著者
西嶋 規世 遠藤 彰 山口 和幸
出版者
一般社団法人日本機械学会
雑誌
年次大会 : Mechanical Engineering Congress, Japan
巻号頁・発行日
vol.2013, pp."J101022-1"-"J101022-3", 2013-09-08

Labyrinth seals have the potential to cause rotordynamic instability induced by the fluid force of seal flows. We conducted a computational fluid dynamics (CFD) study to investigate the rotordynamic characteristics of the shaft labyrinth seal of a steam turbine. The effects of different seal gap (0.42-0.85 mm) and seal length (47.6-357 mm) were systematically investigated. The predicted stiffness coefficients increased with increasing seal length as expected, but short seals (<100 mm) indicated stronger dependence on seal length. Stiffness coefficients of short seals also indicated strong dependence on seal gap, and increased inversely with decreasing gap, while stiffness coefficients of long seals depend less on seal gap.

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こんな論文どうですか? J101022 回転機械のラビリンスシールで発生する不安定流体力の数値解析(〔J101-02〕回転機械のダイナミック設計(2))(西嶋 規世ほか),2013 https://t.co/LuZNXQcnso

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