Optimized structure design of a bridge-like piezoelectric energy harvester based on finite element analysis

2017 ◽  
Author(s):  
Tianyun Guo ◽  
Zhike Xu ◽  
Long Jin ◽  
Minqiang Hu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Energy Harvester ◽  
Structure Design ◽  
Element Analysis ◽  
Piezoelectric Energy

Finite-Element Analysis of a Varying-Width Bistable Piezoelectric Energy Harvester

2015 ◽  
Vol 3 (12) ◽  
pp. 1243-1249 ◽  
Author(s):  
Tarun Kumar ◽  
Rajeev Kumar ◽  
Vishal S. Chauhan ◽  
Jens Twiefel
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Energy Harvester ◽  
Element Analysis ◽  
Piezoelectric Energy

Novel Trapezoidal-Loop Piezoelectric Energy Harvester

2014 ◽  
Vol 672-674 ◽  
pp. 402-406
Author(s):  
Bing Jiang ◽  
Shuai Yuan ◽  
Xiao Hui Xu ◽  
Mao Sheng Ding ◽  
Ye Yuan ◽  
...  
Keyword(s):  
Output Voltage ◽  
Energy Harvester ◽  
Research Field ◽  
Structure Design ◽  
Loop Structure ◽  
Element Analysis ◽  
Resonant Frequencies ◽  
First Order ◽  
Microelectronic Devices ◽  
Piezoelectric Energy

In recent years, piezoelectric energy harvester which can replace the traditional battery supply has become a hot topic in global research field of microelectronic devices. Characteristics of a trapezoidal-loop piezoelectric energy harvester (TLPEH) were analyzed through finite-element analysis. The output voltage density is 4.251V/cm2 when 0.1N force is applied to the free end of ten-arm energy harvester. Comparisons of the resonant frequencies and output voltages were made. The first order resonant frequency could reach 15Hz by increasing the number of arms. Meanwhile, the output voltage is improved greatly when excited at first-order resonant frequencies. The trapezoidal-loop structure of TLPEH could enhance frequency response, which means scavenging energy more efficiently in vibration environment. The TLPEH mentioned here might be useful for the future structure design of piezoelectric energy harvester with low resonance frequency.

Bridge structure design and finite element analysis

2021 ◽  
Author(s):  
Xiaolin Zhang ◽  
Tianyi Guan ◽  
Lei Fan ◽  
Na Wang ◽  
Li Shang ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structure Design ◽  
Bridge Structure ◽  
Element Analysis

Risk-Based Stability Assessment of a Gantry Crane

2014 ◽  
Author(s):  
Bin Xu ◽  
Zhongjian Yu ◽  
Yuqing Yang ◽  
Xiaoying Tang ◽  
Tao Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Analytical Method ◽  
Engineering Application ◽  
Structure Design ◽  
Gantry Crane ◽  
Stability Assessment ◽  
Element Analysis ◽  
Risk Elements ◽  
Assessment Approach

Stability of a gantry crane was a challenge in its structure design. A new risk-based stability assessment approach was proposed in this paper. Analytical method was introduced firstly, and then finite element method was adopted to evaluate the stability of square bar. In order to verify the finite element models, results of buckling analysis were compared with the results of analytical method. Secondly, this finite element analysis was applied in stability assessment of a gantry crane, and through parameterized analysis risk elements were identified. Finally, risk-based stability assessment was applied to this gantry crane, and neural network algorithm was adopted to evaluate the risk elements which were defined by finite element analysis. The evaluating results were well consistetent with statistical data, which indicated this risk-based stability assessment approach was reliable which showed a potential in engineering application.

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