{
  "annotation_id": "a2455056-ba09-430a-9c3f-4e2d862dcf65",
  "date_created": "2026-03-02T18:00:53.352000Z",
  "date_modified": "2026-03-02T18:00:53.352000Z",
  "file_hash": "a3665aef72609ecf83b1fd8fc34439d06fc4a10e51177c512eb33b2be2e4483b",
  "private": false,
  "record": {
    "abstract": "The steady state motion of a folded pendulum has been studied using\nfrequencies of drive that are mainly below the natural (resonance) frequency of\nthe instrument. Although the free-decay of this mechanical oscillator appears\ntextbook exponential, the steady state behavior of the instrument for\nsub-resonance drive can be remarkably complex. Although the response cannot be\nexplained by linear damping models, the general features can be understood with\nthe nonlinear, modified Coulomb damping model developed by the author.",
    "arxiv_id": "physics/0408091",
    "authors": [
      "Randall D. Peters"
    ],
    "categories": [
      "physics.class-ph",
      "physics.ed-ph"
    ],
    "title": "Beyond the Linear Damping Model for Mechanical Harmonic Oscillators",
    "url": "https://arxiv.org/abs/physics/0408091"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "69e35116-78ed-4261-bfbc-16f2720569b1",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}