针对某综合科考船大型动力机组隔振系统隔振效果不理想的情况，首先对隔振效果的倍频程测试数据进行详细分析，并通过实船勘验和振动故障诊断，确定附属管系的振动是导致传递振动的关键因素。通过对振动源进行精确识别和振动传递路径的深入分析，揭示了船体基座振动与机组附属管系振动存在明显关联。因此将优化方向明确在管系优化处理，进而降低发电机组的振动传递到船体基座。试验结果表明，在管系采用综合优化措施后，大型动力系统的隔振效果由21.8 dB提升到32.6 dB，该研究为船用主动力设备隔振系统安装完成后的优化设计提供建议和参考。
In response to the unsatisfactory isolation effect of the isolation system of a large power unit on a comprehensive scientific research vessel, a detailed analysis of the octave band test data of the isolation effect was first conducted. Through actual ship inspection and vibration fault diagnosis, it was determined that the vibration of the auxiliary piping system was the key factor causing the transmission of vibration. Through precise identification of vibration sources and in-depth analysis of vibration transmission paths, it has been revealed that there is a clear correlation between the vibration of the ship's foundation and the vibration of the unit's ancillary piping system. Therefore, the optimization direction will be clearly focused on the damping treatment of the piping system, in order to reduce the transmission of vibration from the generator set to the hull foundation. The experimental results show that after adopting comprehensive vibration reduction measures in the piping system, the isolation effect of the large-scale power system has increased from 21.8 dB to 32.6 dB. This study provides suggestions and references for the optimization design of the isolation system of marine active power equipment after installation.
2025,47(10): 115-118 收稿日期：2014-8-12
DOI：10.3404/j.issn.1672-7649.2025.10.019
分类号：U664.4
基金项目：中华人民共和国交通运输部（交规划函[2019]618号）
作者简介：蔡晓涛（1993-），男，硕士，工程师，研究方向为船舶振动控制
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