摘要
研究了带有翻边长圆开孔矩形板的振动特性。利用ANSYS软件建立翻边开孔矩形板的参数化有限元模型,获得不同开孔参数(开孔率、翻边高度、开孔位置及转动)情况下结构的前两阶固有频率。在此基础上数值分析翻边开孔参数对矩形板前两阶固有频率的影响,发现翻边开孔能显著改变矩形板的固有频率,且与板的边界约束条件有很大关系。研究结果为实际结构的翻边开孔设计提供了参考。
The influence of flanged-cutout on the natural frequencies of a rectangular plate is investigated.A general rectangular plate with circle-rectangular cutout is employed and the ANSYS software is used to evaluate the natural frequencies of the structure. Numerical results show that the frequencies are highly dependent upon the size, flanging height, position and orientation of the cutout, and the effect is also related to the different boundary conditions of the plate. The results can provide references for the design of flangedcutouts in engineering.
出处
《船舶力学》
EI
CSCD
北大核心
2017年第11期1404-1413,共10页
Journal of Ship Mechanics
基金
国家自然科学基金资助项目(11402077)
河南科技大学科学研究基金资助项目(13350046)
关键词
翻边
长圆孔
矩形板
固有频率
flangedge
circle-rectangular cutout
rectangular plate
natural frequencies
