Piezoelectric Performance of PVDF Composites for Transportation Engineering: A Multi-Scale Simulation Study

2021 ◽  
Author(s):  
Xiao-Hong Yin ◽  
Jin-Wen Jian ◽  
Can Yang ◽  
Tao Cheng
Keyword(s):  
Simulation Study ◽  
Transportation Engineering ◽  
Multi Scale ◽  
Piezoelectric Performance

Piezoelectric Performance of PVDF Composites for Transportation Engineering: A Multi-Scale Simulation Study

2020 ◽  
Author(s):  
Xiao-Hong Yin ◽  
Jin-Wen Jian ◽  
Can Yang ◽  
Tian Lei ◽  
Tao Cheng
Keyword(s):  
Vinylidene Fluoride ◽  
Transportation Engineering ◽  
Piezoelectric Composites ◽  
Micro Scale ◽  
Multi Scale ◽  
Piezoelectric Energy ◽  
Cantilever Structure ◽  
Macro Scale ◽  
Poly Vinylidene Fluoride ◽  
Piezoelectric Performance

Abstract In the present work, the poly (vinylidene fluoride) composite filled with the lead zirconium titanate (PVDF/PZT) was numerically investigated focusing on the improvement of piezoelectric performance parameters. With a multi-scale simulation strategy, effects of the PZT fillers’ orientation and length on the electrical outputs of the piezoelectric energy collectors buried in the roads were systematically examined. Specifically, at the micro-scale, based on our previous research results, Comsol Multiphysics connected with Matlab was utilized to create the unit cell of piezoelectric composites. The simulation results showed that parameters of PZT nano-fillers greatly affect the piezoelectric coefficients. For the macro-scale simulation, a road energy collector with innovative symmetrical cantilever structure was designed, with piezoelectric constants obtained at micro-scale simulation as inputs. The correlation between the output voltage of the energy-collector and PZT parameters (i.e., orientation and length) was successfully developed by applying the vehicle’s axle-load. This work provides a way for tailoring the piezoelectric performance of the macro components (i.e., sensors) through adjusting the states of the fillers inside the piezoelectric composites.

Multi-scale simulation study on the hygrothermal behavior of closed-cell thermal insulation

Energy ◽  
2020 ◽  
Vol 196 ◽  
pp. 117142
Author(s):  
Shanshan Cai ◽  
Haijin Guo ◽  
Boxiong Zhang ◽  
Guowen Xu ◽  
Kun Li ◽  
...  
Keyword(s):  
Thermal Insulation ◽  
Simulation Study ◽  
Multi Scale ◽  
Hygrothermal Behavior ◽  
Closed Cell

A multi-scale modeling and simulation study to investigate the effect of roughness of a surface on its self-cleaning performance

2020 ◽  
Vol 5 (7) ◽  
pp. 1277-1289 ◽  
Author(s):  
Sushanta K. Sethi ◽  
Manjinder Singh ◽  
Gaurav Manik
Keyword(s):  
Surface Roughness ◽  
Modeling And Simulation ◽  
Simulation Study ◽  
Multi Scale ◽  
Cleaning Performance ◽  
Scale Modeling ◽  
Multi Scale Modeling ◽  
Self Cleaning

The importance of surface roughness on wettability is vital in developing novel techniques and materials for fabrication of self-cleaning coatings.

Multi-scale simulation study for growth dynamics of irreversible islands during submonolayer epitaxy

2003 ◽  
Vol 9 (2) ◽  
pp. 121-127 ◽  
Author(s):  
Pil -Ryung Clia ◽  
Ki -Ha Hong ◽  
Jong -Kyu Yoon
Keyword(s):  
Simulation Study ◽  
Growth Dynamics ◽  
Multi Scale

Lipase adsorption on different nanomaterials: a multi-scale simulation study

2015 ◽  
Vol 17 (2) ◽  
pp. 840-850 ◽  
Author(s):  
Daohui Zhao ◽  
Chunwang Peng ◽  
Jian Zhou
Keyword(s):  
Surface Chemistry ◽  
Simulation Study ◽  
P Adsorption ◽  
Multi Scale ◽  
Lipase Adsorption

Adsorption orientations of lipase on different nanomaterials with different surface chemistry.

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