CAJ | 학술논문

根据模态分析理论和功率流理论,分别从振动模态和能量的角度,对艉部系统的传递路径进行理论推导和数值分析.研究发现,螺旋桨处横向激励时船艉的三处传递路径中,在低频段,尾端支撑为主要的传递路径;在中频段,推力轴承基座处为主要的传递路径.
근거모태분석이론화공솔류이론,분별종진동모태화능량적각도,대미부계통적전체로경진행이론추도화수치분석.연구발현,라선장처횡향격려시선미적삼처전체로경중,재저빈단,미단지탱위주요적전체로경;재중빈단,추력축승기좌처위주요적전체로경.
Vibration of ship sterns is a key point in ship vibration control.Study of the characteristic of vibration transmission paths of ship stern will be helpful for vibration reduction of the ship stern.Based on the modal shape analysis methods and power flow theory, the transmission path of the stern system vibration is deducted and analyzed numerically.The results show that the stern bearing is the main path for lower frequency vibration, while the thrust bearing base is the main path for medium frequency vibration.