| 船用液压联轴器外套线性强化自增强应力分析 |
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| 引用本文： | 陈奇,刘志刚. 船用液压联轴器外套线性强化自增强应力分析[J]. 力学与实践, 2005, 27(1): 18-21 |
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| 作者姓名： | 陈奇 刘志刚 |
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| 作者单位： | 哈尔滨工程大学动力与核能工程学院,哈尔滨,150001;哈尔滨工程大学动力与核能工程学院,哈尔滨,150001 |
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| 摘 要： | 为了提高船用液压联轴器的承载能力，需对联轴器外套进行自增强处理．采用线性强化模型，得到了液压联轴器外套自增强卸载后的残余应力、自增强压力和安装后的应力公式、公式表明最佳径比不仅与材料的屈服极限、弹性模量、线性强化弹性模量有关，还与鲍辛格效应系数有关、结合《船标》中规定尺寸进行了自增强分析，结果表明自增强外套的承载能力与非自增强外套的相比提高近50％．
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| 关 键 词： | 联轴器 自增强 残余应力 鲍辛格效应 |
| 修稿时间： | 2004-01-16 |
LINEAR AUTOFRETTAGE STRESS ANALYSIS OF HYDRAULIC COUPING'S OUTER SLEEVE |
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| CHEN Qi LIU Zhigang. LINEAR AUTOFRETTAGE STRESS ANALYSIS OF HYDRAULIC COUPING'S OUTER SLEEVE[J]. Mechanics and Engineering, 2005, 27(1): 18-21 |
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| Authors: | CHEN Qi LIU Zhigang |
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| Abstract: | Autofrettage in outer sleeves is used to improve carrying capacities of hydraulic coupling. Linear hardening model is used for residual stresses after autofrettage pressurization and after autofrettage depressurization. It is indicated that the best ratio of external radius to inner radius relates not only to the yielding limit, elastic modulus and linear strengthening elastic modulus but also to Bauschinger effect factors. The calculated results for the sizes given by CB*3235-84 shows that compared with non autofrettaged ones, carrying capacities of autofrettaged outer sleeves increases by nearly 50 percent. |
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| Keywords: | coupling autofrettage residual stress Bauschinger effect |
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