摘要
探讨了悬置道路模拟实验中频响函数的建立和路谱迭代方法。以某款轿车的发动机液压悬置为研究对象,在试验场采集了悬置的道路载荷谱。通过基于远程控制参数技术(RPC)对发动机悬置道路载荷谱进行了重构,重构的道路载荷谱达到了预期的精度要求。论述了建立悬置路谱模拟试验的总载荷序列的方法。应用文中的方法,在MTS831试验台架上对液压悬置进行了道路模拟耐久性试验,试验结果表明,所采用方法可成功用于悬置耐久性试验。
Abstract
A method for determining frequency response function and road spectrum iteration steps of road simulation experiment were given and discussed in this study. Taking one Hydraulic Engine Mount (HEM) in a car as study example, and the road spectrum exerted on the HEM was acquisied in a proving ground. The road spectrum was reconstructed with remote parameter control technology, and the results show that the reconstructed load agrees well with the original one. Also, the method for determining the load block sequence was given and discussed. The durability experiment for an HEM was carried out with MTS 831 test rig using the methods presented in this paper. It’s shown that the methods are effective in doing durability experiment for a mount.
关键词
道路模拟试验 /
耐久性 /
悬置
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Key words
road simulation /
durability /
mount
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上官文斌;谢新星;丁维;黄兴;徐驰.
汽车动力总成悬置耐久性模拟试验研究[J]. 振动与冲击, 2011, 30(10): 39-44
SHANGGUAN Wen-Bin;XIE Xinxing;DING Wei;HUANG Xing;XU Chi.
A study on road simulation experiment for mount durability[J]. Journal of Vibration and Shock, 2011, 30(10): 39-44
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