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Fire work impact data preprocessing method and system

A data preprocessing, pyrotechnic impact technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of inaccurate prediction of impact mechanics environment, and achieve improved accuracy and authenticity, weight reduction, The effect of a strong engineering background

Active Publication Date: 2015-07-15
TSINGHUA UNIV
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  • Description
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AI Technical Summary

Problems solved by technology

[0004] In the traditional impact test method, the measured impact data is directly used. This open-loop test method has caused inaccurate predictions of the impact mechanical environment from the source.

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  • Fire work impact data preprocessing method and system
  • Fire work impact data preprocessing method and system
  • Fire work impact data preprocessing method and system

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Embodiment Construction

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the pointed device or element It must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or impli...

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Abstract

The invention discloses a fire work impact data preprocessing method which comprises the following steps: S1, acquiring a discrete acceleration signal; S2, judging whether the discrete acceleration signal is effective, deciding the discrete acceleration signal is available if yes, or executing the step S3; S3, correcting the discrete acceleration signal and acquiring a corrected discrete acceleration signal; S4, further judging whether the corrected discrete acceleration signal is effective, deciding the corrected discrete acceleration signal is available if yes, or abandoning the discrete acceleration signal. According to the method disclosed by the invention, correctness and truth of the fire work impact signal can be improved; the method has strong engineering background and has great referential significance for reducing the weight of an aircraft and making a buffer design and impact acceptance test standard. The invention also discloses a fire work impact data preprocessing system.

Description

Technical field [0001] The invention relates to the technical field of pyrotechnic shock signal processing, in particular to a pyrotechnic shock data preprocessing method and system. Background technique [0002] In order to complete the separation of the stars and arrows, the separation of the combined body, and the deployment of accessories, most spacecraft use pyrotechnic device separation devices. The pyrotechnic impact on nearby equipment when these pyrotechnics detonate is a severe local mechanical transient response, showing high frequency, transient and high-level characteristics. Pyrotechnic shock can cause the failure of electronic equipment and micro-mechanisms that are sensitive to high-frequency response in the spacecraft, which can lead to aerospace failures and accidents. [0003] The special mechanical environment of pyrotechnic shock makes the sensor and acquisition system very high when detecting the shock signal. There are great difficulties and certain randomne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 王锡雄秦朝烨褚福磊
Owner TSINGHUA UNIV
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