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Processing method of solid engine drop impact test based on time domain impact area

A solid motor and impact test technology, which is applied in the field of data processing of solid motor drop impact test based on time-domain impact area, can solve problems such as poor repeatability of manual processing, and achieve the effect of convenient comparison and improved efficiency.

Active Publication Date: 2020-07-03
XIAN AEROSPACE PROPULSION TESTING TECH RES INST
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Problems solved by technology

Among them, the pulse width processing adopts the principle of the least square method, which realizes the automation and standardization of half-sine wave pulse width data processing, and solves the problem of poor repeatability of manual processing.

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  • Processing method of solid engine drop impact test based on time domain impact area

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Embodiment Construction

[0032] Embodiments of the present invention are described in detail below, and the embodiments are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0033] The present invention utilizes the structural characteristics of the data acquisition of the drop impact test system, proposes a data processing method for the solid engine drop impact test based on the time domain impact area, and uses the matlab language to compile a set of data processing programs according to the method, The analysis and processing of impact test data can be realized, and the report can be generated automatically.

[0034] The present invention utilizes a cycle algorithm to realize the batch labeling of the peak value and pulse width of the multi-channel drop impact test control channel and the response acquisition channel, automatically outputs the labeling curve, and provides statistical results in the form of a table. Among them,...

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Abstract

The invention provides a solid motor drop impact test data processing method based on a time domain impact area. A cyclic algorithm is used, batch marking on peak values and pulse widths of control channels and response acquisition channels of a multi-channel drop impact test is realized, a marking curve is automatically outputted and a statistical result is given in a table form. A least square method principle is adopted for pulse width processing, automation and standardization of half sine wave pulse width data processing are realized, and the problem of poor manual processing repeatability is solved. Curve processing is carried out with the time domain impact area as a feature, the indexes for comparison between impact magnitudes of the solid motor drop impact test under different half sine wave impacts are increased, and a new basis is provided for evaluating the severity of the impact test.

Description

technical field [0001] The invention relates to the technical field of drop impact tests for large solid engines, in particular to a data processing method for drop impact tests of solid engines based on time-domain impact areas. Background technique [0002] The missile will experience a series of shock events during its use, mainly including launch shock, launcher slide, folding wing deployment, engine ignition, engine shutdown, and stage separation. The large-scale drop impact table can simulate the non-repetitive impact test of the missile and its accessory engine, which is of great significance for the impact performance assessment of large-mass test pieces. [0003] The block diagram of the solid engine drop impact test system is as follows: figure 1 shown. The basic principle is to realize the simulation of half-sine wave shocks of different magnitudes by selecting the height of the drop, the material and thickness of the cushion. The acquisition system of the impa...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/08G06F30/20
CPCG01M7/08G06F30/20
Inventor 贺向清白西刚王林李强田振宇翟晓田晓娟姜文英张宗强
Owner XIAN AEROSPACE PROPULSION TESTING TECH RES INST
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