自然科学版
陕西师范大学学报(自然科学版)
物理学
边界固定的圆盘在液体中的振动
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贺洋洋,林书玉*,李力怡,赵学慧,付志强
(陕西师范大学 应用声学研究所, 陕西 西安 710062)
贺洋洋,女,硕士研究生,研究方向为功率声.Email:hy87826@163.com.
摘要:
应用瑞利里兹理论,对圆板振动进行理论分析,研究了边界固定的圆盘在自由液体中的振动情况,给出了浸没在水中的圆板振动频率的计算公式.运用Ansys软件的有限元模型模拟了浸没在水中的圆板振动,求出了振动频率.运用Matlab软件给出了振动模态和振动频率的关系曲线图.结果表明:水中圆板的频率低于空气中圆板振动频率,水的深度越深,板的振动频率越低.
关键词:
圆板振动; 液体; 频率
收稿日期:
2011-03-30
中图分类号:
O4261
文献标识码:
A
文章编号:
16724291(2011)05003504
基金项目:
国家自然科学基金资助项目(10974217)
Doi:
The vibration of circle plate with Boundary fixed in liquid
HE Yangyang, LIN Shuyu*, LI Liyi, ZHAO Xuehui, FU Zhiqiang
(Applied Acoustics Institute, Shaanxi Normal University, Xi′an 710062, Shaanxi, China)
Abstract:
Based on the RayleighRitz method, the vibration of circle plate with a boundary fixed in liquid is studied and the vibration frequency of circle plate is given. The vibration of circle plate submerged in water is simulated by the finite element model of ANSYS. At last, the diagram between the normal modes and the vibration of frequency are drawn by using MATLAB. The result shows that the frequency of circle plate in the water is less than that of the air, and the deeper of the water, the lower of the frequency.
KeyWords:
vibration of circle plate ; liquid; frequency