矩形薄壁容器的有限元计算
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摘要
针对矩形薄壁容器,分析了其常规设计方法的不足。为了满足结构的刚性要求,保证结构安全可靠,提出了用有限元分析方法进行计算分析。以矩形下料仓为例,利用ANSYS有限元软件对其进行应力计算及分析。结果表明,该方法设计的薄壁容器在指定的工作状况下满足结构强度要求,且评定依据较常规设计方法更为可靠。
The deficiency of conventional design method for rectangular thin-walled container was analyzed.In order to meet the rigid demand of the structure and ensure its safety and reliability, the finite element analysis method was proposed to carry out the calculation and analysis. Taking the rectangular silo as an example, the stress calculation and analysis were carried out by the ANSYS finite element software. The results showed that the thin-walled container designed by this method met the structural strength requirement under the required working conditions, and the evaluation basis was more reliable than the conventional design method.
The deficiency of conventional design method for rectangular thin-walled container was analyzed.In order to meet the rigid demand of the structure and ensure its safety and reliability, the finite element analysis method was proposed to carry out the calculation and analysis. Taking the rectangular silo as an example, the stress calculation and analysis were carried out by the ANSYS finite element software. The results showed that the thin-walled container designed by this method met the structural strength requirement under the required working conditions, and the evaluation basis was more reliable than the conventional design method.
引文
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[3]黄荣学,曹建国,范洪远.有限元方法在冲压模具分析中的应用及展望[J].锻压技术,2005,30(2):69-72.
[4]赵春霞,许树勤.大型环件轧制过程有限元模型的简化[J].锻压装备与制造技术,2007,42(5):90-92.
[5]郝勇,钟礼东.ANSYS 15.0有限元分析完全自学手册[M].北京:机械工业出版社,2015.
[6]曹占飞.用壳单元进行30°斜开孔补强计算的可行性研究[J].石油化工设备技术,2007,28(3):1-2,69.
[7]陈小辉,董俊华,高炳军.壳单元在压力容器分析设计中的应用[J].河北工业大学学报,2010,39(5):29-32,36.
[8]宋轶,腾儒民,陈礼.基于ANSYS壳单元与三维实体单元的锅炉管板分析[J].中国特种设备安全,2012(7):8-10.
[9]郭崇志,陈文昕,纪昌盛.大型薄壁压力容器Shell51单元模型的应力线性化分析[J].化工机械,2005,32(5):275-278.
[10]杜伟.矩形压力蒸汽灭菌器设计方法及其结构优化研究[D].杭州:浙江大学,2007.
[11]郑贤中,邵泽亮,於潜军.隧道救援吊车机臂的结构分析[J].武汉工程大学学报,2016,38(6):599-604.
[12]JORGE R M N,FERNANDES A A.Design of a steamheated sterilizer based on finite element method stress analysis[J].International Journal of Pressure Vessels and Piping,2001,78(9):627-635.
[13]全国压力容器标准化技术委员会.钢制压力容器—分析设计标准:JB/T 4732—1995(2005年确认)[S].北京:中国机械工业出版社,1995.
[14]卢艳玲,董金善,朱星榜,等.壳单元和实体单元在矩形压力蒸汽灭菌器有限元分析中的应用[J].化工机械,2016,43(4):495-499.