轴系偏斜因素对于横向振动特性的影响研究

摘要

Research the problem of propulsion shafting lareral vibration response problems caused by angle misalignment in uniform motion process. Considering as the basis of shaft angle misalignment and shaft eccentricity factors, establish the angle misalignment propulsion shafting lareral vibration dynamic model, use the numerical algorithm for solving the equation, and analysis the form of shafting vibration response and the effect of misalignment angle quantitymass ratio of active shaft and dimensionless shaft speed on the lareral vibration characteristics of the shafting with the angle misalignment in uniform process. The results indicate that shafting with angle misalignment can the dynamic behavior. The research work makes sense in providing a theoretical basis for warships to improve the acoustic performance from reducing shafting vibration.%研究由偏角不对中因素引起的舰船推进轴系匀速运动过程横向振动响应问题。考虑以轴系偏角不对中和转轴偏心因素为基础，建立偏角不对中推进轴系的横向振动动力学模型，并利用数值算法求解方程，分析轴系振动响应形式以及不对中偏角量、转轴质量比和主动轴无量纲转速对匀速运动过程偏角不对中轴系横向振动特性的影响。结果表明：偏角不对中的存在使轴系产生复杂的动力学行为。研究工作为从角度降低轴系振动角度改善舰船的声学品质提供理论依据。