Nondestructive testing sensor using semiregular architecture with folding ligaments

7th Modern Technologies in Industrial Engineering

工业技术（总论）

Iftimie, N.^1 ; Savin, A.^1 ; Steigmann, R.^1 ; Stanciu, M.D.^2

National Institute of Research and Development for Technical Physics, Blvd D. Mangeron No. 47, Iasi, Romania^1

Transilvania University, Mechanical Engineering Department, 29 Eroilor Blvd, Brasov

500036, Romania^2

关键词: Electromagnetic testing;    Patterned structure;    Reconfigurable;    Structural topology optimization;    Unit cells;    Unit structure;    Wave propagation characteristics;    Wavelength excitations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/591/1/012051/pdf
DOI  :  10.1088/1757-899X/591/1/012051

学科分类：工业工程学

来源: IOP

【 摘 要 】

In present, much more studies on patterned structures composed of periodic unit-structures have been performed. These studies mainly based on the electromagnetic wave propagation, because the variation of physical properties of the patterned structure depends on the change in the unit-structure. Structural topology optimization has made remarkable progress over the past decades. The periodic topology of many periodic cellular makes the analysis of their wave propagation characteristics particularly interesting. This paper presents the results obtained at the electromagnetic testing using a structure in a semiregular arrangement with "exotic" behavior. The CAD/CAM models of reconfigurable folding architecture were designed in the multiple flat unit cells structure considering that the kinematics of a structure with ligaments is function of the angle in the XY horizontal plane. It was followed in response to the modification of the architecture and the size of the structure, their response to the interaction with the electromagnetic field. The simulation of the operation of the wavelength excitation process, first realized theoretically using the Finite Difference Time Domain (FDTD) method, was performed using specialized XFDTD software.