摘要
以某船舶柴油机基座为研究对象,采用有限元仿真分析方法对阻尼基座进行优化设计,并开展减振效果检验方法研究。通过模型缩减搭建了符合实船弹性边界条件的等比试验台,分步在不同位置粘贴阻尼材料,进行阻尼前后对比试验。试验结果表明:减振效果达到5 d B以上。该研究结果可为船舶低噪声设计提供技术支撑。
The foundation of a certain type of diesel engine was studied. FEM analysis was employed in the optimal design of damping foundation, and the research on the test method of vibration reduction effect was carried out. By means of model reduction, an equal ratio test bed which can meet with the elastic boundary requirements of the real ship was set up, and the damping material was pasted at differ- ent positions step by step to contrast the damping effect before and after. The test results show that the vi- bration reduction has achieved more than 5 dB. The research result can offer technological support for the low-noise design of ships.
出处
《柴油机》
2017年第5期46-49,共4页
Diesel Engine
关键词
柴油机基座
阻尼
减振
试验
diesel engine foundation
damping
vibration reduction
test
