Listening as your neighbors: Simulation and evaluation of building structural transmission

2013 ◽  
Vol 134 (5) ◽  
pp. 4221-4221
Author(s):  
Fangyu Ke ◽  
Cheng Shu ◽  
Xiang Zhou ◽  
Xuchen Yang ◽  
Gang Ren ◽  
...  
Keyword(s):  
Structural Transmission ◽  
Simulation And Evaluation

scholarly journals QSM reconstruction challenge 2.0: A realistic in silico head phantom for MRI data simulation and evaluation of susceptibility mapping procedures

2021 ◽  
Vol 86 (1) ◽  
pp. 526-542
Author(s):  
José P. Marques ◽  
Jakob Meineke ◽  
Carlos Milovic ◽  
Berkin Bilgic ◽  
Kwok‐Shing Chan ◽  
...  
Keyword(s):  
In Silico ◽  
Susceptibility Mapping ◽  
Data Simulation ◽  
Simulation And Evaluation

Design of Two-Dimensional Ultrasonic Phased Array Transducers

2005 ◽  
Vol 127 (3) ◽  
pp. 336-344 ◽  
Author(s):  
Shyamal C. Mondal ◽  
Paul D. Wilcox ◽  
Bruce W. Drinkwater
Keyword(s):  
Phased Array ◽  
Three Dimensional ◽  
Array Element ◽  
Two Dimensional ◽  
Circular Array ◽  
Single Location ◽  
Ultrasonic Phased Array ◽  
3D Point Spread Function ◽  
3D Volume ◽  
Simulation And Evaluation

Two-dimensional (2D) phased arrays have the potential to significantly change the way in which engineering components in safety critical industries are inspected. In addition to enabling a three-dimensional (3D) volume of a component to be inspected from a single location, they could also be used in a C-scan configuration. The latter would enable any point in a component to be interrogated over a range of solid angles, allowing more accurate defect characterization and sizing. This paper describes the simulation and evaluation of grid, cross and circular 2D phased array element configurations. The aim of the cross and circle configurations is to increase the effective aperture for a given number of elements. Due to the multitude of possible array element configurations a model, based on Huygens’ principle, has been developed to allow analysis and comparison of candidate array designs. In addition to the element configuration, key issues such as element size, spacing, and frequency are discussed and quantitatively compared using the volume of the 3D point spread function (PSF) as a measurand. The results of this modeling indicate that, for a given number of elements, a circular array performs best and that the element spacing should be less than half a wavelength to avoid grating lobes. A prototype circular array has been built and initial results are presented. These show that a flat bottomed hole, half a wavelength in diameter, can be imaged. Furthermore, it is shown that the volume of the 3D reflection obtained experimentally from the end of the hole compares well with the volume of the 3D PSF predicted for the array at that point.

A Rapid Simulation and Optimization Study of Production Line

2013 ◽  
Vol 397-400 ◽  
pp. 12-15 ◽  
Author(s):  
Xiang Fei Ma ◽  
Di Liang ◽  
Yu Cheng Pan ◽  
Hua Dong Wang
Keyword(s):  
Production Line ◽  
Distribution Fitting ◽  
Statistical Tool ◽  
Optimal Program ◽  
Simulation And Optimization ◽  
Imbalance Problem ◽  
Optimization Study ◽  
Fitting In ◽  
Simulation And Evaluation ◽  
Body Production

Based on intermittent production line balance problem, Minitab statistical tool is used for data random distribution fitting in this paper and the car body production line model of one company is established and simulated under Flexsim environment, which benefits the line imbalance problem to be found quickly and accurately. Designing optimal program based on project management network analysis and making simulation and evaluation, the productivity is improved effectively and the time to balance and optimize production line is shortened greatly.

Sign in / Sign up

Export Citation Format

Share Document