关于轴式吊耳局部应力检测方法的探讨
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摘要
为解决传统轴式吊耳的局部应力检测方法存在应力检测准确度较低的问题,提出一种轴式吊耳的局部应力检测方法,对轴式吊耳的局部应力进行简化与计算,获取轴式吊耳的局部应力值,利用局部应力的计算结果建立轴式吊耳局部应力有限元检测模型,利用该模型对轴式吊耳进行局部应力检测。对比实验数据表明,该方法比基于参数化技术的吊耳局部应力检测方法的准确度高25. 93%;比基于力学模型分析的吊耳局部应力检测方法的应力检测准确度高62. 505%,证明该方法对轴式吊耳的局部进行应力检测的效果更好。
In order to solve the problem of low accuracy of stress detection in traditional local stress detection method of shaft lifting lug,a local stress detection method of shaft lifting lug is proposed,which simplifies and calculates the local stress of shaft lifting lug,obtains the local stress value of shaft lifting lug,and establishes the finite element detection model of local stress of shaft lifting lug by using the calculation result of local stress. The local stress of the shaft lifting lug is measured by this model. The comparison of experimental data showed that the method is 25. 93% more accurate than the local stress detection method based on parameterized technology and 62. 505% more accurate than the local stress detection method based on mechanical model analysis,which proves that the method is more effective in the local stress detection of shaft lifting lug.
In order to solve the problem of low accuracy of stress detection in traditional local stress detection method of shaft lifting lug,a local stress detection method of shaft lifting lug is proposed,which simplifies and calculates the local stress of shaft lifting lug,obtains the local stress value of shaft lifting lug,and establishes the finite element detection model of local stress of shaft lifting lug by using the calculation result of local stress. The local stress of the shaft lifting lug is measured by this model. The comparison of experimental data showed that the method is 25. 93% more accurate than the local stress detection method based on parameterized technology and 62. 505% more accurate than the local stress detection method based on mechanical model analysis,which proves that the method is more effective in the local stress detection of shaft lifting lug.
引文
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[10]张宁,刘永健,李慧. PBL加劲型矩形钢管混凝土轴压柱局部屈曲性能分析[J].建筑科学与工程学报,2017,34(42):195-202.
[2]王莉莉,张寒,齐晗兵,等.高温下含椭球型缺陷管道局部应力分析[J].石油化工高等学校学报,2018,31(34):195-200.
[3]刘宏超,谢培军,袁小勤,等.塔器轴式吊耳强度计算及有限元应力分析[J].石油化工设备,2017,46(52):129-133.
[4]张微,谢培军,宋启祥,等.大型薄壁设备轴式吊耳局部应力设计计算[J].辽宁化工,2017,46(48):804-807.
[5]赵洋.预应力钢束锚固区局部应力分析及拉压杆模型的应用[J].城市道桥与防洪,2017,12(13):182-187.
[6]李文治,曹东国,王晓军,等.城市立交拼宽工程中异形板梁的局部受力分析及配筋探讨[J].城市道桥与防洪,2017,12(13):117-120.
[7]王培军,朱绪林,杜瑞红.内压与局部轴压共同作用下钢筒仓屈曲性能研究(Ⅱ):屈曲应力计算方法[J].建筑钢结构进展,2017,19(23):158-165.
[8]廖小伟,王元清,宗亮,等.基于有效缺口应力法的钢桥焊接细节疲劳分析[J].浙江大学学报(工学版),2017,51(61):1 111-1 118.
[9]王跃,郑玉超,王培军,等.均布与局部轴压作用下薄壁钢筒仓屈曲性能研究[J].建筑钢结构进展,2017,19(22):160-167.
[10]张宁,刘永健,李慧. PBL加劲型矩形钢管混凝土轴压柱局部屈曲性能分析[J].建筑科学与工程学报,2017,34(42):195-202.