中国舰船研究2024，Vol.19Issue(z1)：93-100,8.DOI:10.19693/j.issn.1673-3185.03409
短路冲击下的船用柴油机瞬态扭振特性分析
Transient torsional vibration analysis of marine diesel engine under short-circuit impact
徐聪聪 1梁刚 1陶杰 2焦亚飞 1陈晋元 2王鹏程 2邓梦灿2
作者信息
- 1. 上海船用柴油机研究所,上海 201108
- 2. 哈尔滨工程大学 动力与能源工程学院,黑龙江 哈尔滨 150001
- 折叠
摘要
Abstract
[Objectives]In order to formulate an optimization scheme for the torsional vibration parameters of a marine diesel generator shaft system,it is necessary to analyze the transient torsional vibration character-istics of the diesel generator under short-circuit impact.[Methods]The shafting transient torsional vibration characteristics of a 20-cylinder V-type diesel generator set under short-circuit impact are analyzed by the New-mark method,and the effects of different shafting parameters on its shafting transient torsional vibration char-acteristics under short-circuit conditions are discussed.A new selection scheme of shock absorber stiffness and coupling stiffness is then determined.[Results]The calculation results show that the shafting torsional vibra-tion characteristics deteriorate significantly when short-circuit impact occurs.After optimization(the stiffness of the torsional shock absorber and coupling are optimized to 90%and 70%of the original value respectively),the maximum transient torque of the motor shaft,maximum transient torque of the coupling and maximum transient stress of each segement of the crankshaft under short-circuit impact conditions are reduced by 13.43%,10.51%and 5.29%respectively.[Conclusions]The proposed optimized design scheme can effect-ively reduce the transient torsional vibration level of shaft systems.The results of this study can provide use-ful references for the vibration and noise reduction design of diesel generator sets.关键词
船用柴油机/轴系扭振/短路冲击/参数优化Key words
marine diesel/shafting torsional vibration/short-circuit impact/parameter optimization分类
交通工程引用本文复制引用
徐聪聪,梁刚,陶杰,焦亚飞,陈晋元,王鹏程,邓梦灿..短路冲击下的船用柴油机瞬态扭振特性分析[J].中国舰船研究,2024,19(z1):93-100,8.
