舰船复合材料轴系横向振动特性快速预报及其影响因素研究

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振动与冲击 ›› 2025, Vol. 44 ›› Issue (15) : 60-66.

振动理论与交叉研究

舰船复合材料轴系横向振动特性快速预报及其影响因素研究

朱军超*1,2,刘乾1,董冠华3,陈武超2,4,华宏星2

作者信息 +

Rapid prediction and influencing factors of lateral vibration characteristics of ship composite shafting

ZHU Junchao*1,2, LIU Qian1, DONG Guanhua3, CHEN Wuchao2,4, HUA Hongxing2

Author information +

文章历史 +

摘要

碳纤维复合材料传动轴具有重量轻、比刚度大及减振性能强等优势，是舰船传动轴系未来的发展方向，目前其振动计算多基于有限元仿真。文中以某船舶复合材料推进轴系为研究对象，首先基于三维解析模型将复合材料轴均质化，确定其等效弯曲刚度。然后利用传递矩阵法构建了复合材料轴系横向振动模型，并通过有限元法验证了模型的准确性，最后分析了铺层角度、铺层厚度及铺层方式对轴系横向振动的影响。结果表明：复合材料横向振动快速预报模型具有较高精度，并且可以显著缩短计算时长。钢轴-碳纤维轴组合轴系，调整复合材料轴段铺层角度可有效改变碳纤维轴段弯曲刚度，进而调控轴系各阶固有频率及其对应振幅，并且阶次越高，调控效果越明显。但是铺层厚度和铺层方式的影响较为微弱。所得结果对于复合材料轴系横向振动预报快速建模及铺层设计具有一定的指导意义。

Abstract

Carbon fiber reinforced polymer shaft is the future development direction of ship transmission system, which has an advantage of light weight, high specific stiffness and strong vibration reduction performance. Its vibration characteristics are always calculated by commercial finite element software. The study takes a ship composite shaft as research object and obtain its equivalent bending stiffness by three-dimensional analytical model firstly. Then, constructing the composite shaft lateral vibration model by transfer matrix method. The accuracy of the model was verified by finite element method. Finally, this paper analyze the influence of composite layer angle, layer thickness and layer angle order on shaft lateral vibration performance. The result shows that: adjusting the composite shaft layup angle can regulating its natural frequencies and vibration shape effectively due to the change of composite shaft bending stiffness. And the higher vibration order, the more obvious the regulation effect. However, the effect of layer thickness and layer angle order is relatively weak. The obtained results have certain significance for composite shaft lateral vibration performance rapid prediction and composite layer design.

导出引用

朱军超1, 2, 刘乾1, 董冠华3, 陈武超2, 4, 华宏星2. 舰船复合材料轴系横向振动特性快速预报及其影响因素研究[J]. 振动与冲击, 2025, 44(15): 60-66

ZHU Junchao1, 2, LIU Qian1, DONG Guanhua3, CHEN Wuchao2, 4, HUA Hongxing2. Rapid prediction and influencing factors of lateral vibration characteristics of ship composite shafting[J]. Journal of Vibration and Shock, 2025, 44(15): 60-66

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