| 装载机动臂薄弱点的应力分析 |
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| 引用本文： | 夏兆沂,刘崇,韩其章.装载机动臂薄弱点的应力分析[J].工程机械,2009,40(11):28-30. |
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| 作者姓名： | 夏兆沂 刘崇 韩其章 |
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| 作者单位： | 山东临工工程机械有限公司 |
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| 摘 要： | 装载机动臂是工作装置的主要受力构件，其结构强度设计经校核计算都能得到保证，但有时局部的细节设计不当也会引起大的故障。借助于PATRAN／NASTRAN有限元分析软件，以装载机动臂为研究对象，对动臂上3个容易出现故障的细节位置进行线性静强度应力分析后发现，故障处均存在应力集中的现象。对应力集中处的结构进行改进与分析，对改进前后的有限元分析结果进行对比，结果表明装载机动臂的工作寿命与可靠性得到提高，说明细节结构设计在强度设计中具有重要作用。
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| 关 键 词： | 装载机 动臂 有限元 应力集中 |
Stress Analysis for Weak Points of Loader Boom |
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| Xia Zhaoyi,Liu Chong,Han Qizhang.Stress Analysis for Weak Points of Loader Boom[J].Construction Machinery and Equipment,2009,40(11):28-30. |
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| Authors: | Xia Zhaoyi Liu Chong Han Qizhang |
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| Abstract: | A loader boom is an important load bearing part of attachment. Its structural strength design can be ensured by check calculation but sometimes inadequate detail design in partial locations may induce severe failures. Taking the boom of loader attachment as researching object, linear static strength analysis is conducted on three detailed locations on the boom by using PATRAN/NASTRAN finite element analysis software and failure cause found out is the existence of stress concentration. Structures with stress... |
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| Keywords: | Loader Boom Finite element Stress concentration |
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