船舶推进轴系动力学缩比模型设计

Design of a dynamic scaled model for marine propulsion shafting

本文以某型水面双体船及其推进轴系为原型,计入船体结构的支撑动力学影响,依据动力学参数的缩比换算关系,设计了一种验证轴系回旋振动控制技术的陆上缩比轴系试验模型,并通过对实船推进轴系和缩比轴系模型的动力学仿真分析和对比,验证了所设计缩比轴系的动力学适用性,为轴系回旋振动控制方法的验证提供了有效试验对象。

Based on a surface catamaran and its propulsion shafting,and with the dynamic effects of the supporting hull structure taken into account,a scaled shafting test model was designed according to the scaling relationship of the dynamic parameters to verify shafting whirling vibration control technology.Through the dynamic simulation analysis and comparison of dynamics between the real propulsion shafting with the scaled model,the dynamic applicability of the designed scaled shafting was verified.The study provides an effective test object for the verification of the control method of the shafting whirling vibration.