Reasonable structural parameter combination can improve natural frequency of shell structure of acceleration sensor

ensure output signal stable in vibration environments.Through building mechanical model for vertical plate to determine structural factors which impact natural frequency of acceleration sensor shell.Based on idea of response surface method

use design of experiment（DOE） methods

use natural frequency of acceleration sensor shell as an index and use each structural parameter as factor to design the quadratic regression orthogonal rotation combination experiment.Structural parameters of each group of test combined analysis model is set up by using ABAQUS 6.10 software and extract natural frequency

finally determine structural parameter combinations interval which makes natural frequency maintain at a higher level.Through confirmatory test on optimized parameters

the results show that natural frequency of acceleration sensor shell after optimizing interval of random structural parameter combinations can reach above 10 kHz.