scholarly journals Effectiveness of Different Connectors Used in DLGs

10.29007/dksw ◽  
2018 ◽  
Author(s):  
Mansi Mehta ◽  
Dipali Patel ◽  
Vishal A. Arekar
Keyword(s):  
Double Layer ◽  
Parametric Study ◽  
Three Dimensional ◽  
Total Weight ◽  
Frame Structure ◽  
Space Frame ◽  
Static Loads ◽  
Large Span ◽  
Varying Thickness ◽  
Space Frame Structure

Double-Layer Grid structures are three-dimensional pin-jointed structures, which are generally used for covering roofs having large span areas with the help of connectors. A Double Layer Grid structures are quite popular as the use of material can be reduced, easy to assemble and permits quicker construction. The weight of the structure depends on the member as well as connectors. The connectors contain 20-30% of total weight (by referring Lan, T.T. “Space frame structure”). In present study, two types of Connectors are used for analysis and for optimisation of structure. The aim of this study is to optimize the design and to get the effective connector. Solid connector and Hollow connector (with varying thickness) have been taken for parametric study, modelled in CREO and analysed using ANSYS 17.2. The results of stresses have been obtained under the static loads for comparison.

The Application of Slip Joint Use in Space Frame Structure for Vehicle

2013 ◽  
Vol 423-426 ◽  
pp. 1944-1947
Author(s):  
Sheng Yun Lee ◽  
Ting Hao Cheng ◽  
Yu Ting Lin
Keyword(s):  
Dimensional Accuracy ◽  
Element Model ◽  
Frame Structure ◽  
Poor Control ◽  
Space Frame ◽  
Space Frames ◽  
The Common ◽  
The Finite Element Model ◽  
Joint Method ◽  
Space Frame Structure

The purpose of this paper is to analysis the finite element model of joint methods for chassis space frames of vehicles. Common tee-joint often have poor control of dimensional accuracy. The analysis includes the common tee-joint and new joint method. Although the new joint method will increase in weight a little and easily adjust the accuracy of space frame, it will also improve the connection strength.

An Investigation into the Design Parameters of Double Layer Space Frame Grids

1987 ◽  
Vol 2 (4) ◽  
pp. 215-222 ◽  
Author(s):  
Usama Rustom Madi
Keyword(s):  
Double Layer ◽  
Parametric Study ◽  
Design Parameters ◽  
Space Frame ◽  
Factors Affecting ◽  
Design Requirements

A parametric study of the various factors affecting the design of double layer space frame grids is presented. This parametric study was conducted with the help of example structures and covered the support arrangement, the grid depth, the grid module and the grid layouts. The intent is to give the designer an idea about the effects of the choice of any of these parameters on the grid's behaviour and design requirements. This information should serve as a means for developing successful preliminary designs and as such reduce the need for many trials before the design is finalised.

Analysis and test flight of drone frame using space frame structure

2020 ◽  
Vol 2020 (0) ◽  
pp. J19129
Author(s):  
Kazuki FUJITA ◽  
Toshiki YOSHIIKE ◽  
Takuya NEGISHI ◽  
Yumio MORIYA ◽  
Takaya KITAHORA ◽  
...  
Keyword(s):  
Frame Structure ◽  
Space Frame ◽  
Test Flight ◽  
Space Frame Structure

Research on Space Frame Structure in Regard of Member Initial Stress

2013 ◽  
Vol 351-352 ◽  
pp. 998-1003
Author(s):  
Mao Qing Liu ◽  
Jun Xu ◽  
Xin Xi Du
Keyword(s):  
Initial Stress ◽  
Cross Section ◽  
Computational Models ◽  
Initial Imperfection ◽  
Frame Structure ◽  
Economic Factors ◽  
Space Frame ◽  
Element Analysis ◽  
Stress Ratios ◽  
Space Frame Structure

To reveal the harm of member initial stress on space frame structure, several models which are different in initial imperfection methods, material computational models and upper optimized stress ratios are employed to do nonlinear finited element analysis. It finds that the initial stress method and Marshall model are more accurate to simulate. When design the space frame structure, it must be avoided to optimize the cross section excessively in pursuit of economic factors.

Space Rigid Frame Damage Identification Method Based on Modal Analysis

2013 ◽  
Vol 351-352 ◽  
pp. 1244-1248
Author(s):  
Hong Yu Jia ◽  
Peng Fei Yue ◽  
Xiao Fei Wang
Keyword(s):  
Modal Analysis ◽  
Structural Damage ◽  
Vibration Mode ◽  
Damage Identification ◽  
Three Dimensional ◽  
Frame Structure ◽  
Space Frame ◽  
First Order ◽  
Damage Location ◽  
Rigid Frame

Space frame structure of no damage and injury finite element models were established with ANSYS, and analyze 3D curvature mode as well three-dimensional vibration mode variety rate of the space rigid frame based on modal analysis. Curvature mode and three-dimensional vibration mode variety rate as the labeled amount was selected and applied to structural damage. The calculated results showed that the first-order curvature mode not only identify against single or multiple damage location, but also determine the initial degree of injury, and the axial curvature mode is better than the horizontal curvature mode for damage identification; The calculated results also showed that the variety rate of the first-order vibration mode can identify against damage location. Methods were provided by identifying the space frame structural damage of the curvature mode or three-dimensional vibration mode variety rate.

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