机械

焊接是大型游乐设施的主要连接方式,焊缝设计计算直接关系到游乐设施的正常运行和乘客的生命安全。本文以大型游乐设施中的焊缝为例,对焊缝部位的应力,分别按照力学理论计算和有限元分析计算,给出对接焊缝和角焊缝的计算公式和校核评价方法,并对有限元计算建模时,是否考虑焊缝材料进行了分析比较。研究表明,焊缝的校核计算应该按照名义计算应力进行校核评价,不宜用有限元法去校核评价的游乐设施焊缝。研究方法和结果为大型游乐设施结构件焊缝的校核计算提供参考性建议和依据。

Welding is the main connection method of large-scale amusement device. The weld design calculation is directly related to the normal operation of the equipment and the safety of the passengers. Taking the welds of large-scale amusement device as an example in this paper, the stress of the weld is calculated according to theory calculation and finite element analysis. The calculation formulas and evaluation methods of butt welds and fillet welds are given, and a comparison analysis is made on whether or not to consider the weld materials when modeling. The research shows that the calculation of weld should be evaluated according to the nominal calculated stress. it is not appropriate to use the finite element method to check the welds of amusement device. The research methods and results provide the reference recommendations and reference for the design and calculation of welds of amusement device.