A
Aino Helle
Researcher at VTT Technical Research Centre of Finland
Publications - 10
Citations - 173
Aino Helle is an academic researcher from VTT Technical Research Centre of Finland. The author has contributed to research in topics: Lubrication & Prognostics. The author has an hindex of 6, co-authored 10 publications receiving 152 citations.
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Twin disc micropitting tests
TL;DR: In this paper, the effect of surface roughness, lubricant type and surface treatment on micropitting performance of two case hardening steels was investigated. And the test results showed that the roughness of the gear has a major impact on the microphitting performance.
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Structural characterization and tribological evaluation of quince seed mucilage
Timo J. Hakala,Vesa Saikko,Suvi Arola,Suvi Arola,Tiina Ahlroos,Aino Helle,Petri Kuosmanen,Kenneth Holmberg,Markus Linder,Markus Linder,Päivi Laaksonen,Päivi Laaksonen +11 more
TL;DR: In this paper, the authors showed that quince mucilage is a native nanocellulose material with a notable ability to lower friction and showed that the mucilage was able to reduce the coefficient of friction of polyethylene/stainless steel contact.
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Adhesion and tribological properties of hydrophobin proteins in aqueous lubrication on stainless steel surfaces
Timo J. Hakala,Päivi Laaksonen,Päivi Laaksonen,Vesa Saikko,Tiina Ahlroos,Aino Helle,Riitta Mahlberg,Hendrik Hähl,Karin Jacobs,Petri Kuosmanen,Markus Linder,Kenneth Holmberg +11 more
TL;DR: In this paper, the affinities of two different proteins, HFBI and FpHYD5, on stainless steel and their ability to bind water at the surface by combining quartz crystal microbalance (QCM-D) and ellipsometry were investigated.
Prognostics for industrial machinery availability
TL;DR: This article will present a method to integrate the tribological knowledge into monitoring and diagnostics techniques, show how the step from diagnostics to prognostics can be taken, outline a new European concept for IT-based maintenance and show the benefit of networked global diagnostic centres.
Journal ArticleDOI
Biomimetic approach to water lubrication with biomolecular additives
Tiina Ahlroos,Timo J. Hakala,Aino Helle,Markus Linder,Kenneth Holmberg,Riitta Mahlberg,Päivi Laaksonen,Simo Varjus +7 more
TL;DR: In this article, hydrophobin and albumin proteins are used as additives to enable water lubrication, and they can form films and multilayers on the surfaces and thus prevent direct contact between them.