摘要
在化工设备的吊装操作中,吊耳组件的安全性评估至关重要。现行规范HG/T 20582—2020《钢制化工容器强度计算规范》对于吊耳安全性的评估提供了指导,其中外力在圆筒上引起轴向弯曲应力系数的计算公式与其图解模型并不完全吻合,这会影响安全校核的准确性。文章提出了数值拟合和二次插值相结合的改进方法,并在此基础上,使用Python编程语言开发了吊耳校核的辅助计算软件。结果表明:所研软件可以快速计算吊耳及圆筒型化工容器弯曲应力系数,同时自动评估局部应力,其计算精度达到99.5%,可以显著降低人工计算的误差。
In the lifting operation of chemical equipment,the safety assessment of the lifting lug components is crucial.The current specification HG/T 20582-2020“Code for Strength Calculation of Steel Chemical Container”provides guidance for the assessment of the safety of lifting lugs.However,the calculation formula of the radial external force on the internal torque of the lifting lug does not fully match its graphical model in this specification,which may affect the accuracy of safety verification.This paper proposes an improved method that combines numerical fitting and quadratic interpolation;On this basis,an auxiliary calculation software for lug verification is developed by Python.The results show that the software can quickly calculate the bending stress coefficient of lifting lug and cylindrical chemical container,and automatically evaluate local stress.The calculation accuracy reaches 99.5%,which can significantly reduce the error of manual calculation.
作者
姜洪奎
陈程
尚晓成
于翰文
胡效东
JIANG Hongkui;CHEN Cheng;SHANG Xiaocheng;YU Hanwen;HU Xiaodong(School of Mechanical and Electrical Engineering,Shandong Jianzhu University,Jinan 250101,China;School of Mechanical and Electronic Engineering,Shandong University of Science and Technology,0x09Qingdao 266000,China)
出处
《山东建筑大学学报》
2025年第1期87-95,共9页
Journal of Shandong Jianzhu University
基金
山东省自然科学基金项目(ZR2020ME117)
山东建筑大学教学改革研究项目(XJG2022015)
研究生教育优质课程建设项目(201304)。
关键词
吊耳校核
PYTHON
数值拟合
二次插值
lifting lug verification
Python
numerical fitting
quadratic interpolation
作者简介
通信作者:姜洪奎(1976-),男,教授,博士,主要从事精密机械设计、多体动力学分析等方面的研究。E-mail:Jhk_2001@163.com。
