[1]李忠继 林红松 黄慧超.连续型浮置板轨道模态设计方法[J].高速铁路技术,2017,8(06):21-23，44.[doi:10.12098/j.issn.1674-8247.2017.01.005]
　LI Zhongji LIN Hongsong HUANG Huichao.Modal Design Method of Continuous Floating Slab Track[J].HIGH SPEED RAILWAY TECHNOLOGY,2017,8(06):21-23，44.[doi:10.12098/j.issn.1674-8247.2017.01.005]
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连续型浮置板轨道模态设计方法()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
8卷
期数:
2017年06期
页码:
21-23，44
栏目:
出版日期:
2017-11-15

文章信息/Info

Title:
Modal Design Method of Continuous Floating Slab Track
文章编号:
1674—8247(2017)06—0021—03
作者:
李忠继1 林红松1 黄慧超2
1.中铁二院工程集团有限责任公司, 成都 610031; 2.西南交通大学, 成都 610031
Author(s):
LI Zhongji1 LIN Hongsong1 HUANG Huichao2
1.China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031,China; 2.Southwest Jiaotong University, Chengdu 610031,China
关键词:
浮置板轨道;  模态分析;  固有频率
Keywords:
Key words:Floating slab track;  Modal analysis;  Natural frequency
分类号:
U213.2+1
DOI:
10.12098/j.issn.1674-8247.2017.01.005
文献标志码:
A
摘要:
:针对传统浮置板轨道固有频率计算方法在计算连续型浮置板轨道时的局限性,文章开展了连续型浮置板轨道模态设计的方法研究。利用线性振动理论推导了连续型浮置板轨道固有频率计算公式,并通过实际算例对比,阐释了本文提出的计算方法与传统方法的区别。最后利用有限元法,验证了该方法的准确性。结果显示:对于20 m长的浮置板轨道,本文提出的计算方法与有限元法的绝对误差仅为0.04 Hz,远小于传统方法与有限元法的误差(0.49 Hz),大幅提高了模态频率设计的精度。
Abstract:
Abstract:Aiming at the limitation of the calculation method of natural frequency of traditional floating slab track in calculating the continuous floating slab track, in this paper, a modal design method for continuous floating slab track is developed. The formula of the natural frequency of the continuous floating slab is deduced by the linear vibration theory. The difference between the proposed design method and the traditional method is explained by the practical calculation example. Finally, the finite element method is used to verify the accuracy of the method. The results show that the absolute error of proposed method is 0.04 Hz respect to the finite element method, the traditional method absolute error is 0.49 Hz.The proposed method greatly improves the accuracy of the modal frequency design.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介:李忠继(1983-),男,工程师。 基金项目:四川省科技计划项目(2016HH0041),中国中铁股份有限公司科技开发计划项目(2016-重点-37)
更新日期/Last Update: 2017-12-15