ASME Ⅷ-2分析设计法在形状不规则零部件中的应用
姜红喜,李志刚,杨琼,张东海
(四川宏华石油设备有限公司,四川 成都 610036)
摘要:简介了ASME Ⅷ-2按分析设计法及其具体实施的等效线性化方法,并以提环强度分析为例,分别使用有限元常规分析及ASME Ⅷ-2按分析设计法进行强度计算,通过两种方法计算结论与现场试验结果的对比,可知:按照ASME Ⅷ-2对应力进行分类后,采用等效线性化方法,计算结果与实际使用情况更吻合;尤其对于形状不规则零部件,应力分类后,计算结果更符合实际工程应用;使用该方法设计计算,有利于在零部件的设计阶段,有效地把控零部件尺寸、评估影响、优化设计。
关键词:ASME Ⅷ-2分析设计方法;不规则零部件;应力分类;强度分析
中图分类号:TH123+.3 文献标志码:A doi:10.3969/j.issn.1006-0316.2018.12.010
文章编号:1006-0316 (2018) 12-0033-06
ASME Ⅷ-2 Application in Irregular Shape Parts and Components 
JIANG Hongxi,LI Zhigang,YANG Qiong,ZHANG Donghai
( Sichuan Honghua Petroleum Equipment Co., Ltd., Chengdu 610036, China )
Abstract:Introduce the stress classification analysis in ASME Ⅷ-2 alternative rules and its application – equivalent linearization method. Using the strength analysis of bail as example,considered the strength with  the routine element analysis and stress classification analysis in ASME Ⅷ-2 alternative rules, then compared the two different analysis results with the results of  factory experiment, found that after classifying stress as ASME Ⅷ-2 alternative rules, using the equivalent linearization method, the stress calculation result is more in line with actual usage, especially for the irregular shape parts and components, the analysis results is more suitable for engineering application; Using the stress classification analysis and the equivalent linearization method is good for designing the irregular shape parts and components, we can control the size of parts and components effectively, assess impact and optimize design. 
Key words:ASME Ⅷ-2 alternative rules;irregular shape parts and components;stress classification;strength analysis
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收稿日期:2018-05-25
作者简介:姜红喜(1984-),女,甘肃平凉人,硕士,工程师,主要从事石油机械设备设计研发工作。
 

 

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