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悬链线形超声变幅杆共振频率的瑞利修正

发表时间:2009-08-15  浏览量:1402  下载量:677
全部作者: 张鹏利,林书玉,付志强,董景团
作者单位: 陕西师范大学应用声学研究所;陕西省咸阳市武功县苏东中学
摘 要: 通过瑞利的近似理论假设,对大尺寸悬链线形变幅杆的纵向振动共振频率进行了修正,得到了修正频率表达式。利用有限元软件ANSYS对一组大尺寸悬链线形变幅杆进行模态分析。将修正结果与一维理论相比,发现修正后的值更接近于有限元模拟仿真值。修正后的值适用范围更大,频率更加精确。
关 键 词: 超声波;大尺寸悬链线形变幅杆;共振频率;频率修正;模态分析
Title: Rayleigh correction for resonance frequency of catenary
Author: ZHANG Pengli, LIN Shuyu, FU Zhiqiang, DONG Jingtuan
Organization: Institute of Applied Acoustics, Shaanxi Normal University;Sudong Middle School, Wugong County, Xianyang City
Abstract: Based on the assumption of Rayleigh�s approximate theory, the correction for the resonance frequency of vertical vibration of large dimension catenary transformer was carried out, and the expression of corrected frequency was given. The modal analysis for a group of large dimension catenary transformer was done by finite element software ANSYS. Compared with one�dimensional theory, the solutions after correction are closer to the solutions of finite element simulation. The corrected solutions have larger scope of application and the frequency is more precise.
Key words: ultrasonic; large dimension catenary transformer; resonance frequency; frequency modify; modal analysis
发表期数: 2009年8月第15期
引用格式: 张鹏利,林书玉,付志强,等. 悬链线形超声变幅杆共振频率的瑞利修正[J]. 中国科技论文在线精品论文,2009,2(15):1618-1622.
 
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