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Hemispherical harmonic oscillator structure parameter optimization method based on energy loss mechanism analysis

A technology of hemispherical resonator and structural parameters, applied in design optimization/simulation, electrical digital data processing, computer-aided design, etc., can solve the problem of incapable of optimizing the structural parameters of hemispherical resonator, shorten the design cycle, increase the working time and The effect of stability and improving efficiency

Pending Publication Date: 2022-02-08
HARBIN INST OF TECH
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Problems solved by technology

[0004] In view of the above problems, the present invention proposes a hemispherical harmonic oscillator structure parameter optimization method based on energy loss mechanism analysis to solve the problem that the prior art cannot optimize the hemispherical harmonic oscillator structural parameters to reduce energy loss and improve the quality factor

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  • Hemispherical harmonic oscillator structure parameter optimization method based on energy loss mechanism analysis
  • Hemispherical harmonic oscillator structure parameter optimization method based on energy loss mechanism analysis
  • Hemispherical harmonic oscillator structure parameter optimization method based on energy loss mechanism analysis

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Embodiment Construction

[0036] In order to enable those skilled in the art to better understand the solutions of the present invention, exemplary implementations or embodiments of the present invention will be described below in conjunction with the accompanying drawings. Apparently, the described embodiments or examples are only part of the embodiments or embodiments of the present invention, not all of them. Based on the implementation modes or examples in the present invention, all other implementation modes or examples obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Limited to the structure and working principle of the hemispherical resonant gyro, usually, the radius of the hemispherical shell is 20-40mm, the thickness of the hemispherical shell is 0.6-1.2mm, the diameter of the support rod is 5-10mm, the length of the external support rod is 3-8mm, and the length of the internal support rod It is ...

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Abstract

The invention discloses a hemispherical harmonic oscillator structure parameter optimization method based on energy loss mechanism analysis, relates to the technical field of hemispherical harmonic oscillator structure parameter optimization, and aims to solve the problem that the hemispherical harmonic oscillator structure parameters cannot be optimized to improve the quality factor in the prior art. The technical key points of the invention are as follows: defining the quality factor of the hemispherical harmonic oscillator from the angle of energy, wherein the damping mechanism influencing the quality factor comprises thermoelastic damping and support loss; establishing the relationship between the total quality factor of the ideal hemispherical harmonic oscillator and the thermoelastic damping and support loss; and changing the size of each structure parameter of the hemispherical harmonic oscillator, respectively calculating the corresponding total quality factor, and selecting the size with the highest total quality factor in each structure parameter as the optimal structure parameter size. According to the invention, the efficiency of structure optimization of the hemispherical harmonic oscillator is improved, and the design period of the hemispherical harmonic oscillator is shortened.

Description

technical field [0001] The invention relates to the technical field of structural parameter optimization of a hemispherical harmonic oscillator, in particular to a method for optimizing structural parameters of a hemispherical harmonic oscillator based on energy loss mechanism analysis. Background technique [0002] With the increasing development of modern science and technology, various high-performance gyroscopes are required to ensure accurate navigation and positioning capabilities in many fields such as military affairs, communications, satellites, and detection. As a new type of high-precision gyroscope, the hemispherical resonant gyroscope has a relatively simple structure and unique working principle. It has many advantages such as impact resistance, strong radiation resistance, small size, low energy consumption, high reliability, and long working life. widely used. [0003] One of the biggest advantages of the hemispherical resonant gyroscope is that it can conti...

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Application Information

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IPC IPC(8): G06F30/17G06F30/23G06F111/10G06F119/14G06F119/08G06F119/06G06F119/02
CPCG06F30/17G06F30/23G06F2111/10G06F2119/14G06F2119/08G06F2119/06G06F2119/02
Inventor 刘赫男秦彪陈明君吴春亚程健
Owner HARBIN INST OF TECH
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