Parametric Design and Static Performance Comparison of Six Typical Spherical Semi-open Reticulated Shell

Junchao Cao,Xiaoyang Lu,Dayong Li,Shuai Chong,Lili Huang,W Qin,L Wang,V Yepes

doi:10.1051/e3sconf/202016506057

Abstract

By using ANSYS Parametric Design Language (APDL), this paper compiled the parametric design macro program for six types of single-layer semi-open spherical reticulated shell structure. Parametric design of the six types of reticulated shell structure was realized with given parameters of span S, the vector high F, radial node cycles number Nx, ring to symmetric regional copies number Kn, and the upper removed laps Ns. The stress performance of the six types of reticulated shell structure was compared and analyzed. Modelling examples demonstrated that the parametric design macro program is simple, practical and improves the efficiency of the selection of the reticulated shell design and the stress analysis under different geometric parameters. Through the comparative analysis of stress performance, some conclusions with engineering significance were obtained.

Highlights

The semi-open reticulated shell structure is a new curved space mesh structure, which has beautiful shape, reasonable stress, and both the characteristics of the rod system and thin shell structure.It has a broad development space and application prospect [1]
Studying the distribution law of rods and nodes of different types of reticulated shell, and applying the parametric design method of the semi-open reticulated shell based on the typical reticulated shell [4], can improve the efficiency of structural design, stress analysis and the selection and optimization design of various semi-open spherical reticulated shell [5,6,7]
(1) In this paper, six methods are proposed for the joint generation and rod connection of semi-open spherical reticulated shell by using ANSYS software parametric design language ANSYS Parametric Design Language (APDL)

Summary

Introduction

The semi-open reticulated shell structure is a new curved space mesh structure, which has beautiful shape, reasonable stress, and both the characteristics of the rod system and thin shell structure.It has a broad development space and application prospect [1]. The changes of the parameters such as the type, span, vector high, ring to symmetric regional copies number and radial node cycles will result in the redistribution of the internal forces and change of the structure cost [1]. The main geometric parameters are: span S, the vector high F, radial node cycles number Nx, ring to symmetric regional copies number Kn and upper removed laps Ns. The geometric description of ribbed semi-open spherical reticulated shell are shown in figure 4.

Results

Conclusion