| 钢板弹簧疲劳分析 |
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| 引用本文： | 朱茂桃,熊梦锦,何志刚,张华俊,朱德江.钢板弹簧疲劳分析[J].农业机械学报,2006,37(3):149-152. |
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| 作者姓名： | 朱茂桃 熊梦锦 何志刚 张华俊 朱德江 |
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| 作者单位： | 1. 江苏大学汽车与交通工程学院,212013,镇江市
2. 南京汽车研究所,210013,南京市 |
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| 摘 要： | 传统的钢板弹簧强度分析中,多是借助简化的力学模型,基于材料力学的小挠度梁的线弹性理论进行计算,计算中的假设条件和计算方法与钢板弹簧实际情况不尽相符,计算结果存在误差。在钢板弹簧的结构应力计算基础上,通过建立钢板弹簧装配及加载状态的精确有限元模型,并考虑片间的非线性接触,在交变载荷作用下,计算得到钢板弹簧接近实际工况的应力循环,然后利用其S N曲线,基于Miner线性累计损伤准则计算其疲劳寿命。通过钢板弹簧的实际疲劳试验,验证了模型计算结果的正确性。
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| 关 键 词： | 钢板弹簧 疲劳试验 寿命 有限元分析 |
| 收稿时间： | 11 19 2004 12:00AM |
| 修稿时间： | 2004年11月19 |
Fatigue Analysis for Leaf Spring |
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| Zhu Maotao,Xiong Mengjin,He Zhigang,Zhang Huajun,Zhu Dejiang.Fatigue Analysis for Leaf Spring[J].Transactions of the Chinese Society of Agricultural Machinery,2006,37(3):149-152. |
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| Authors: | Zhu Maotao Xiong Mengjin He Zhigang Zhang Huajun Zhu Dejiang |
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| Institution: | 1.Jiangsu University 2.Nanjing Automobile Institute |
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| Abstract: | In the traditional fatigue analysis for leaf spring, simplified model and linear elastic theory based on small-bend beam of material mechanics was often used so the hypothetical condition and method of calculation were a little far away from real condition, the results of calculation had some errors. Combining result of research with current situation of development, based on structure stress of leaf spring, through building precise FEA model in assembled-state and loaded-state of leaf spring, and considering non-linear contact between leafs, stress-circulation close to real condition was obtained. By applying alternating-change load, and utilizing its SN curve and Miner linear accumulative damage rules fatigue life was calculated. Through real fatigue test of leaf spring result of calculation was validated. |
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| Keywords: | Leaf spring Fatigue tests Life Finite element analysis |
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