Precise Positioning Method of Loading Canvas Tape for Large Curvature Radome Static Test
A static test and precise positioning technology, applied in the field of test mechanics, can solve problems such as inappropriateness, low accuracy of marking angle and direction, inconvenient positioning and marking, etc., to achieve easy operation, reduce static test costs, low cost effect
Active Publication Date: 2018-08-31
THE RES INST FOR SPECIAL STRUCTURES OF AERONAUTICAL COMPOSITE AVIC
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Problems solved by technology
The former positioning method is easy to operate, but for large-curvature radome, it is obviously inappropriate to use manual measurement method, and there are problems such as low accuracy of marking angle and direction; although the latter can accurately find the angle between the test loading point and the canvas tape sticking position. point, but multi-point positioning is required to display the sideline, and then manually connect multiple infrared coordinate points to draw the canvas tape to paste the sideline, which brings inconvenience to positioning and marking
Method used
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Embodiment Construction
[0017] The method for precise positioning of the loading canvas belt in the static test of the large-curvature radome includes the following steps:
[0018] Step 1. According to the static test loading point and the distribution rule of the static test canvas tape 2, mark the pasting position of the loading canvas tape 2 on the three-dimensional graphics of the radome 1;
[0019] Step 2, using CATIA or Fibersim three-dimensional design software to expand the three-dimensional graphics of the radar dome marked with the pasting position of the canvas tape 2 into a plane graphic;
[0020] Step 3, processing the unfolded plane figure marked with the pasting position of the canvas tape 2 into printing paper;
[0021] Step 4, using printing paper to print the pasting edge of the canvas tape 2 on the radome test piece;
[0022] Step 5: Paste the canvas tape 2 according to the canvas tape pasting edge printed on the radome test piece.
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The invention relates to a method of precisely positioning a loaded canvas belt in the case of a large curvature radome static test, so as to solve the problems that the loaded canvas belt is hard to position and the positioning precision is not high in the case of the large curvature radome static test. Thus, the pasting position of the canvas belt can be precisely and conveniently positioned when the large curvature radome static test is executed, the test load applied to the canvas belt is more real, and the static strength of the large curvature radome can be verified more precisely.
Description
technical field [0001] The invention relates to the field of test mechanics, in particular to a method for accurately positioning a loaded canvas belt in a static test of a large-curvature radome. Background technique [0002] Passing the static test of the radome is the prerequisite for the safe flight of the radome and the realization of various functional performances. [0003] Static test technology involves test design, test implementation and test control. After the static test design of a radome is completed, the test load needs to be loaded according to the test design. At this stage, the test load mainly uses canvas belts, tension and pressure pads and wooden blocks. When the test is carried out, it is necessary to position the loading accessories (canvas belt, tension and pressure pads, and wooden blocks). Whether the attachment position of the loading accessories is accurate and direct It is related to whether the loading of the whole test load is accurate, and i...
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IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 曲秀晓李昌林
Owner THE RES INST FOR SPECIAL STRUCTURES OF AERONAUTICAL COMPOSITE AVIC