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Parameter selecting and matching method for shock absorber of inertial measurement unit

A shock absorber and component technology, applied in instruments, measuring devices, etc., can solve the problems of cumbersome process and slow generation process, and achieve the effect of flexible selection and clear method and process

Pending Publication Date: 2022-04-15
BEIJING AEROSPACE ERA LASER NAVIGATION TECH CO LTD
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Problems solved by technology

[0005] The technical problem solved by the present invention is: in view of the traditional shock absorber selection method in the current prior art, the process of calibration and vibration test is carried out through the whole product, which is prone to problems such as cumbersome process and slow production process. Group shock absorber parameter selection method

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  • Parameter selecting and matching method for shock absorber of inertial measurement unit
  • Parameter selecting and matching method for shock absorber of inertial measurement unit
  • Parameter selecting and matching method for shock absorber of inertial measurement unit

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Embodiment Construction

[0031] A parameter selection method for inertial group shock absorbers, aimed at such as figure 1 The selection process of the existing shock absorber shown is improved, and the performance parameters of a single shock absorber can be matched to make the shock absorber system meet the requirements of use. The installation method of the shock absorber for the current inertial sensitive parts of the laser inertial group is roughly divided into For four-point or eight-point symmetrical arrangement on two opposite mounting surfaces of components, it is necessary to match the height dimension of the shock absorber, confirm the deformation amount, and calculate the stiffness, such as image 3 As shown, the specific process is as follows:

[0032] (1) Conduct visual inspection of the shock absorber, and select shock absorber products that meet the surface defect-free and size requirements;

[0033] (2) Install the selected shock absorber on the special tooling, such as figure 2 As...

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Abstract

A shock absorber matching method of an inertial navigation assembly can enable a shock absorption system to meet use requirements through performance parameter matching of a single shock absorber, provides a specific height difference measurement method for an installation mode of a current shock absorber, and meanwhile determines a static deformation amount and static rigidity determination method. On the basis of the current method, a shock absorber size matching height size requirement range and a shock absorber rigidity matching requirement range can be provided, the method is not limited to an eight-point installation matching mode, and the method is clear in process and flexible in selection and matching.

Description

technical field [0001] The invention relates to a method for selecting parameters of an inertial group shock absorber, which belongs to the field of design and matching of laser inertial navigation components. Background technique [0002] The laser inertial navigation component is one of the main equipment of the control system. Its main working principle is to use the laser gyroscope and quartz accelerometer as inertial sensitive components to measure the carrier's speed, attitude and other information in real time, providing a basis for the control system to perform navigation calculations. The strapdown inertial navigation system has the characteristics of simple structure, long working life, strong adaptability to mechanical environment, and higher reliability. The laser gyroscope and the laser strapdown inertial navigation system composed of it represent the development direction of the future high-precision and high-reliability inertial measurement device, and have be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00G01D21/02
Inventor 郭恺李志华李世杰黄世涛
Owner BEIJING AEROSPACE ERA LASER NAVIGATION TECH CO LTD
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