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| Study on the Dynamic Load of Rope and Its Effect on Floating and Stability of Revolving Crane Vessel |
| CHEN Xinquan,HE Yanping,LI Hongliang,TAN Jiahua |
| (School of Naval Architecture, Ocean and Civil Engineering； State Key Laboratory of Ocean Engineering, Shanghai Jiaotong University, Shanghai 200240, China) |
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Abstract Additional dynamic loading generated by wire rope swinging due to waveinduced motion of the crane vessel adversely affects its buoyancy and stability. A hydrodynamic model of revolving crane vessel “LANJING” was built to calculate the motion response in irregular waves. Spectral analysis was employed to calculate the motion transfer functions from fulcrum of suspension to lifted object and the statistic characteristic value for lifted object motion. Characteristic value for additional dynamic loading, whose influence on buoyancy and stability of the crane vessel was also analyzed in this study, was obtained according to different waves, rotation angle and rope length.
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Received: 08 June 2009
Published: 30 June 2010
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