40000 DWT散货船冰区推进轴系设计  

Propulsion Shafting Design of 40000 DWT Bulk Carrier with Ice Class

作　　者：许浩 XU Hao(Shanghai Merchant Ship Design and Research Institute,Shanghai 201203,China)

机构地区：[1]上海船舶研究设计院,上海201203

出　　处：《船舶设计通讯》2021年第2期63-71,共9页Journal of Ship Design

摘　　要：40 000 DWT散货船在推进轴系设计过程中,遇到主机转速禁区不合理、功率储备不足、轴系扭振应力过高无适配的扭振减振器等诸多问题,采用常规的调整方法没有明显效果。为了保证推进轴系设计的合理性,采用新的轴径计算方法,在满足强度要求的前提下中间轴轴径大幅减小,解决转速禁区不合理、扭振应力过高等问题,获得船级社认可。相较于常规采用的极地冰区轴径计算公式,新的计算方法可选取的轴径范围更宽,对于非极地冰区船舶轴系设计具有一定的应用价值。During the propulsion shafting design of the 40 000 DWT bulk carrier,several problems occurred such as the unreasonable barred speed range,unsufficient main engine’s power margin and too high torsional stress of shafting. Regular adjusting methods could not solve all these problems. To ensure the rationality of shafting design,a new shafting diameter formula was adopted,with which the diameter of intermediate shaft could be reduced greatly while the strength requirement could still be fulfilled. By this method,the problems referred before could all be solved and the new formula has already been approved by the classification society. The calculating formula for the shafting diameter of vessels with polar ice class was regularly chosen for this kind of cases. In comparison with that,the new formula adopted for this vessel could allow larger scope of shafting diameter. This new formula was applicable for the propulsion shafting design of vessels with ice class except for polar cases.

关 键 词：冰区等级 轴系设计 轴径计算 扭振计算 

分 类 号：U674.134[交通运输工程—船舶及航道工程]