Mass and mass center measuring device for guided missile in irregular shape

Abstract

The invention relates to the technical field of measurement and control and particularly discloses a mass and mass center measuring device for a guided missile in an irregular shape. According to the measuring device, an inclined platform type measuring method is adopted, and an electric pushing rod below a bearing platform is adjusted, so that the platform is in the horizontal state or in the inclined state, pressure of each fulcrum in each state is measured through a weighing sensor, and the mass and the mass center positions of the measured guided missile can be obtained according to the force balance principle and the force moment balance principle. The measuring device comprises a lifting supporting unit, a sensor unit, a clamp unit and a joint measuring arm unit, wherein the clamp unit can be replaced with corresponding clamps and clamping rings according to clamping requirements of all kinds of section shapes of measured guided missiles; the joint measuring arm unit is used for measuring the position posture after the measured guided missiles are clamped and calibrating a system coordinate system. Compared with an existing measuring device, the measuring device is high in bearing capacity and reliability and can meet the requirements for mass and mass center measurement of the guided missiles in the irregular shape such as a non-circular special-shape section and large wingspan.

Description

Technical field [0001] The invention belongs to the technical field of measurement and control, and specifically relates to a device for measuring the mass center of mass of a missile with an irregular shape. Background technique [0002] As an important cutting-edge weapon in modern military affairs, the quality and the position of the center of mass of the missile are two important design parameters that affect the guidance and flight attitude control of the missile. Due to the complex internal structure of the missile and uneven mass distribution, theoretical calculations are difficult to accurately determine its mass and center of mass position, and 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 mass centroid measurement equipment mostly uses the multi-point support rotation method, such as figure 1 As shown, the measurement sample 48 is in...

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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