The finite element analysis of high-frequency vibrations of quartz crystal resonator strcuctures

2011 ◽  
Author(s):  
Ji-liang Li ◽  
Ze-zhong Jin ◽  
Ji Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
High Frequency ◽  
Quartz Crystal ◽  
Quartz Crystal Resonator ◽  
Element Analysis ◽  
Crystal Resonator ◽  
The Finite Element Analysis ◽  
High Frequency Vibrations

Research on Mono-Base Multi-Electrode Quartz Crystal Resonator Dimension Structure and Simulation Analysis by ANSYS

2011 ◽  
Vol 382 ◽  
pp. 145-148
Author(s):  
Hong Yun Zhou ◽  
Wen Jie Tian ◽  
You Bin Sun ◽  
Guang Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Quartz Crystal ◽  
Simulation Analysis ◽  
Azimuth Angle ◽  
Electrode Structure ◽  
Quartz Crystal Resonator ◽  
Element Analysis ◽  
Crystal Resonator

By energy trap theory and normalized criterion, this paper theoretical analyzed the mono-base multi-electrode quartz crystal resonator dimension structure，and used ANSYS finite element analysis to simulate the stress distribution in the crystal when quartz crystal resonator exerted with different position of radial arc force. Theory and simulation get the optimal electrode structure and the best azimuth angle to add force, provide reference to design new mono-base multi-electrode quartz crystal resonator.

High-frequency random vibrations of a stiffened plate with a cutout using energy finite element and experimental methods

2020 ◽  
Vol 234 (16) ◽  
pp. 3297-3317
Author(s):  
A Nokhbatolfoghahai ◽  
HM Navazi ◽  
H Haddadpour
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
High Frequency ◽  
Experimental Methods ◽  
Stiffened Plate ◽  
Random Vibrations ◽  
Element Analysis ◽  
High Frequency Vibrations ◽  
Energy Finite Element Analysis ◽  
Vibration Tests

In this paper, by employing the energy finite element analysis, the high-frequency vibrations of a stiffened plate having a cutout, subjected to random vibrations, have been analyzed, and the obtained results have been validated by use of experimental methods. By using equations for joining of structures, energy finite element analysis computer codes were developed for the coupling of beam-plate elements. Finally, a plate containing a cutout and three stiffeners was fabricated and subjected to high-frequency random vibration tests. The results of the prepared codes were compared with the results of experiments. These comparisons indicated that at high frequencies, the energy finite element analysis can be used as an effective tool in the analysis of high-frequency vibrations.

The Finite Element Analysis of Overall Stability of High-Frequency Welded H-Section Steel Beam

2013 ◽  
Vol 671-674 ◽  
pp. 810-814
Author(s):  
Wei Liu ◽  
Jun Ping Wang ◽  
Yi Sheng Li ◽  
Jian Ming Shen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
High Frequency ◽  
Load Condition ◽  
Steel Beam ◽  
Pure Bending ◽  
Element Analysis ◽  
Bending Load ◽  
The Finite Element Analysis ◽  
Overall Stability

The width-thickness ratio of high-frequency welded H-section steel beam overruns the limit of the current specification, which is bound to affect the overall stability of the structure. Based on the finite element analysis, in the working conditions of being under the pure bending and crosswise distribution load, the overall stability factors of high-frequency welded H-section steel beams were studied, and several factors with some different sections were listed, which could give some advices for the engineering designers. The results show that, the overall stability factors calculated by using the formula of code and the finite element method are very close, but the former is slightly higher than the latter. The overall stability factors could be directly calculated by using the formula of code which in the crosswise distribution load-condition, but the value should be timed reduction coefficient which is less than 1 in pure bending load-condition.

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