地铁车辆空气压缩机吊挂方式对模态参数的影响及减振形式优化
陈磊1刘中华2刘政2
Influence of Metro Vehicle Air Compressor Suspension Methods on Modal Parameters and Optimization of Vibration Reduction Forms
CHEN Lei1LIU Zhonghua2LIU Zheng2
-
作者信息:1.南京铁道职业技术学院机车车辆学院，210031，南京
2.中车唐山机车车辆有限公司，063011，唐山
-
Affiliation:1.College of Railway Locomotive Vehicle, Nanjing Vocational Institute of Railway Technology, 210031, Nanjing, China
2.CRRC Tangshan Co., Ltd., 063011，Tangshan, China
-
关键词:
-
Key words:
-
DOI:10.16037/j.1007-869x.2025.01.023
-
中图分类号/CLCN:U442.55
-
栏目/Col:研究报告
摘要:
［目的］空气压缩机（以下简称“空压机”）是地铁车辆主要的振动激励源之一，对空压机进行合理的模态匹配设计，有利于降低车辆车体振动与噪声，改善车辆乘坐舒适性。［方法］采用ANSYS有限元软件建立空压机及其框架有限元模型，计算分析了地铁车辆空压机二级减振吊挂方式对其模态参数的影响，并优化设计了空压机及其框架间的二级减振吊挂方式。［结果及结论］采用二级减振的空压机，若其吊挂方式不合理，易导致空压机及其框架模态频率与空压机激励频率相近而造成空压机共振。当电机端、压缩机端与框架间的一级减振采用橡胶减振，空压机框架与车体安装座间的二级减振采用刚性连接时，空压机及其框架的模态频率均可有效避开空压机激励频率，避免空压机的激励频率与模态频率重合所引起的空压机及其框架的剧烈振动。
Abstracts:
［Objective］ Air compressor is one of the main sources for metro vehicle vibration excitation. Reasonable modal matching design for air compressor is conducive to reducing the vehicle body vibration and noise, thereby improving the riding comfort of the vehicle. ［Method］ A finite element model of air compressor and its frame is established by using ANSYS finite element software. The influence of the two-stage vibration reduction suspension method for metro vehicle air compressor on its modal parameters is calculated and analyzed, and the above-mentioned suspension method between air compressor and its frame is optimized in the design. ［Result & Conclusion］ For the air compressor with a two-stage vibration reduction system, unreasonable suspension method is likely to cause the modal frequencies of air compressor and its frame close to the excitation frequency of the compressor, thus resulting in resonance. When rubber is adopted for the first-stage vibration reduction between the motor end, the compressor end and the frame, and rigid connection adopted for the second-stage vibration reduction between the air compressor frame and the vehicle body mounting seat, the modal frequencies of air compressor and its frame can effectively avoid excitation frequency of the air compressor, preventing the violent vibration of air compressor and its frame caused by the coincidence of the excitation frequency and the modal frequency.
- 上一篇: 高铁物流运输模式及其可行性
- 下一篇: 超导电动磁浮技术完善交通系统产业链
过刊浏览
资料下载
友情链接