摘要
为保证冰区低速二冲程主机船舶轴系的运行安全,扭振计算时须要考虑冰载荷的影响。船规中对冰载荷的大小和发生次数做出了明确的规定,但具体应采用时域计算还是频域计算,业界没有统一意见。针对该问题,结合具体算例对两种方法进行介绍和分析;并对两种计算方法的应用前景做了分析。
To ensure the safe operation of the shafting of vessels navigating in ice area, the ice impact should be considered in the torsional vibration calculation. The degree and happened times of ice impact are clearly defined in the rules of classification societies, but the industry hasn＇t reached an agreement if the calculation should be in time-domain duced and analyzed based on actural or frequency-domain. Aimed at this issue, the two methods are intro- examples, and their application forecast is studied respectively.
出处
《柴油机》
2015年第6期36-39,52,共5页
Diesel Engine
关键词
船舶轴系
扭振
冰级
时域计算
频域计算
shafting of vessel
torsional vibration
ice class
time-domain calculation
frequency-domain calculalion
