Measuring Device for Mass Center of Irregular Shape Missile

Abstract

The invention relates to the technical field of measurement and control, and specifically discloses a mass centroid measuring device for a missile with an irregular shape. The measuring device adopts the inclined platform measurement method, adjust the electric push rod under the load-bearing platform, so that the platform is in two states of horizontal and inclined, and measure the pressure of each fulcrum in these two states through the load cell, through the force balance principle and moment The balance principle can calculate the mass and center of mass position of the projectile under test. The measuring device includes a lifting support unit, a sensor unit, a fixture unit and a joint measuring arm unit, wherein the fixture unit can replace the corresponding fixture and snap ring according to the clamping requirements of various cross-sectional shapes of the projectile under test, and the joint measuring arm unit is used for The position and attitude measurement and system coordinate system calibration of the projectile under test after clamping. Compared with the existing measuring equipment, the present invention has strong bearing capacity and high reliability, and can meet the mass centroid measurement requirements of non-circular special-shaped cross-section, large wingspan and other irregular-shaped missiles.

Description

technical field [0001] The invention belongs to the technical field of measurement and control, and in particular relates to a mass centroid measuring device of an irregular shape missile. Background technique [0002] Missile is an important cutting-edge weapon of modern military. Its mass and center of mass position are two important design parameters, which affect the guidance and flight attitude control of missile. Due to the complex internal structure and uneven mass distribution of the missile, it is difficult to accurately determine its mass and center of mass position through theoretical calculation, which cannot meet the requirements of missile guidance and flight control. Therefore, the actual mass and center of mass position of the missile must be measured. [0003] The existing missile center of mass measurement equipment mostly adopts the multi-point support rotation method, such as figure 1 As shown, the measurement sample 48 is installed and positioned on the...

AI Technical Summary

Problems solved by technology

Due to the need to rotate the projectile during the measurement process, limited by factors such as shape structure, space size, and structural strength, this type of equipment can only deal with small-sized circular cross-section projectiles, and cannot meet the requirements of non-circular special-shaped cross-sections and large wingspans. Therefore, a set of mass centroid measurement devices that can cope with missiles with various cross-sectional shapes and large wingspan structures needs to be developed urgently

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