Difficulty of choice between 4- and 5-bladed propeller led to new design attempt which represents compromise; propeller would have dynamic properties between those of even-and odd-bladed propeller, i. e., moderate thrust and torque variations as well as moderate bending moment variations; design was made of 5-bladed " irregular" propeller with nonequal blades and blade spacings; comparisons with regular propellers, behind tanker model, indicate that merits of irregular propeller are open to doubt owing to majority of excited harmonic components.
Comparison between vibratory forces of regular and irregular propellers behind single screw ship
Int Shipbldg Progress
International Shipbuilding Progress ; 9 , n 96
1962
6 pages
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
Tests with 4-bladed propellers behind single-screw ship model
Engineering Index Backfile | 1941
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