Abstract
As one kind of gas bearings, foil bearings that are commonly made of one top foil and at least one bottom foil, have many attractive advantages such as low power loss, wide work temperature range, high rotating speed, low maintenance cost, simple system construct, etc. Nevertheless, foil bearings also have some disadvantages including low carrying load at low speed, wear at start-stop procedure, not easy to predict bearing performance due to the complex bearing structure and so on.
For the sake of better understanding and further utilization of foil bearings, many researchers, institutions and countries have paid great attention to study these special rolling elements in recent decades. The purpose of this paper is to explore the research status of foil bearings performance based on the Web of Science datasets and related tools, meanwhile, the cooperative relationship among individuals or organizations is further studied. Moreover, to figure out influential countries, institutions and authors, the analysis of cited frequency is adopted. In addition, keywords frequency analysis and co-occurrence analysis are applied to explore the future trend of foil bearing. The results identify influential countries, institutions and authors in the research of foil bearings performance and show that whether in quantity or in quality, research of foil bearings performance in developed countries holds a significant lead over that in developing countries. Moreover, the current hot topics are figured out as well as future direction of development is predicted. This study presents intuitive state of research of foil bearings performance and proposes a fresh perspective for relevant researchers to perform foil bearings research in the future.
Zusammenfassung
Als eine Art von Gaslagern haben Folienlager, die üblicherweise aus einer oberen Folie und mindestens einer unteren Folie bestehen, viele attraktive Vorteile wie geringe Verlustleistung, großer Arbeitstemperaturbereich, hohe Drehzahl, geringe Wartungskosten, einfacher Systembau usw. Dennoch haben Folienlager auch einige Nachteile, darunter geringe Traglast bei niedriger Drehzahl, Verschleiß bei Start-Stopp-Verfahren, nicht einfach vorherzusagende Lagerleistung aufgrund der komplexen Tragstruktur und so weiter.
Um Folienlager besser zu verstehen und weiter zu nutzen, haben viele Forscher, Institutionen und Länder in den letzten Jahrzehnten große Aufmerksamkeit darauf verwendet, diese speziellen Wälzkörper zu untersuchen. Der Zweck dieses Papiers ist es, den Forschungsstatus der Leistung von Folienlagern basierend auf den Web of Science-Datensätzen und verwandten Werkzeugen zu untersuchen, während die kooperative Beziehung zwischen Einzelpersonen oder Organisationen weiter untersucht wird. Um einflussreiche Länder, Institutionen und Autoren herauszufinden, wird außerdem die Analyse der zitierten Häufigkeit durchgeführt. Darüber hinaus werden Schlüsselwörter Häufigkeitsanalyse und Co-Occurrence-Analyse verwendet, um den zukünftigen Trend der Folienlager zu untersuchen. Die Ergebnisse identifizieren einflussreiche Länder, Institutionen und Autoren in der Erforschung der Leistung von Folienlagern und zeigen, dass die Forschung zur Leistung von Folienlagern in Industrieländern einen signifikanten Vorsprung gegenüber der in Entwicklungsländern hat, ob quantitativ oder qualitativ. Darüber hinaus werden die aktuellen Top-Themen herausgefunden und die zukünftige Entwicklungsrichtung prognostiziert. Diese Studie präsentiert den intuitiven Forschungsstand der Leistung von Folienlagern und bietet eine neue Perspektive für relevante Forscher, um in Zukunft Folienlagerforschung durchzuführen.
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Acknowledgements
This work was supported by the Natural Science Foundation of Hunan Province, China under Grant 2018JJ2678 and the Natural Science Foundation of Shaanxi Province, China under Grant 2017JM5076. The authors also thank Christopher Dellacorte for his advice.
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This work was supported by the Natural Science Foundation of Hunan Province, China under Grant 2018JJ2678 and the Natural Science Foundation of Shaanxi Province, China under Grant 2017JM5076.
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Quan Zhou had the idea for the article and drafted the work, Yi Zhang performed the literature search and data analysis, Yu Hou critically revised the work.
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Zhou, Q., Zhang, Y. & Hou, Y. Research subjects and hot topics of foil bearings performance in recent twenty years: analysis and prediction. Forsch Ingenieurwes 85, 1029–1042 (2021). https://doi.org/10.1007/s10010-021-00565-9
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DOI: https://doi.org/10.1007/s10010-021-00565-9