舰船科学技术
艦船科學技術
함선과학기술
SHIP SCIENCE AND TECHNOLOGY
2014年
10期
37-40
,共4页
有限元%回旋振动%陀螺力矩%共振转速
有限元%迴鏇振動%陀螺力矩%共振轉速
유한원%회선진동%타라력구%공진전속
finite element method%lateral vibration%gyroscopic effect%resonance speed
以气垫船垫升轴系为研究对象，建立计算模型，利用有限元计算软件分析陀螺效应对气垫船垫升轴系回旋振动的影响。采用计算多个轴承支撑刚度的方法，在不考虑船体刚度及考虑船体刚度2种情况下，计算垫升轴系的一次共振转速范围及叶片次共振转速范围，并对照工作转速，给出其回旋振动安全的结论。同时通过文献实验数据与数值计算的对比验证了计算模型的正确性，为气垫船垫升轴系的安全运行提供参考。
以氣墊船墊升軸繫為研究對象，建立計算模型，利用有限元計算軟件分析陀螺效應對氣墊船墊升軸繫迴鏇振動的影響。採用計算多箇軸承支撐剛度的方法，在不攷慮船體剛度及攷慮船體剛度2種情況下，計算墊升軸繫的一次共振轉速範圍及葉片次共振轉速範圍，併對照工作轉速，給齣其迴鏇振動安全的結論。同時通過文獻實驗數據與數值計算的對比驗證瞭計算模型的正確性，為氣墊船墊升軸繫的安全運行提供參攷。
이기점선점승축계위연구대상，건립계산모형，이용유한원계산연건분석타라효응대기점선점승축계회선진동적영향。채용계산다개축승지탱강도적방법，재불고필선체강도급고필선체강도2충정황하，계산점승축계적일차공진전속범위급협편차공진전속범위，병대조공작전속，급출기회선진동안전적결론。동시통과문헌실험수거여수치계산적대비험증료계산모형적정학성，위기점선점승축계적안전운행제공삼고。
Based on the shafting with lift fan on the hovercraft, establish a finite element model by using FEM software. The gyroscopic effect on the lateral vibration of the shafting with lift fan on the hovercraft is analyzed. On the base of considering the hull stiffness, the region of resonance speed and blade resonance speed of the shafting is calculated under different bearing stiffness and compared with taking no consideration of the hull stiffness. In accordance with working speed,the conclusion that the lateral vibration of the shafting is in safety is given. At the same time the correction of the model is achieved through comparing the experimental data with the simulation results in the reference. In a sense, it provides technical references for safe operation of the shafting with lift fan on the hovercraft.
