It indicates that this squeal is due to the lack of stiffness of the structure of the ship,leading to extensive sagging and shaft system decentration,making the forward seal and the propeller-shaft clamp ring collide,and then making squeal noise.
采用噪声和振动信号的频谱分析和相关分析 ,指出这种现象出现的原因在于船体刚度欠佳 ,致使中垂过大 ,轴系不对中 ,导致艉轴前密封盖艉轴卡环发生撞击式摩擦 ,最后用分子机械摩擦理论揭示了摩擦尖叫声产生的特点及其原
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