中国舰船研究2016，Vol.11Issue(2)：98-105,8.DOI:10.3969/j.issn.1673-3185.2016.02.013
复合材料螺旋桨模型的应变模态与振动特性
Composite propeller's strain modal and structural vibration performance
摘要
Abstract
The natural frequency and displacement strain modal's vibration mode is comparative studied using validated finite modal algorithm and strain modal experiment,the result showed that the deviation of tested and calculated first three natural frequency of copper and carbon fiber propeller is within 3% and 12%. The carbon fiber propeller has smaller natural frequency,similar strain modal and four times struc⁃ture damping compared with copper propeller. Further calculation of the wet modal of two propellers,the first four wet modal natural frequency of copper propeller reduced 18%~33% compared with the corre⁃sponding dry modal,while the carbon fiber propeller's reduction is 54%~64%. More research on vibration performance of propeller is carried out,the fiber orientation beneficial for vibration attenuation is ob⁃tained,the total acceleration level of optimized carbon fiber propeller is 2 dB less than the tested carbon fi⁃ber propeller.关键词
复合材料螺旋桨/应变模态/固有频率/振动响应/振动加速度级Key words
composite propeller/strain modal/natural frequency/vibration response/acceleration level分类
交通工程引用本文复制引用
黄政,熊鹰,杨光..复合材料螺旋桨模型的应变模态与振动特性[J].中国舰船研究,2016,11(2):98-105,8.基金项目
国家自然科学基金资助项目 （）
