一系悬挂建模方式对转向架高频振动特性的影响
张士臣1，赵新利1，刘浩楠2，徐涆文*,2，肖新标2
（1.中车唐山机车车辆有限公司，河北 唐山 064000；2.西南交通大学 牵引动力国家重点实验室，四川 成都 610031）
摘要：为研究转向架一系悬挂建模方式对转向架高频振动特性的影响，选取我国某型动车组转向架为研究对象，基于悬挂件及转向架试验测试结果，采用有限元方法，建立一系悬挂件的有限元模型及转向架的“全有限元模型”和“一系简化模型”，并进行振动特性计算，结果表明，两种转向架模型计算的轴箱振动加速度曲线在主要峰值和变化趋势差异较小，几乎在全频段内一系简化模型计算的构架各位置振动加速度均大于全有限元模型、且峰值差异也较明显。对于计算转向架振动特性而言，不宜将悬挂件简化成线性弹簧－阻尼单元。
关键词：一系悬挂；高频振动特性；有限元；转向架
中图分类号：U270. 1 文献标志码：A doi：10.3969/j. issn.1006-0316.2022.03.006
文章编号：1006-0316 (2022) 03-0032-08
Influence of Modeling Method of Primary Suspension on High Frequency Vibration Characteristics of Bogie
ZHANG Shichen1，ZHAO Xinli1，LIU Haonan2，XU Hanwen2，XIAO Xinbiao2
( 1.CRRC TANGSHAN Co., Ltd., Tangshan 064000, China;2.State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China )
Abstract：In order to study the influence of the bogie primary suspension modeling method on the high-frequency vibration characteristics of the bogie, a certain type of high-speed train bogie in my country is selected as the research object. Based on the test results of the suspension and the bogie, the finite element method is used to establish the finite element model of the primary suspension, the "full finite element model" and the "simplified model of the primary system" of the bogie have been verified. Furthermore, the vibration characteristics of the bogie models with two different primary suspension modeling methods are calculated. The results show that the main peak value and variation trend of axle box vibration acceleration curve calculated by the two bogie models are little different. Almost in the full frequency range inside, the vibration acceleration at each position of the frame calculated by a series of simplified models is greater than that of the full finite element model, and the peak difference is also more obvious. For the calculation of bogie vibration characteristics, it is not suitable to simplify the suspension as a linear spring-damping element.
Key words：primary suspension；high-frequency vibration characteristic；finite element；bogie
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收稿日期：2021-08-03
基金项目：国家自然科学基金（U1934203）；四川省科技计划项目（2020YJ0254）；牵引动力国家重点实验室自主研究课题（2017TPL_T01）；河北省省级科技计划（19212203D）
作者简介：张士臣（1978－），男，辽宁锦州人，学士，教授级高级工程师，主要研究方向为城市及市域轨道车辆总体设计。*通讯作者：徐涆文（1993－），男，四川成都人，博士研究生，主要研究方向为高速列车减振降噪、舒适性研究，E-mail：xheaven9@163.com。
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