{rfName}
Me

Indexed in

License and Use

Icono OpenAccess

Altmetrics

Analysis of institutional authors

Fernández-Soler, AlejandroCorresponding AuthorGarcia-Perez, AndresAuthorPerez-Alvarez, JavierAuthorAlonso, GustavoAuthorGarcia-Moreno, LauraAuthor

Share

November 26, 2024
Publications
>
Article
Hybrid Gold

Methodology for robust analysis of bolts slippage in cryogenic space missions

Publicated to: ACTA ASTRONAUTICA. 226 570-584 - 2025-01-01 226(), DOI: 10.1016/j.actaastro.2024.10.048

Authors:

Fernandez-Soler, Alejandro; Garcia-Perez, Andres; Morgante, Gianluca; Perez-Alvarez, Javier; Alonso, Gustavo; Garcia-Moreno, Laura; Scippa, Antonio; Gottini, Daniele; Del Vecchio, Ciro
[+]

Affiliations

Inst Univ Microgravedad Ignacio Riva IDR, Univ Politecn Madrid UPM, Escuela Tecn Super Ingn Aeronaut & Espacio ETSIAE, Pza Cardenal Cisneros 3, Madrid 28040, Spain - Author
Ist Nazl Astrofis INAF, Osservatorio Astrofis & Sci Spazio OAS, Via Piero Gobetti 93-3, I-40129 Bologna, Italy - Author
Ist Nazl Astrofis INAF, Osservatorio Astrofisico Arcetri OAA, Largo E Fermi 5, I-50125 Florence, Italy - Author
Univ Firenze UniFI, Dipartimento Ingn Industriale, via St Marta 3, I-50139 Florence, Italy - Author
See more

Abstract

The assessment of slippage in cryogenic space missions is fundamental from a mechanical point of view as it is one of the main failure modes of a bolt in a mechanical interface. It is usually performed on the basis of temperature maps obtained from the worst-case thermal design cases, with particular interest in the transient case during the cooldown. Traditionally, the thermal mapping has to be transferred to the detailed FEM model. This process requires a lot of interaction between the thermal and structural disciplines, which is often not easy. Moreover, the thermal mapping usually corresponds to the instant of maximum gradient between the clamped parts along the transient case. In this paper, a new methodology is proposed to speed up the evaluation of the temperature effect on the slippage from an analytical model correlated with the FEM model. Then, the interactions between the structural and the thermal responsible may be reduced. In addition, the proposed methodology evaluates the entire temperature curve of the transient case, rather than a single instant. In this way, the thermal effect on slippage can be evaluated in a robust and agile process, facilitating the definition of requirements in terms of the maximum allowable temperature gradient as a function of preload or vice versa. This methodology has been validated with the primary mirror of the ARIEL mission, which is a cryogenic European mission that aims to study exoplanets by making observations from a thermally stable orbit at L2 point of the Sun-Earth system. Therefore, the correct design of the primary mirror is essential for the successful science observations of the mission.
[+]

Keywords

ArielCooldownCryogenic space telescopCryogenic space telescopeCryogenicsExoplanetsOrbitsPrimary mirrorPrimary mirrorsSlippageSpace missionsSpace telescopesStop analysisStop analyzeThermalThermal analysisThermal gradientsThermal mappingThermal modelingThermoelastic analysisTropics

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, 2025, it was in position 10/55, thus managing to position itself as a Q1 (Primer Cuartil), in the category Engineering, Aerospace.

[+]

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 2026-04-27:

  • 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: 3 (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/85119/

    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: 165
    • Downloads: 131
    [+]

    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 (FERNANDEZ SOLER, ALEJANDRO JOSE) .

    the author responsible for correspondence tasks has been FERNANDEZ SOLER, ALEJANDRO JOSE.

    [+]

    Project objectives

    Los objetivos perseguidos en esta aportación se centran en mejorar la evaluación del deslizamiento de pernos en misiones espaciales criogénicas. Se pretende analizar el efecto de la temperatura en el deslizamiento mediante un modelo analítico correlacionado con el modelo FEM. Evaluar la curva completa de temperatura durante el caso transitorio, en lugar de un único instante, para una valoración más robusta y ágil. Reducir la interacción entre los responsables térmicos y estructurales en el proceso de análisis. Facilitar la definición de requisitos en términos del gradiente máximo de temperatura admisible en función de la precarga. Validar la metodología propuesta con el espejo primario de la misión ARIEL, garantizando un diseño adecuado para observaciones científicas exitosas.
    [+]

    Most relevant results

    La aportación presenta una metodología innovadora para el análisis robusto del deslizamiento de pernos en misiones espaciales criogénicas. Los resultados más relevantes son: se desarrolla un modelo analítico correlacionado con un modelo FEM que agiliza la evaluación del efecto térmico sobre el deslizamiento; se reduce la interacción necesaria entre los equipos estructurales y térmicos; se evalúa la curva completa de temperatura durante el transitorio, no solo un instante máximo; se facilita la definición de requisitos en gradientes térmicos máximos permisibles en función de la precarga; y se valida la metodología con el espejo primario de la misión ARIEL, garantizando su aplicabilidad en condiciones reales de misión.
    [+]

    Awards linked to the item

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