推进轴系曲线校中工艺对轴系振动的影响

摘要

Bearing eccentric wear and mechanical vibration of marine propulsion shafting caused by its unreasonable alignment would significantly affect its stability and service life. This paper presents the curve alignment technology and its influence on the vibration frequency and operating performance of the shaft. A finite element model of the ship shafting is built and the computation is compared with the experiment on a test rig. It is shown that curve alignment technology could make uniform bearing load, reduce eccentric wear, ensure the effective contact length of the bearing and reduce friction noise.%船舶推进轴系校中不良会引起轴承的偏磨及轴系振动，严重影响船舶运行稳定性和使用寿命。论文提出了船舶推进轴系的曲线校中工艺，在一艘船舶轴系试验台上进行了试验和有限元计算。研究结果表明，曲线校中工艺可以使轴承承载均匀，偏磨和磨损减小，避免因校中不良而造成的轴系固有频率的下降，使得轴系运转顺畅和稳定。