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http://dx.doi.org/10.14775/ksmpe.2019.18.10.048

The Causes of Bolt Breakage During the Tightening of Impellers in Water Jet Propulsion Systems  

Jung, Sang-Jin (Department of Mechanical System Engineering, Kumoh National Institute of Technology)
Oh, Shini Il (Zeus Institute Development Division 1)
Hur, Jang-Wook (Department of Mechanical System Engineering, Kumoh National Institute of Technology)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.18, no.10, 2019 , pp. 48-53 More about this Journal
Abstract
A water jet propeller is a key component that generates propulsion during the start of a naval vessel. When failure or breakage occurs, the vessel cannot operate. Recently, a flow analysis and structural analysis were conducted to understand the cause of damage to a bolt on a water jet. In particular, the stress and strain acting on the fastening bolt (impeller shaft and tail shaft) were examined to determine the extent of misalignment between the impeller shaft and the tail shaft of the water jet propeller. The study determined that stress and strain were concentrated on the impeller shaft and the tail shaft bolt. The alignment of the propeller impeller shaft and the tail shaft increased significantly in response to the tail shaft bolt. Failure of the tail shaft bolt fastening can lead to misalignment between the impeller shaft and the tail shaft.
Keywords
Flow Analysis; Structural Analysis; Water Jet; Bolt Breakage; Shaft Alignment;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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