Taking a certain roll on/roll off ship dual-fuel engine and power system as an example,the difference in torsional vibration excitation torque between fuel and dual-fuel modes and its impact on engine torsional vibration response were studied. The torsional vibration characteristics of the propulsion shaft system were analyzed,and the torsional vibration test results were studied. The research results indicate that:In the fuel and natural gas dual-fuel mode,the torsional excitation torque of the latter is relatively large; In the fuel and natural gas dual-fuel mode, although the torsional stress of the crankshaft does not change significantly,the torsional response of the engine,propulsion shaft section, and generator rotor all undergo significant changes.
关键词
低速机/双燃料/扭转振动/激励力矩/推进轴系
Key words
low-speed engine/dual-fuel/torsional vibration/excitation torque/propulsion shaft system
维普
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