| 余弦形变幅杆的理论研究及模态分析 |
| |
| 引用本文： | 张小丽,林书玉.余弦形变幅杆的理论研究及模态分析[J].陕西师范大学学报,2006,34(3):48-51. |
| |
| 作者姓名： | 张小丽 林书玉 |
| |
| 作者单位： | 陕西师范大学应用声学研究所 陕西西安710062 |
| |
| 摘 要： | 根据变截面杆纵向振动的波动方程,推导了余弦形变幅杆的频率方程和重要参数的计算公式.用数学软件Matlab设计了同工作频率、不同面积比的余弦形变幅杆;再用有限元软件ANSYS进行模态分析,确定了共振频率.结果表明,余弦形变幅杆共振频率的模态分析值与理论值比较吻合,平均相对误差为1.86%.
|
| 关 键 词： | 余弦形变幅杆 共振频率 谐振长度 模态分析 |
| 文章编号： | 1672-4291（2006）03-0048-04 |
| 收稿时间： | 2005-10-12 |
| 修稿时间： | 2005年10月12 |
Theoretical deduction and modal analysis of cosine horn |
| |
| ZHANG Xiao-li,LIN Shu-yu.Theoretical deduction and modal analysis of cosine horn[J].Journal of Shaanxi Normal University: Nat Sci Ed,2006,34(3):48-51. |
| |
| Authors: | ZHANG Xiao-li LIN Shu-yu |
| |
| Abstract: | Based on the wave equation of longitudinal vibration of variable cross-session rod,the frequency equation and parameter formula of cosine horn are educed,the cosine horn with same frequency and different area ratio is designed by using Matlab language.Finally,the modal analysis is obtained and the resonance frequency is determined by using finite element software ANSYS.It is shown that the simulation result is consistent with that of the theory and the average relative error is 1.86%. |
| |
| Keywords: | cosine horn resonance frequency resonance length modal analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
