噪声与振动控制Issue(1)：57-60,4.DOI:10.3969/j.issn.1006-1335.2016.01.012
轴承刚度对船舶推进轴系振动传递路径影响分析
Analysis of the Effects of Bearing Stiffness on Vibration Transmission Paths in Ship Propulsion Shafting
摘要
Abstract
The matrix transfer method was used to analyze the vibration transmission paths in the ship propulsion shafting. First of all, the ship propulsion shafting was simplified to concentrated mass elements, elastic supporting elements and the beam elements with the distributed parameters. And the expression of the field transfer matrix of the ship propulsion shafting was deduced based on the modified Timoshenko beam theory. Then, the corresponding boundary conditions were introduced, and the solution of the bearing force and the displacement response of the propulsion shafting were obtained. Finally, the power flow of each bearing of the propulsion shafting was analyzed numerically from the perspective of energy and compared with the result of FEA approach. The results show that the matrix transfer method based on the modified Timoshenko beam theory is feasible and effective to calculate the propulsion shafting bending vibration. And the aft stern bearing stiffness has the largest influence on the transmission path, followed by the front stern bearing and the thrust bearing.关键词
振动与波/轴承刚度/传递路径/传递矩阵法/功率流Key words
vibration and wave/bearing stiffness/transmission path/transfer matrix method/power flow分类
通用工业技术引用本文复制引用
李海峰,朱石坚,刘学伟..轴承刚度对船舶推进轴系振动传递路径影响分析[J].噪声与振动控制,2016,(1):57-60,4.基金项目
国家自然科学基金资助项目 （）
