public

    Research design for configuration-specific native UAV recovery after command loss, with provenance tooling and falsifiable fleet-composition experiments.

    Python 1