通过对无人船发动机前端附件驱动系统横向振动特性分析，提高发动机输出稳定性和状态监测能力，提出基于动力学和结构可靠性分析的驱动系统横向振动分析模型，采用载荷引起的应变信号特征分析方法，提取前端附件驱动系统横向振动信号模型，对振动信号进行不同速度等级下载荷分析和动态响应特征提取，结合对部件的动力学和结构可靠性特征分析，根据信号幅频特征提取结果以及振动惯性参数检测结果实现对驱动系统横向振动性能动态分析。测试表明，该方法对驱动系统横向振动的动态监测能力好，实验结果验证了该方法对振动特性数值建模方法的可靠性与精度。
By analyzing the lateral vibration characteristics of the front end accessory drive system of an unmanned ship engine, the engine output stability and state monitoring ability are improved. A lateral vibration analysis model of the drive system is proposed based on dynamic and structural reliability analysis. The strain signal feature analysis method caused by load is used to extract the lateral vibration signal model of the front end accessory drive system, Perform load analysis and dynamic response feature extraction on vibration signals at different speed levels, and dynamically analyze the lateral vibration performance of the driving system based on the signal amplitude frequency feature extraction results and vibration inertia parameter detection results. The test shows that the method has good dynamic monitoring ability for the lateral vibration of the drive system, and the experimental results verify the reliability and accuracy of the method for numerical modeling of vibration characteristics.
2023,45(9): 112-115 收稿日期：2022-12-10
DOI：10.3404/j.issn.1672-7649.2023.09.024
分类号：TH114
基金项目：广东省轮机工程技术高水平专业群船舶自动化系统集成技术研究中心资助项目(GCZX-B1304)
作者简介：何放平(1973-),男,实验师,研究方向为轮机工程技术及船舶节能减排
