Open AccessDesign and Simulation of a Porous Rectangular Board-Foldable Trolley
Author(s) -
Yau-Ren Shiau,
Jiunn Fang,
Yulan Chen
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/644/1/012027
Subject(s) - transient (computer programming) , porosity , materials science , deformation (meteorology) , structural engineering , stress (linguistics) , mechanics , volume (thermodynamics) , bending , porous medium , size effect on structural strength , finite element method , composite material , engineering , computer science , physics , thermodynamics , linguistics , philosophy , operating system
To reduce the structural weight and volume and satisfy an optimal balance of performance constraints, a study using a porous rectangular foldable board and structurally improved trolley model was conducted, and motion simulations were performed to derive the static and transient structural properties. The simulations revealed that the fatigue lifetimes of both the main structure and the porous boards were in a high-standard-value range, whereas the transient analysis indicated that both the directional deformation and equivalent stress exhibited minimal local values. For porous boards simply supported only on two sides, the trolley had a much smaller collapsed volume than other types of trolley. The static analysis indicated that this trolley prototype had a good safety coefficient and long fatigue lifetime. The transient analysis showed that the porous area had a higher strength and bending load than the non-porous area. The overall transient response was close to that of a steady-state, showing a negligible effect on the structure.tc.