{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T17:44:56Z","timestamp":1782841496688,"version":"3.54.5"},"reference-count":0,"publisher":"ECMS","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,6,23]]},"abstract":"<jats:p>Flexible, non-rigid packages (polybags) are an increasing share of courier, express, and parcel (CEP) flows, yet they remain difficult for conveyor and sorter systems optimized for rigid parcels. Shape instability, variable friction, and contact-rich interactions cause unpredictable motion (e.g., folding, bouncing, lateral drift), leading to conservative spacing rules, throughput losses, and manual intervention. While physics-based simulation enables systematic \u201cwhat-if\u201d studies, outer-loop design and screening require many evaluations and quickly become computationally prohibitive.\n\nThis paper presents a framework and case-study design for multi-fidelity modelling of deformable packages in logistics. A high-fidelity (HF) reference based on multi flexible body dynamics (MFBD) is contrasted with low-fidelity (LF) real-time deformable simulation candidates (e.g., PhysX-based position-based cloth and GPU-accelerated FEM). The approach uses multi-fidelity surrogate modelling (MFSM) to combine many LF runs with a budget-limited HF subset, targeting decision-relevant logistics KPIs (transit time, exit lateral position, and occupancy heatmaps).\n\nWe contribute (i) a capability- and budget-driven fidelity-tier selection and (ii) a KPI-oriented workflow (flowcharts) for alignment, calibration, nested sampling, MFSM training, and staged validation. Quantitative evaluation is planned for follow-up work.<\/jats:p>","DOI":"10.7148\/2026-0583","type":"proceedings-article","created":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T16:55:14Z","timestamp":1782838514000},"page":"583-590","source":"Crossref","is-referenced-by-count":0,"title":["Physics-based multi-fidelity modelling for deformable packages in logistics: framework and case study design"],"prefix":"10.7148","author":[{"given":"Gabriel","family":"Leitner","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander","family":"Ortner-Pichler","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patrick","family":"Kroepfl","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christian","family":"Landschuetzer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"4144","published-online":{"date-parts":[[2026,6,23]]},"event":{"name":"40th ECMS International Conference on Modelling and Simulation"},"container-title":["ECMS 2026 Proceedings edited by Filippo Sanfilippo, Florenc Demrozi, Fabio Sgarbossa, Mohammad Poursina"],"original-title":[],"deposited":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T16:55:21Z","timestamp":1782838521000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.scs-europe.net\/dlib\/2026\/ecms2026acceptedpapers\/0583_simo_ecms2026_0088.pdf"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,6,23]]},"references-count":0,"URL":"https:\/\/doi.org\/10.7148\/2026-0583","relation":{},"subject":[],"published":{"date-parts":[[2026,6,23]]}}}