轨道交通列车蓄电池振动试验夹具验证
马玄1马玉强2花明磊3耿圣恩2杨姝1
Verification of Vibration Test Fixture for Rail Transit Train Battery
MA XuanMA YuqiangHUA MingleiGENG Sheng’enYANG Shu
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作者信息:1.1.中车长春轨道客车股份有限公司科技管理部, 130062, 长春；
2.2.中车戚墅堰机车车辆工艺研究所有限公司,
3.213011, 常州；
4.3.中车长春轨道客车股份有限公司国家轨道客车工程研究中心, 130062,
5.长春
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Affiliation:Science and Technology Management Department, CRRC Changchun Railway Vehicles Co., Ltd., 130062, Changchun, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2023.04.011
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中图分类号/CLCN:U270.7
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栏目/Col:研究报告
摘要:
蓄电池所用夹具的性能良好可避免蓄电池振动试验出现过试验或欠试验现象，从而保证蓄电池振动试验质量。基于振动试验夹具的功能与类型分析了夹具的技术特点及要求，从固有频率与共振频率、衰减系数与相对阻尼系数、模态试验分析、振动台实测等4个方面，探讨分析了夹具测试验证方法。通过有限元仿真计算与振动台试验实测，对轨道交通列车蓄电池振动试验用夹具进行测试，验证了夹具的功能特性。仿真分析和试验实测得到的模态频率相接近，验证了有限元分析的正确性。
Abstracts:
Good performance of fixture used for battery can avoid the phenomenon of over-test or under-test in battery vibration test, so that the quality of the test is ensured. Based on the functions and types of vibration test fixture, the technical characteristics and requirements of the fixture are analyzed. From 4 aspects of natural frequency and resonance frequency, attenuation coefficient and relative damping coefficient, modal test analysis and vibration bench measurement, test and verification methods for the fixture are discussed and analyzed. Through finite element simulation calculation and vibration bench test, the fixture used for rail transit train battery vibration test is tested, and the function characteristics of the fixture are verified. The modal frequency obtained by simulation analysis is close to that obtained by experiment, which verifies the correctness of finite element analysis.
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