A strategy of parallel winding of circumferential ribs and helical ribs for composite cylindrical grid structures

2021 ◽  
pp. 114351
Author(s):  
Peng Zhang ◽  
Zhenyu Han ◽  
Jiachen Gu ◽  
Shouzheng Sun ◽  
Hongya Fu
Keyword(s):  
Cylindrical Grid

TLM analysis of the inverted microstrip patch antenna in a cylindrical grid

2014 ◽  
Author(s):  
Tijana Dimitrijevic ◽  
Jugoslav Jokovic ◽  
Nebojsa Doncov ◽  
Aleksandar Atanaskovic ◽  
Kurt Blau
Keyword(s):  
Patch Antenna ◽  
Microstrip Patch Antenna ◽  
Microstrip Patch ◽  
Cylindrical Grid

Seismic Analysis of the Single-Layered Cylindrical Grid Shell

2012 ◽  
Vol 166-169 ◽  
pp. 2159-2163 ◽  
Author(s):  
Cheng Shen ◽  
Cheng Wei Huang ◽  
Yong Lin Gao
Keyword(s):  
Seismic Performance ◽  
Seismic Analysis ◽  
Dynamic Properties ◽  
Static Stability ◽  
Spatial Structures ◽  
Long Span ◽  
Light Duty ◽  
Grid Shell ◽  
Cylindrical Grid ◽  
Spatial Grid

Among the long-span spatial structures, the grid shell has many advantages compared to the other spatial structures.Because of the combination of the reasonableness of mechanics and the economy production,and characteristics of the light-duty and the mature design methods,this structure has more wider application than the others.At present,the static stability problem of spatial grid shell structure has been well solved,but the research about dynamic properties and seismic performance is imperfect,especially about single-layered cylindrical grid shell.So this paper does some research about the seismic performance on the base of numerical analysis.

Direct Numerical Simulation of Turbulent Mass Transfer Around a Rotating Stepped Cylinder

2007 ◽  
Author(s):  
Dong-Hyeog Yoon ◽  
Kyung-Soo Yang ◽  
Klaus Bremhorst
Keyword(s):  
Numerical Simulation ◽  
Mass Transfer ◽  
Direct Numerical Simulation ◽  
Low Cost ◽  
Mass Transfer Rate ◽  
Concentration Field ◽  
Immersed Boundary ◽  
Cylinder Surface ◽  
Cylindrical Grid ◽  
Original Motivation

Direct Numerical Simulation was carried out to predict mass transfer in turbulent flow around a rotating stepped cylinder. An immersed boundary method was employed for efficient implementation of the irregular cylinder surface on the cylindrical grid system. This investigation is a follow-up study of Nesic et al. [Corrosion, Vol. 56, No. 10, pp. 1005 – 1014] The original motivation of this work stemmed from the efforts to design a simple device which can generate flows of high turbulence intensity at low cost for corrosion researchers. Two cases were considered; Sc = 1 and 10 both at Re = 335. Here, Sc and Re stand for Schmidt number and Reynolds number, respectively, based on the step height and the surface speed of the cylinder upstream of the step. Characteristics of the averaged concentration field are presented and analyzed. Correlation between the wall-shear stress and the mass-transfer rate is also discussed. The numerical results are qualitatively compared with those of experiments conducted with a similar flow configuration.

scholarly journals Stability of metal cylindrical grid shell structures

2019 ◽  
Vol 675 ◽  
pp. 012067
Author(s):  
A I Siyanov ◽  
M Rynkovskaya ◽  
E Tupikova
Keyword(s):  
Shell Structures ◽  
Grid Shell ◽  
Cylindrical Grid

Parametric Study of Specific Buckling Load of Cylindrical Grid Stiffened Composite Shells

2012 ◽  
Vol 13 (1) ◽  
pp. 482-485 ◽  
Author(s):  
Hamid Shahsavari Alavijeh ◽  
Soroush Sadeghnejad ◽  
Mojtaba Sadighi
Keyword(s):  
Parametric Study ◽  
Buckling Load ◽  
Composite Shells ◽  
Cylindrical Grid

scholarly journals Bounds on the Size of the Minimum Dominating Sets of Some Cylindrical Grid Graphs

2014 ◽  
Vol 2014 ◽  
pp. 1-13
Author(s):  
Mrinal Nandi ◽  
Subrata Parui ◽  
Avishek Adhikari
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Domination Number ◽  
Cartesian Product ◽  
Wireless Sensor ◽  
Dominating Sets ◽  
Grid Graph ◽  
Grid Graphs ◽  
Cylindrical Grid ◽  
Domination Numbers

Let γPm □ Cn denote the domination number of the cylindrical grid graph formed by the Cartesian product of the graphs Pm, the path of length m, m≥2, and the graph Cn, the cycle of length n, n≥3. In this paper we propose methods to find the domination numbers of graphs of the form Pm □ Cn with n≥3 and m=5 and propose tight bounds on domination numbers of the graphs P6 □ Cn, n≥3. Moreover, we provide rough bounds on domination numbers of the graphs Pm □ Cn, n≥3 and m≥7. We also point out how domination numbers and minimum dominating sets are useful for wireless sensor networks.

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