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文章采用有限元方法,以玻璃钢渔船帽形骨材的剖面顶角α的值为变量,建立系列有限元模型,比较分析它们在相同载荷和边界条件作用下的计算结果,探讨顶角对根部应力集中的影响。研究表明,帽形骨材腹板与壁板连接处的应力在一定范围内,随顶角α值的增大而减小,但大于某极值以后,又会迅速增大,即帽形骨材腹板与壁板连接处的应力存在着一个最小的极值点。文章的研究方法以及所得到的规律对玻璃钢渔船帽形骨材的设计具有一定的参考价值。
In this paper, the finite element method is used to establish a series of finite element models based on the value of α of the cross-sectional peak angle of hat-shaped aggregate of FRP fishing vessels. The results of calculation under the same load and boundary conditions are compared and analyzed. Concentration effect. The results show that the stress at the joint between the hat-shaped web and the wallboard decreases to a certain extent with the increase of the a value of the apex, but increases more rapidly than the extremum, There is a minimum extremum of stress at the web connecting the web to the wall. The research methods of the article and the rules obtained have certain reference value for the design of the FRP hat-shaped aggregate.