Electrostatic charging of the NH90 helicopter

Hannu Salmela (Corresponding Author), Tapio Kalliohaka, Matti Lehtimäki, M. Harkoma

    Research output: Contribution to journalArticleScientificpeer-review

    4 Citations (Scopus)

    Abstract

    This article discusses electrostatic charging of the NH90 medium transport/utility helicopter and assesses the safety of transported products against electrostatic discharges originated from the helicopter. Key questions were to determine charging characteristics of the composite material body NH90 compared to metal body helicopters as well as the charging levels in typical operating situations and climate conditions in Northern Europe. Most attention was paid to a situation where a load was winched to ground from a levitating helicopter at 40–80 feet altitudes. The measurements were supported with a simplified numeric simulation model and calculations of the charging of the helicopter.

    According to the study, there is no significant difference in electrostatic charging characteristics between composite body NH90 helicopter and metal body helicopters. The tight grounding net of the NH90 helicopter enables the charge currents to discharge in the same manner as in metal body helicopters. In all measured situations, the electrostatic charging of the NH90 or a person moving inside the helicopter is under the transport requirements depicted in the standard STANAG 4235.
    Original languageEnglish
    Pages (from-to)368-372
    Number of pages5
    JournalJournal of Electrostatics
    Volume71
    Issue number3
    DOIs
    Publication statusPublished - 2013
    MoE publication typeA1 Journal article-refereed
    Event12th International Conference on Electrostatics - Budapest, Hungary
    Duration: 17 Apr 201319 Apr 2013

    Fingerprint

    helicopters
    Aircraft
    Static Electricity
    Helicopters
    charging
    Electrostatics
    electrostatics
    Metals
    metals
    Electrostatic discharge
    composite materials
    Composite materials
    Electric grounding
    Climate
    climate
    safety
    Safety
    requirements

    Keywords

    • electrostatic charging
    • ESD
    • helicopter
    • NH90

    Cite this

    Salmela, Hannu ; Kalliohaka, Tapio ; Lehtimäki, Matti ; Harkoma, M. / Electrostatic charging of the NH90 helicopter. In: Journal of Electrostatics. 2013 ; Vol. 71, No. 3. pp. 368-372.
    @article{87a3f64672944f63bf2ce9843fa19f6e,
    title = "Electrostatic charging of the NH90 helicopter",
    abstract = "This article discusses electrostatic charging of the NH90 medium transport/utility helicopter and assesses the safety of transported products against electrostatic discharges originated from the helicopter. Key questions were to determine charging characteristics of the composite material body NH90 compared to metal body helicopters as well as the charging levels in typical operating situations and climate conditions in Northern Europe. Most attention was paid to a situation where a load was winched to ground from a levitating helicopter at 40–80 feet altitudes. The measurements were supported with a simplified numeric simulation model and calculations of the charging of the helicopter.According to the study, there is no significant difference in electrostatic charging characteristics between composite body NH90 helicopter and metal body helicopters. The tight grounding net of the NH90 helicopter enables the charge currents to discharge in the same manner as in metal body helicopters. In all measured situations, the electrostatic charging of the NH90 or a person moving inside the helicopter is under the transport requirements depicted in the standard STANAG 4235.",
    keywords = "electrostatic charging, ESD, helicopter, NH90",
    author = "Hannu Salmela and Tapio Kalliohaka and Matti Lehtim{\"a}ki and M. Harkoma",
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    language = "English",
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    Salmela, H, Kalliohaka, T, Lehtimäki, M & Harkoma, M 2013, 'Electrostatic charging of the NH90 helicopter', Journal of Electrostatics, vol. 71, no. 3, pp. 368-372. https://doi.org/10.1016/j.elstat.2012.12.036

    Electrostatic charging of the NH90 helicopter. / Salmela, Hannu (Corresponding Author); Kalliohaka, Tapio; Lehtimäki, Matti; Harkoma, M.

    In: Journal of Electrostatics, Vol. 71, No. 3, 2013, p. 368-372.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Electrostatic charging of the NH90 helicopter

    AU - Salmela, Hannu

    AU - Kalliohaka, Tapio

    AU - Lehtimäki, Matti

    AU - Harkoma, M.

    PY - 2013

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    N2 - This article discusses electrostatic charging of the NH90 medium transport/utility helicopter and assesses the safety of transported products against electrostatic discharges originated from the helicopter. Key questions were to determine charging characteristics of the composite material body NH90 compared to metal body helicopters as well as the charging levels in typical operating situations and climate conditions in Northern Europe. Most attention was paid to a situation where a load was winched to ground from a levitating helicopter at 40–80 feet altitudes. The measurements were supported with a simplified numeric simulation model and calculations of the charging of the helicopter.According to the study, there is no significant difference in electrostatic charging characteristics between composite body NH90 helicopter and metal body helicopters. The tight grounding net of the NH90 helicopter enables the charge currents to discharge in the same manner as in metal body helicopters. In all measured situations, the electrostatic charging of the NH90 or a person moving inside the helicopter is under the transport requirements depicted in the standard STANAG 4235.

    AB - This article discusses electrostatic charging of the NH90 medium transport/utility helicopter and assesses the safety of transported products against electrostatic discharges originated from the helicopter. Key questions were to determine charging characteristics of the composite material body NH90 compared to metal body helicopters as well as the charging levels in typical operating situations and climate conditions in Northern Europe. Most attention was paid to a situation where a load was winched to ground from a levitating helicopter at 40–80 feet altitudes. The measurements were supported with a simplified numeric simulation model and calculations of the charging of the helicopter.According to the study, there is no significant difference in electrostatic charging characteristics between composite body NH90 helicopter and metal body helicopters. The tight grounding net of the NH90 helicopter enables the charge currents to discharge in the same manner as in metal body helicopters. In all measured situations, the electrostatic charging of the NH90 or a person moving inside the helicopter is under the transport requirements depicted in the standard STANAG 4235.

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    KW - ESD

    KW - helicopter

    KW - NH90

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