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Bell-shaped vibrator angular rate gyro model building method

An angular rate gyro, bell-shaped oscillator technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of long development cycle, shortened bell-shaped oscillator design cycle, and high research and development costs, avoiding direct solutions. , Improve the ability and accuracy of verification analysis, and simplify the effect of the analysis process

Active Publication Date: 2013-12-11
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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Problems solved by technology

[0004] The object of the present invention is to propose a model establishment of a bell-shaped vibrator angular-rate gyro vibrator in order to overcome the disadvantages of high R&D cost and long development cycle of the bell-shaped vibrator angular rate gyro vibrator designed by empirical judgment and parameter trial and error method method, this method gives the resonant frequency vibration method and dynamic model of the bell-shaped vibrator, analyzes the vibration process of the bell-shaped vibrator, and helps researchers to be familiar with the vibration mechanism of the bell-shaped vibrator, thereby shortening the design cycle of the bell-shaped vibrator , which saves the development time of the whole bell oscillator type angular rate gyroscope

Method used

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  • Bell-shaped vibrator angular rate gyro model building method

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Embodiment Construction

[0021] The principle of the bell-shaped oscillator type angular rate gyro is to use the precession of the mode shape angle caused by the rotation of the resonant bell-shaped oscillator to determine the rotation angle of the gyro base around the inertial space. In order to enable the bell-shaped oscillator to generate circular wavenumbers n=2 The ideal mode shape of the bell-shaped oscillator must be accurately controlled, and this frequency is the natural frequency of the bell-shaped oscillator under this mode shape. Therefore, we must reasonably design the structure of the bell-shaped oscillator so that The obtained bell-shaped vibrator can produce the ideal mode shape and vibrate according to the required vibration mode.

[0022] The flow process of the bell-shaped vibrator type angular rate gyroscope model establishment method provided by the present invention is as follows: figure 1 As shown, the details are as follows:

[0023] Step 1, using the simplified elastic thin...

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Abstract

The invention relates to a bell-shaped vibrator angular rate gyro model building method, which comprises the following steps of: (1) simplifying a bell-shaped vibrator by utilizing a simplified elastic plate bending vibration theory; (2) solving a cylindrical surface part of the bell-shaped vibrator; (3) solving a semi-spherical part of the bell-shaped vibrator; (4) solving a vibration mode of a bottom edge part of the bell-shaped vibrator; and (5) merging the steps (2) (3) and (4) to obtain a frequency calculation formula and a kinetic equation of the bell-shaped vibrator. The invention adopts the simplified elastic plate bending vibration theory to analyze, the calculation process is simplified, and the design cycle of the bell-shaped vibrator is greatly shortened, so that the time for developing the whole bell-shaped vibrator angular rate gyro is shortened, and a basis is provided for reasonable design of the bell-shaped vibrator angular rate gyro.

Description

technical field [0001] The invention belongs to the technical field of angular rate gyroscopes, in particular to a bell-shaped vibrator Mode Method for establishing oscillator model of angular rate gyroscope. Background technique [0002] As an inertial device that is sensitive to the angular motion of the carrier, the gyroscope is the core component of inertial navigation and guidance. The vibration gyroscope based on the principle of Coriolis force has all the inertial qualities, and its status in the field of inertial technology is becoming more and more important. It has been widely concerned as a new generation of inertial instruments. Driven by the development of science and technology and market demand, various vibrating gyroscopes have emerged one after another. [0003] The patent number is: ZL201010215745.1, and the name of the invention is: the patent application of bell-shaped oscillator type angular rate gyro provides a bell-shaped oscillator type angular rate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 刘宁付梦印邓志红李擎苏中刘洪
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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