CAJ | 학술논문

基于多体动力学耦合理论结合有限元理论，以1艘大型船舶为研究对象，建立其推进轴系的刚柔耦合多体动力学仿真模型，对大型低转速推进轴系在工作中的扭振特性进行研究。在仿真计算的基础上，利用扭振测试系统对实船的扭振进行测量，并从多个谐次将轴系扭振的仿真计算值与试验测量值进行对比和分析。分析结果表明，通过仿真计算得到的轴系扭转振动变化趋势与实际测量值基本相符，验证了仿真模型的正确性和可行性。同时，通过Adams/Virbration模块分析了船体变形对轴系扭振的影响，证明了船体变形会导致轴系扭转振动增大。
기우다체동역학우합이론결합유한원이론，이1소대형선박위연구대상，건립기추진축계적강유우합다체동역학방진모형，대대형저전속추진축계재공작중적뉴진특성진행연구。재방진계산적기출상，이용뉴진측시계통대실선적뉴진진행측량，병종다개해차장축계뉴진적방진계산치여시험측량치진행대비화분석。분석결과표명，통과방진계산득도적축계뉴전진동변화추세여실제측량치기본상부，험증료방진모형적정학성화가행성。동시，통과Adams/Virbration모괴분석료선체변형대축계뉴진적영향，증명료선체변형회도치축계뉴전진동증대。
This paper is based on the multi-body dynamic coupling theory and finite element theory. It builds a multi-body dynamic coupling model of the large-scale vessel and analyses the torsion vibration characteristics of slow-speed ship propulsion shafting. The torsion vibration of shafting measured under its working condition is compared with the results from the simulation model. Then, the differences between the experimental results and the simulation results are analyzed in multi-orders. The analysis result indicates that the simulation results are almost the same with the experimental results which verify the correctness and feasibility of the model. At the same time, the influence of ship hull deformation on the torsion vibration of ship propulsion shafting is discussed by Adams/Vibration. The analysis shows that the ship hull deformation could cause the increase of torsional vibration of ship propulsion shafting.