纺织高校基础科学学报2017，Vol.30Issue(3)：390-395,6.DOI:10.13338/j.issn.1006-8341.2017.03.016
大尺寸复合变幅杆的设计及振动特性
Design of large size compound horn and its vibration characteristics
摘要
Abstract
The longitudinal vibration frequency of large size tapered composite horn is modified by Rayleigh approximation theory,and the corrected frequency expression is calculated.Calculating the corrected frequency by using computer programming,the calculation results are compared with the finite element simulation results and experimental test results.It is showed that the correction results have a wider range than the one-dimensional theoretical value,and it is consistent with the experimental values and the finite element simulation value.The vibration characteristics of large size cone type composite horn are studied by using finite element method.The results show that the resonant frequency decreases with the increase of the length of each segment,but the influence of the length of large section is the biggest,the influence of the length of the small section is the minimum.关键词
大尺寸复合变幅杆/谐振频率/放大系数/频率修正/振动特性Key words
large size compound horn/resonance frequency/amplification factor/frequency correction/vibration characteristics分类
通用工业技术引用本文复制引用
张宁宁..大尺寸复合变幅杆的设计及振动特性[J].纺织高校基础科学学报,2017,30(3):390-395,6.基金项目
陕西省教育厅自然科学专项基金资助项目(15JK1250) （15JK1250）
陕西省军民融合研究基金资助项目(17JMR35) （17JMR35）
渭南师范学院校级教改项目(JG201648) （JG201648）
