A fully automatic moment of inertia measurement system

Abstract

The invention discloses a full-automatic rotational inertia measuring system and relates to the technical field of rotational inertia measuring.The system comprises a base assembly, a table board ejecting assembly, a rotational inertia assembly, a support assembly, a rotation assembly and a table board releasing assembly, wherein the table board ejecting assembly, the rotational inertia assembly, the support assembly, the rotation assembly and the table board releasing assembly are installed on the base assembly.The support assembly is installed on the rotational inertia assembly and can rotate in the horizontal direction.The table board ejecting assembly comprises first air cylinders used for locking the support assembly and an optoelectronic switch used for measuring the swinging period of the support assembly.The table board releasing assembly comprises a second air cylinder used for driving the support assembly to rotate.The rotation assembly is connected with a rotation frame on the support assembly and drives the rotation frame to rotate by 90 degrees.A guided missile to be measured is installed on the rotation frame, the optoelectronic switch measures the swinging period before the rotation assembly where the guided missile is installed rotates by 90 degrees and the swinging period after the rotation assembly where the guided missile is installed rotates by 90 degrees so that the corresponding rotational inertia can be calculated, and using is convenient.

Description

technical field [0001] The invention relates to the technical field of moment of inertia measurement, in particular to a fully automatic moment of inertia measurement system. Background technique [0002] The moment of inertia is a fundamental physical quantity in mechanics, and its value depends on the shape of the object, the mass distribution and the position of the chosen axis of rotation. For a rigid body with simple geometry and uniform mass distribution, its moment of inertia relative to a certain rotation axis can be directly calculated by formula; but for an object with complex shape and uneven mass distribution, it can only be accurately measured through experiments. Moment of inertia. [0003] The moment of inertia is one of the important parameters of the missile, which has an important impact on the initial disturbance, flight stability and hit accuracy of the missile. However, due to the relatively complex shape of the missile and the uneven distribution of th...

AI Technical Summary

Problems solved by technology

For a rigid body with simple geometry and uniform mass distribution, its moment of inertia relative to a certain rotation axis can be directly calculated by formula; but for an object with complex shape and uneven mass distribution, it can only be accurately measured through experiments. Moment of inertia

[0003] The moment of inertia is one of the important parameters of the missile, which has an important impact on the initial disturbance, flight stability and hit accuracy of the missile. However, due to the relatively complex shape of the missile and the uneven distribution of the overall mass, the moment of inertia cannot be directly calculated by the formula. Therefore, a dedicated measurement system must be used to actually and accurately measure the missile's moment of inertia

[0004] When measuring the moment of inertia in the three directions of the missile, the existing moment of inertia measurement platform needs manual clamping and flipping to complete the measurement of the moment of inertia of the missile in the x, y, and z directions, which consumes a lot of time and is inefficient

It will also cause certain damage to the missile body due to several times of clamping

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