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Grant support

This work has been funded by the Spanish ministry "Ministerio de Ciencia e Innovacion" through project ARIEL_SCITECH with grant number PID2021-125627OB-C33.

Analysis of institutional authors

Garcia-Perez, AndresCorresponding AuthorFernández-Soler, AlejandroAuthorPerez-Alvarez, JavierAuthorAlonso, GustavoAuthorGarcia-Moreno, LauraAuthor

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November 26, 2024
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Temperature mapping methods for thermoelastic analyses of the ARIEL spacecraft payload module

Publicated to:Acta Astronautica. 223 77-97 - 2024-10-01 223(), DOI: 10.1016/j.actaastro.2024.07.009

Authors: Garcia-Perez, Andres; Fernandez-Soler, Alejandro; Morgante, Gianluca; Perez-Alvarez, Javier; Alonso, Gustavo; Garcia-Moreno, Laura; Scippa, Antonio; Gottini, Daniele; Lilli, Riccardo

Affiliations

Ist Nazl Astrofis INAF, Osservatorio Astrofis & Sci Spazio OAS, Via Piero Gobetti 93-3, I-40129 Bologna, Italy - Author
Univ Firenze UniFI, Dipartimento Ingn Ind, Via St Marta 3, I-50139 Florence, Italy - Author
Univ Politecn Madrid UPM, Inst Univ Microgravedad Ignacio Da R IDR, Escuela Tecn Super Ingn Aeronaut & Espacio ETSIAE, Pza Cardenal Cisneros 3, Madrid 28040, Spain - Author

Abstract

The ARIEL mission is a European space project that aims to detect exoplanets with a spacecraft orbiting around the L2 point of the Sun-Earth system. The main payload consists of a Cassegrain telescope composed of mirrors that reflect and concentrate the incoming light from the deep space observations to finally guide it to the detectors. As in many other space missions, a dedicated complex assessment is established during the design phase to evaluate the impact on the optical performance caused by thermoelastic effects, which involves the coordinated work of the thermal, structural, and optical engineers. Despite that well-known and standardized processes and tools are established separately in each involved area, there is a lack of standardization about the way of exchanging the data between them, where additional calculations are required in some cases. This work focuses on the temperature mapping, which is the intermediate step between thermal and structural analyses, where temperatures are transferred to the structural model. The main difficulty of this process is related to the differences in modelling methods and approaches between both models, being necessary the development of an adequate algorithm to find the most accurate transfer of temperatures. This paper shows two different options for temperature mapping, detailing the proposed flowcharts. One of these methods requires the performance of an additional thermal conductive analysis, where a new improved procedure has been implemented in this work to solve some computational issues that made its application for large models difficult or even unfeasible. Both temperature mapping methods have been applied to the payload module of the ARIEL spacecraft, comparing the output results in terms of temperatures, stresses, forces, and displacements to evaluate their differences.

Keywords

ArielPrescribed average temperatureStop analysisTemperature mappingThermal analysisThermoelastic analysiThermoelastic analysis

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Acta Astronautica due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2024 there are still no calculated indicators, but in 2023, it was in position 10/55, thus managing to position itself as a Q1 (Primer Cuartil), in the category Engineering, Aerospace.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-09-19:

  • Google Scholar: 1
  • WoS: 1
  • Scopus: 1

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-09-19:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 5 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

    It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

    • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
    • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/83957/

    As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

    • Views: 158
    • Downloads: 71

    Leadership analysis of institutional authors

    This work has been carried out with international collaboration, specifically with researchers from: Italy.

    There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Garcia Perez, Andres) .

    the author responsible for correspondence tasks has been Garcia Perez, Andres.