Statistical analysis of nature frequencies of hemispherical resonator gyroscope based on probability theory

被引：1
|
作者：
Yu Xudong [1 ]
Long Xingwu [1 ]
Wei Guo [1 ]
Li Geng [1 ]
Qu Tianliang [1 ]
机构：
[1] Natl Univ Def Technol, Coll Optoelect Sci & Engn, Changsha 410073, Hunan, Peoples R China
来源：
SENSORS AND SMART STRUCTURES TECHNOLOGIES FOR CIVIL, MECHANICAL, AND AEROSPACE SYSTEMS 2015 | 2015年 / 9435卷
关键词：
hemispherical resonator gyroscope; random parameter; natural frequency; probability method; finite element method;
D O I：
10.1117/12.2083768
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
A finite element model of the hemispherical resonator gyro (HRG) is established and the natural frequencies and vibration modes are investigated. The matrix perturbation technology in the random finite element method is first introduced to analyze the statistical characteristics of the natural frequencies of HRG. The influences of random material parameters and dimensional parameters on the natural frequencies are quantitatively described based on the probability theory. The statistics expressions of the random parameters are given and the influences of three key parameters on natural frequency are pointed out. These results are important for design and improvement of high accuracy HRG.
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收藏
页数：6
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