摘要
应用三维软件,分别基于理想球面和实际网壳建立单层球形网壳结构在风场中的受力模型。采用单向流固耦合技术,将风压施加至单层球形网壳结构模型,比较相同位置梁的组合应力,确认用理想球面代替实际网壳进行研究的可行性。在此基础上,分析不同矢径比网壳结构在风场中的合力变化规律。随着矢径比不断增大,风场中的水平合力增大,提升力先增大后减小,两者的绝对值越来越接近。
Using three-dimensional software,the stress model of the single-layer spherical reticulated shell structure in the wind field was established based on the ideal spherical surface and the actual reticulated shell.Using unidirectional fluid-solid coupling technology,wind pressure was applied to the single-layer spherical reticulated shell structure model,and the combined stress of beam at the same position was compared to confirm the feasibility of using an ideal spherical surface to replace the actual reticulated shell.On this basis,the change law of the resultant force of the reticulated shell structure with different radius vector ratios in the wind field was analyzed.As the radius vector ratio continues to increase,the horizontal resultant force in the wind field increases,the raising force first increases and then decreases and the absolute values of the two are getting closer and closer.
出处
《机械制造》
2021年第7期37-40,共4页
Machinery
基金
河南省重点研发与推广专项(编号:212102210623,192102210226)。
关键词
网壳
结构
风场
仿真
Reticulated Shell
Structure
Wind Field
Simulation
