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Strong overload environment-oriented lens mounting structure optimal parameter design method

A technology of lens installation and optimal parameters, applied in installation, calculation, electrical and digital data processing, etc., can solve problems such as large amount of calculation, and achieve the effect of small amount of calculation and high reliability

Active Publication Date: 2019-06-07
NANJING UNIV OF SCI & TECH
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for optimal parameter design of the lens installation structure in a strong overload environment, which solves the problem of large amount of calculation caused by the traditional structural parameter optimization method - the exhaustive method

Method used

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  • Strong overload environment-oriented lens mounting structure optimal parameter design method
  • Strong overload environment-oriented lens mounting structure optimal parameter design method
  • Strong overload environment-oriented lens mounting structure optimal parameter design method

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Embodiment

[0046] Such as figure 1 As shown, a method for optimal parameter design of lens installation structure under strong overload environment, including the following steps:

[0047] Step 1. Determine the corresponding test index according to the structural design requirements of the optical-mechanical system and the principle of minimum deformation and stress in the strong overload environment; in this embodiment, the determined simulation test index is 10000g gravitational acceleration overload, 10ms impact duration Deformation and stress peak value of optical lens in time.

[0048] Step 2. Select the lens installation structure parameters as the test factors, and determine the number of levels of each factor according to the value range of the factors. The specific implementation method is: the lens material, gasket thickness and The three most important optimization parameters of the pre-tightening force are used as the experimental factors, in which the level number of the op...

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Abstract

The invention provides a strong overload environment-oriented lens mounting structure optimal parameter design method. The method includes the following steps that: corresponding test indexes are determined according to the structural design requirements of an optical machine system and a deformation and stress minimization principle; lens mounting structural parameters are selected as test factors, the number of the levels of each of the factors is determined; an orthogonal table is selected, orthogonal test table header design is carried out, lens deformation and stress dynamics calculationunder a strong overload environment is performed; a range analysis method is adopted to perform statistic analysis on lens deformation and stress peak values, and an optimal level combination under asingle test index is determined; and a comprehensive balance method is used to analyze orthogonal test range analysis results under the single test index, so that an optimal level combination and thesequence of the primary and secondary test factors of the test factors under a plurality of test indicators are obtained. The method of the invention has the advantages of simple principle, high reliability, simple design and small calculation amount, and has great guiding significance for research on the anti-overload performance of the optical machine system.

Description

technical field [0001] The invention relates to a design technology of an optical lens installation structure, in particular to a method for designing optimal parameters of a lens installation structure under a strong overload environment. Background technique [0002] With the promotion of the application field of photoelectric detection technology, it is gradually applied to the strong overload environment to detect the target, which puts forward new requirements for the design of the optical-mechanical structure in the structure of the photoelectric detection system. In order to ensure that the optical-mechanical system can withstand strong acceleration overload and accurately complete the functions of target recognition and detection in harsh mechanical environments, the optical-mechanical system needs to have excellent strength, stiffness and stability. The anti-overload performance of the computer system in a strong overload environment is very important. Because in a...

Claims

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Application Information

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IPC IPC(8): G02B27/00G02B7/02G06F17/50
Inventor 李振华花晓彬来建成王春勇严伟纪运景
Owner NANJING UNIV OF SCI & TECH
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