{ "access": { "embargo": { "active": false, "reason": null }, "files": "public", "record": "public", "status": "open" }, "created": "2020-03-11T10:22:48.265269+00:00", "custom_fields": { "meeting:meeting": { "acronym": "ASIDIC", "dates": "4-6 June 2019", "place": "Madrid, Spain", "title": "Aerospace structural impact dynamics international conference" } }, "deletion_status": { "is_deleted": false, "status": "P" }, "files": { "count": 1, "enabled": true, "entries": { "ASIDIC-2019 Comparative Analysis of Different Methods to Compute Ditching Loads.pdf": { "checksum": "md5:2e35d3164a92fe39cdc2551046402afd", "ext": "pdf", "id": "0a83db0d-4ab9-4148-8679-a03383b50889", "key": "ASIDIC-2019 Comparative Analysis of Different Methods to Compute Ditching Loads.pdf", "metadata": null, "mimetype": "application/pdf", "size": 2184436 } }, "order": [], "total_bytes": 2184436 }, "id": "3706511", "is_draft": false, "is_published": true, "links": { "access": "https://zenodo.org/api/records/3706511/access", "access_links": "https://zenodo.org/api/records/3706511/access/links", "access_request": "https://zenodo.org/api/records/3706511/access/request", "access_users": "https://zenodo.org/api/records/3706511/access/users", "archive": "https://zenodo.org/api/records/3706511/files-archive", "archive_media": "https://zenodo.org/api/records/3706511/media-files-archive", "communities": "https://zenodo.org/api/records/3706511/communities", "communities-suggestions": "https://zenodo.org/api/records/3706511/communities-suggestions", "doi": "https://doi.org/10.5281/zenodo.3706511", "draft": "https://zenodo.org/api/records/3706511/draft", "files": "https://zenodo.org/api/records/3706511/files", "latest": "https://zenodo.org/api/records/3706511/versions/latest", "latest_html": "https://zenodo.org/records/3706511/latest", "media_files": "https://zenodo.org/api/records/3706511/media-files", "parent": "https://zenodo.org/api/records/3706510", "parent_doi": "https://zenodo.org/doi/10.5281/zenodo.3706510", "parent_html": "https://zenodo.org/records/3706510", "requests": "https://zenodo.org/api/records/3706511/requests", "reserve_doi": "https://zenodo.org/api/records/3706511/draft/pids/doi", "self": "https://zenodo.org/api/records/3706511", "self_doi": "https://zenodo.org/doi/10.5281/zenodo.3706511", "self_html": "https://zenodo.org/records/3706511", "self_iiif_manifest": "https://zenodo.org/api/iiif/record:3706511/manifest", "self_iiif_sequence": "https://zenodo.org/api/iiif/record:3706511/sequence/default", "versions": "https://zenodo.org/api/records/3706511/versions" }, "media_files": { "count": 0, "enabled": false, "entries": {}, "order": [], "total_bytes": 0 }, "metadata": { "creators": [ { "affiliations": [ { "name": "Airbus Defence and Space" } ], "person_or_org": { "family_name": "Climent M\u00e1\u00f1ez", "given_name": "H.", "name": "Climent M\u00e1\u00f1ez, H.", "type": "personal" } }, { "affiliations": [ { "name": "Airbus Defence and Space" } ], "person_or_org": { "family_name": "Viana Lozoya", "given_name": "J.T.", "name": "Viana Lozoya, J.T.", "type": "personal" } }, { "affiliations": [ { "name": "Airbus Defence and Space" } ], "person_or_org": { "family_name": "S\u00e1nchez Iglesias", "given_name": "F.", "name": "S\u00e1nchez Iglesias, F.", "type": "personal" } }, { "affiliations": [ { "name": "Airbus Defence and Space" } ], "person_or_org": { "family_name": "Espinosa de los Monteros Garc\u00eda-Fr\u00edas", "given_name": "J.", "name": "Espinosa de los Monteros Garc\u00eda-Fr\u00edas, J.", "type": "personal" } } ], "description": "
Ditching is an emergency condition that ends with a planned “landing” of the aircraft on water. Four main phases may be considered in a ditching event: Approach, Impact, Landing and Floatation. This paper will address the loads aspects of the second phase, an extreme case of fluid-structure coupling where high pressures are developed during the impact of the sliding aircraft with water, which in turn may cause rupture of the structure, jeopardizing the required safe evacuation of crew and passengers.
\nThis problem is gathering significant attention from public and institutions especially after some recent events with large media coverage (like the ditching on the Hudson River, US Airways Flight 1549, 15 January 2009).
\nCurrently there are very few tools available to determine the loads generated during the ditching impact phase. This paper will present (and compare among them) ditching loads methodologies, one experimental and four different numerical simulation approaches:
\n- Experimentally measured ditching test results obtained in two European funded research projects: SMAES (Smart Aircraft in Emergency Situation, 2011-2014) and SARAH (Increased Safety and robust certification for ditching of aircrafts and helicopters, 2017-2019).
\n- Synthetic pressures derived analytically by matching SMAES experimental results.
\n- Smooth Particle Hydrodynamics (SPH) technique embodied in an explicit FEM code
\n- Computational Fluid Dynamics (CFD).
\n- Semi-Analytical Water Entry Approach
\nThe main objective of the paper is to compare different alternatives, decide which are currently the most suitable ditching loads methodologies that could be used to simulate this event during aircraft design and certification. The ditching loads have to be obtained as a function of the aircraft classical landing parameters (e.g. horizontal and vertical speed, pitch angle etc). and should be applicable to any aircraft geometry. The paper concludes with the application of these methodologies to a real case of a medium transport aircraft and suggestion for further research in this area.
This community collects the scientific peer-reviewed publications generated in the frame of the SARAH project.
\r\n", "page": "SARAH (Increased Safety and robust certification for ditching of aircrafts and helicopters) is a Horizon 2020 collaborative project, aiming at establishing novel holistic, simulation-based approaches to the analysis of aircraft ditching. The project is coordinated by IBK-Innovation and its consortium is built up from a consortium of experts from OEM industries, experienced suppliers of simulation technologies, established research institutions and representatives of the certification authorities. Results of SARAH are expected to support a performance-based regulation and certification for next generation aircraft and helicopter and to enhance the safe air transport as well as to foster the trustworthiness of aviation services.
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", "description": "Open repository for EU-funded research outputs from Horizon Europe, Euratom and earlier Framework Programmes.", "organizations": [ { "id": "00k4n6c32" } ], "page": "The EU Open Research Repository is a Zenodo-community dedicated to fostering open science and enhancing the visibility and accessibility of research outputs funded by the European Union. The community is managed by CERN on behalf of the European Commission.
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