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Engine test data three dimensional waterfall figure reconstruction method

A technology of test data and waterfall diagrams, which is applied in the field of aviation and aerospace experiments, and can solve the problems of poor discrimination, aliasing of monochrome three-dimensional waterfall diagram spectrum data display, and blurred display effects, etc.

Active Publication Date: 2017-03-15
XIAN AEROSPACE PROPULSION TESTING TECHN INST
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Problems solved by technology

[0007] In order to solve the problems in the background technology, the present invention provides a method for reconstructing three-dimensional waterfall diagrams of engine test data, which solves the display aliasing and aliasing of the monochromatic three-dimensional waterfall diagram spectrum data automatically generated by the Desktop-Advanced software of the current LMS Test.Lab Rev. Defects of fuzzy effect and poor discrimination

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  • Engine test data three dimensional waterfall figure reconstruction method
  • Engine test data three dimensional waterfall figure reconstruction method
  • Engine test data three dimensional waterfall figure reconstruction method

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Embodiment Construction

[0033] The present invention will be described in further detail below.

[0034] The invention not only solves the disadvantage that the LMS Test.Lab Rev software can only modify the viewing angle parameters in the property dialog box, which is inconvenient for users to view data flexibly, but also solves the problem of data display aliasing, blurred display effect, and discrimination of monochromatic three-dimensional waterfall diagrams. In order to obtain a better user experience and ensure the high efficiency of the three-dimensional waterfall diagram data display in the field of vibration and noise measurement sex, reliability.

[0035] The system of the present invention is developed based on the existing LMS Test.Lab Rev software, Figure 10 It is an algorithm flow chart for reconstruction of a three-dimensional waterfall diagram, wherein details of the reconstruction of a three-dimensional waterfall diagram are described in detail, and the main method steps include:

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Abstract

The invention belongs to the aviation and spaceflight test technical field, and specifically relates to an engine test data three dimensional waterfall figure reconstruction method comprising the following main steps: 1, exporting a txt format file from an original three dimensional waterfall figure of LMS Test. Lab Rev Desktop-Advanced software; 2, reading amplitude column data from frequency spectrum data in the txt format file; 3, storing the frequency spectrum data as a two-dimensional array; 4, rebuilding a three dimensional waterfall figure. A single color three dimensional waterfall figure automatically formed by existing LMS Test. Lab Rev Desktop-Advanced software is aliasing in frequency spectrum data display, vague in display effect, and weak in discrimination degrees; the engine test data three dimensional waterfall figure reconstruction method can solve said problems.

Description

technical field [0001] The invention belongs to the technical field of aviation and aerospace tests, and in particular relates to a three-dimensional waterfall diagram reconstruction method for engine test data. Background technique [0002] The analysis of three-dimensional vibration spectrum data after the rocket engine test is a necessary means for engine performance evaluation and fault diagnosis, and the three-dimensional three-dimensional waterfall diagram with time, frequency and amplitude as coordinates is a common spectrum analysis diagram. [0003] The current method of displaying the three-dimensional waterfall diagram in the LMS Test.Lab Rev software is as follows: 1. Start the Desktop-Advanced software of LMSTest.Lab Rev, and make a three-dimensional waterfall diagram for the collected data. 2. Manually drag any one of the N parameters (N>0) in the Name column under the Navigator view to the 1×1 3D waterfall display window, and the data is drawn in the 1×1 3D...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/904
Inventor 高林乔江晖刘英元朱丹波赵政社左明聪赵建军陈海峰宋涛朱成亮刘军赵纳王军红李恒李峰黄立还
Owner XIAN AEROSPACE PROPULSION TESTING TECHN INST