A high-precision engineering realization method of spherical airbag with position marker

Abstract

The invention discloses a high-precision engineering realization method of a spherical airbag with a position marker. A processor is used to establish a spherical model, and the sphere of the spherical model is taken as the origin, and a Cartesian right-hand coordinate system and a Cartesian right-hand coordinate system and a Cartesian right-hand coordinate system are respectively established on the spherical model. Spherical coordinate system; establish the feature point model of the marker on the spherical surface; divide the spherical model into multiple capsule flaps with the same characteristics, find the capsule flap with characteristic points, establish the capsule flap coordinate system on these capsule flaps, and obtain The longitude opening angle of the feature point relative to the central ridgeline of the capsule valve and the opening angle of the feature point relative to the XOY plane of the capsule valve coordinate axis are used to calculate the longitude opening angle and the opening angle of the feature point relative to the XOY plane of the capsule valve coordinate axis through Gaussian simulation. The coordinate value of the feature point affine to the capsular flap plane and capsular flap boundary curve were calculated using the radiative transformation formula; the spherical balloon with position marker was produced by using the coordinate value of the capsular flap coordinate system of the feature point and the capsular flap boundary curve.

Description

technical field [0001] The invention relates to a method for realizing spherical airbag engineering. More specifically, it relates to a high-precision engineering realization method of a spherical airbag with a position marker. Background technique [0002] Spherical airbags and their derivatives are widely used in scientific research fields such as aerospace because of their simple system, low cost and high quality. Aerospace field: In the 1960s, the American Echo series balloon satellites were the originator of communication satellites. In the 1980s, the practice of No. 2 B passive radar calibration balloon satellites of the Second Academy of Aerospace Engineering created a precedent for the application research of balloon satellites in my country. The "Kaiqi-1" and "Kaiqi-2" balloon satellites are used for atmospheric density inversion and detection, and the BP-1B balloon satellite of BIT in 2019 is designed to carry out solar sailing technology verification and radio com...

AI Technical Summary

Problems solved by technology

[0004] 1) The method of using 3D modeling software has a large workload and difficult modeling when there are a large number of position markers;

[0005] 2) The method of using instruments for positioning or casting special molds is expensive, and it is difficult to meet the positioning requirements of large and different-scale spherical airbags, and the versatility is poor

And due to the easy shrinkage and expansion of the spherical airbag, the system error is relatively large during positioning

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