{"paper":{"title":"Load Identification in Bistable Spacecraft Booms via Parametric Data-Driven Modeling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"A single parametric transfer-function model estimates loads on bistable spacecraft booms from velocity data alone.","cross_cats":[],"primary_cat":"math.DS","authors_text":"Austin Phoenix, Deven H. Mhadgut, Jonathan Black, Linus Balicki, Samantha Parry Kenyon, Serkan Gugercin","submitted_at":"2026-05-13T17:43:50Z","abstract_excerpt":"Bistable tape spring booms are used on spacecraft for their ability to self-deploy using stored strain energy. However, their uncontrolled deployment can induce mechanical shocks that are variable as a function of material properties and temperature, and may damage sensitive satellite components and disrupt attitude control. Because traditional Finite Element Analysis (FEA) struggles to accurately capture this highly nonlinear behavior, we solve the inverse problem to estimate these loads from dynamic response measurements. Previous data-driven approaches using Vector Fitting required time-con"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"The single parametric model outperformed the best discrete non-parametric case, reducing the total relative force estimation error for the reference signal by nearly 38%.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That a parametric model fitted to only 15 discrete load levels will accurately capture the continuous nonlinear dependence on load amplitude and generalize to arbitrary input waveforms without overfitting or missing unmodeled dynamics.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A parametric data-driven model built with p-AAA reduces relative force estimation error by nearly 38% versus the best non-parametric model while generalizing across load amplitudes and input waveforms.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"A single parametric transfer-function model estimates loads on bistable spacecraft booms from velocity data alone.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"57995fac7d318d95bc3a07db6d6292a9d3e68a4749594a198ae69aa6134828f1"},"source":{"id":"2605.13818","kind":"arxiv","version":1},"verdict":{"id":"5fb67cd8-e109-4aa4-9a0d-007e077550a6","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-14T17:33:13.995326Z","strongest_claim":"The single parametric model outperformed the best discrete non-parametric case, reducing the total relative force estimation error for the reference signal by nearly 38%.","one_line_summary":"A parametric data-driven model built with p-AAA reduces relative force estimation error by nearly 38% versus the best non-parametric model while generalizing across load amplitudes and input waveforms.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That a parametric model fitted to only 15 discrete load levels will accurately capture the continuous nonlinear dependence on load amplitude and generalize to arbitrary input waveforms without overfitting or missing unmodeled dynamics.","pith_extraction_headline":"A single parametric transfer-function model estimates loads on bistable spacecraft booms from velocity data alone."},"references":{"count":54,"sample":[{"doi":"","year":2011,"title":"Thin-walled composite deplo yable booms with tape-spring hinges,","work_id":"155a85b0-ffca-4530-9b90-9e6c906973fc","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1061/(asce)as.1943-5525.0000709","year":2017,"title":"Deployment of Bistable Self-Deployable Tape Spring Booms Using a Gravity Offloading System,","work_id":"b928c003-6770-4aff-b3c0-13c040514ae7","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.2514/1.j052269","year":2013,"title":"Folding, stowage, and dep loyment of viscoelastic tape springs,","work_id":"01f208da-a7eb-4856-817e-f56ae1af34ad","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1115/1.4031618","year":2016,"title":"Effec ts of Long-Term Stowage on the Deployment of Bistable Tape Springs,","work_id":"0752f1af-330d-4ca1-8cab-1f1d8a1e43f7","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.2514/6.2020-118","year":2020,"title":"Impact of storage time and operational temperature on deployable composite booms,","work_id":"6d7dcd7d-5640-4cfa-b7a0-1a53728954ff","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":54,"snapshot_sha256":"2aa6a3c983cdc3a46fa8298631faeee185e96e5002a0c90c08863edc8a89fa2d","internal_anchors":0},"formal_canon":{"evidence_count":2,"snapshot_sha256":"61732e5e348e3d4f65e7a7b77c497d117fbaed40e588952a7b83bd29efd7a0d5"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}