| 轮式装载机车架载荷谱及程序谱模拟疲劳试验 |
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| 引用本文： | 徐跃峰,凌正炎.轮式装载机车架载荷谱及程序谱模拟疲劳试验[J].武汉科技大学学报(自然科学版),1996(2). |
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| 作者姓名： | 徐跃峰 凌正炎 |
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| 作者单位： | 武汉冶金科技大学(徐跃峰)，北京科技大学(凌正炎) |
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| 摘 要： | 以ＺＬ５０装载机后车架为研究对象，在进行整机静态与动态测试基础上，编制了疲劳载荷谱和程序试验谱。并在电液伺服结构疲劳试验机上首次对后车架做了疲劳试验，取得了良好的结果。在研究方法上，提出考虑机器负重应力、载荷谱的频次扩展和用局部应力场模拟原理设计试件等理论。这对工程机械设计研究有参考价值。
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| 关 键 词： | 载荷谱 应力循环 疲劳试验 |
THE DEVELOPMENT OF SERVICE LOAD SPECTRA AND THE PROGRAM SIMULATED FATIGUE TEST OF THE WHEEL LOADER FRAME |
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| Xu Yuefeng,Ling Zhengyan.THE DEVELOPMENT OF SERVICE LOAD SPECTRA AND THE PROGRAM SIMULATED FATIGUE TEST OF THE WHEEL LOADER FRAME[J].Journal of Wuhan University of Science and Technology(Natural Science Edition),1996(2). |
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| Authors: | Xu Yuefeng Ling Zhengyan |
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| Institution: | Xu Yuefeng Ling Zhengyan |
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| Abstract: | This paper takes the rear frame of ZL 50 type wheel loader as a typical example;its fatigue load spectra and programmed test spectra are developed on the basis of static and dynamic measurement and test of the machine.For the first time the fatigue test of rear frame is carried out on a hydroelectric servo structural fatigue test machine.Good results are abtained.Meanwhile,some new opinions are proposed such as the self weighing effect,the frequency extention of load spectra and the local stress field simulation test,etc.The results presented here are of important value to other engineering machinary design. |
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| Keywords: | load spectra stress cycle fatigue test |
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