列车车体结构一阶垂向振动参数研究

王长科; 阳光武; 朱涛; 于金朋

doi:10.13433/j.cnki.1003-8728.2016.0818

列车车体结构一阶垂向振动参数研究

doi: 10.13433/j.cnki.1003-8728.2016.0818

1.
西南交通大学牵引动力国家重点实验室, 成都 610031;
2.
唐山轨道客车有限责任公司, 河北唐山 064000

基金项目:

国家科技支撑计划项目（2015BAG12B01-15）、四川省科技厅应用基础研究项目（2014JY0242）及中央高校基本科研业务费专项资金项目（2682015CX046）资助

详细信息

作者简介:
王长科(1989-),硕士研究生,研究方向为机车车辆动力学及强度,1450972997@qq.com

通讯作者:
阳光武(联系人),研究员,博士,gwyang@swjtu.edu.cn

计量
- 文章访问数: 137
- HTML全文浏览量: 24
- PDF下载量: 6
- 被引次数: 0
出版历程
- 收稿日期: 2015-01-11
- 刊出日期: 2016-08-05

Research of First Order Vertical Parameter for Car-body Structure

1.
The State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China;
2.
TangShan Railway Vehicle Co., Ltd., Hebei Tangshan 064000, China

摘要

摘要: 基于欧拉-伯努利梁理论，建立了等效车体结构垂向参数的计算参数化模型。为了更精确地计算出车体结构的一阶垂向振动弯曲频率，根据车体截面的不同，将其分成若干段，获取分段的截面信息；基于分段的不平均程度推导出了具有收敛系数的车体一阶垂向弯曲频率修正公式，大大提高了车体的一阶垂向振动弯曲频率解析计算精度。分别以某型地铁车和高速列车车体结构的一阶垂向振动弯曲频率计算为例，对公式的关键参数进行了分析与应用，计算结果表明：公式解析解与有限元解之间的误差分布为2.05%和4.59%，且高速车与其模态实验结果相差1.18 Hz，证明了车体一阶垂向振动弯曲频率修正公式的有效性。
- 欧拉-伯努利梁 /
- 列车车体 /
- 垂向弯曲频率 /
- 解析算法
Abstract: Interms of the Euler-Bernoulli beam theory, the parametric model for vertical vibration of equivalent car-body structure is built. For more accurate calculation results, the car-body is divided into some parts for getting the section information and obtaining a convergence coefficient to get the corrected formula by the degree of inequality about the car-body parts. All of these measures give an exact first order vertical bending frequency of the simple car-bodies. By applying the key parameters to calculate the first order vertical bending frequency of a subway car-body and a high-speed train car-body, the results show that the error between the analyzed value and the finite element result is 2.05% and 4.59%, and the error about the modal experiment of the high-speed train is 1.18 Hz. All the errors between the analyzed value and the finite element result are all in the range of 5%, which show that the analyzed method is effective.
- Euler-Bernoulli Beam /
- design /
- vibration analysis /
- calculation

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参考文献(15)

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