基于道路载荷谱的轻型卡车车门振动特性
研究
闫鑫
1
、姜迪
2
、白阳阳
1
、伊维天
1
、郭振宇
1
、姜照川
2
(1.一汽解放汽车有限公司商用车开发院,长春市,130025;2.一汽研发总院,长春市,130013)
[摘要]针对某用户轻型卡车车门上框振动导致的问题,在相似路面工况进行道
路载荷谱测试与分析并提取目标信号,建立包含车门的驾驶室及悬置系统多体
动力学模型,通过虚拟载荷迭代获取驾驶室在实测路面的位移驱动,修正各系统
弹性元件特性以获得较为准确的车门系统动力学响应,进行车门结构优化确保
车门上框关键点动态响应在各种严苛条件下满足用户要求,同时为车门系统的
正向设计提供科学合理的方法。
关键词:车门系统振动;道路载荷谱;虚拟载荷迭代;结构优化
A Research on Vibration Performance of Light Duty Truck Doors Based
on Road Load Spectrum
Yan Xin
1
,Jiang Di
2
,Bai Yangyang
1
,Yi Weitian
1
,Guo Zhenyu
1
&Jiang Zhaochuan
2
1.FAW Jiefang Auto Co.,Ltd. Commercial Vehicle Development Institute, Changchun city
,
130025
;
2.General R&D Institute of FAW
,
Changchun city
,
130013
[Abstract] Based on the vibration problem of Some users' light truck door frame,
road load spectrum in similar pavement condition was obtained and extracted as the
target signals .Including the doors, the multi-body dynamics model of cab suspension
system was built so as to do virtual load iteration to get the real displacement driver of
the cabin .By fixing the elastic element system features, more accurate system
dynamic response was acquired. By means of structure optimization on the key points
to ensure that the door frame dynamic response in all kinds of harsh conditions could
meet user's requirements. At the same time the scientific and reasonable method of
product forward design was provided for the door system .
Keywords: vibration of door system; road load spectrum; virtual load iteration;
structure optimization
1
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