Tests for correlation between ship vibration isolator installation parameters and vibration isolation effect
JI Fang1, ZHANG Huadong1,2,LI Guonan1,3,WU Ming1
1.China Ship Research and Development Academy, Beijing 100192, China;
2.School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China；
3.College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China
Abstract：Tests for the correlation between ship vibration isolator installation parameters and vibration isolation effect are a key to support vibration isolator acoustic quality measuring.Here, typical ship vibration isolators were taken as a study object, their installation parameters being sensitive to vibration isolation effect in ship building process were found.Furthermore, the influence laws of vibration isolator’s mounting surface clearance and pre-tightening moment on vibration isolation effect were analyzed through series of process tests.Based on a great amount of actual ships test data, each installation parameter’s contribution to vibration isolation effect was obtained based on the multi-variate statistical analysis.The results showed that the BE300 vibration isolator’s vibration isolation effect is complexly related to its pre-tightening moment and bottom bonding clearance; its installation after removing bottom rubber and choosing proper pre-tightening moment is suggested; its vibration isolation effect is strongly correlated to its underwater deformation, its deformation after connecting pipes and gasket thickness at central frequencies of several 1/3 octave paths.
收稿日期: 2017-02-25
出版日期: 2018-09-28
引用本文:
计方1, 张华栋1.2，吴铭1，李国楠1.3. 舰船隔振器安装参数与隔振效果相关性试验研究[J]. 振动与冲击, 2018, 37(19): 118-123.
JI Fang1, ZHANG Huadong1,2,LI Guonan1,3,WU Ming1. Tests for correlation between ship vibration isolator installation parameters and vibration isolation effect. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(19): 118-123.
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