Floating-ball platform liquid-floating ball counterweight method

Abstract

The invention provides a floating-ball platform liquid-floating ball counterweight method to realize that gravity of a ball body in the liquid is equal to buoyancy force and center of mass is overlapped with the centre of ball. The method comprises the following steps: to begin with, carrying out quality counterweight according to a ball structure to enable the gravity of the ball body to be close to the buoyancy force; then, carrying out center-of-mass detection by utilizing an externally-hanging weight under the condition that the ball body floats, and calculating the mass center position and maximum gravity moment of the ball body; and finally, adjusting the balance weight according to the mass center position of the ball body and carrying out calculation to obtain weight needing to be adjusted on each coordinate axis of the ball body to enable the center of mass to be closer to the center of the ball as far as possible and enable the maximum gravity moment of the ball body to be smaller than a preset threshold value. The method can be suitable for different densities of liquid; an external auxiliary device can realize adjustment of the center of gravity of the ball body through only one detection weight, so that the operation is simple; and the method can calculate the mass center position and the maximum eccentric distance quantitatively, thereby facilitating dynamics modeling of the ball body.

Description

technical field [0001] The invention relates to the technical field of center-of-mass measurement, in particular to a liquid-floating ball counterweight method for a floating ball platform. Background technique [0002] The mass distribution of an object determines the motion characteristics of the object, especially the attitude motion of the object. When an object is in a gravitational field, it will be affected by gravity, which can be equivalently acted on its center of mass (center of gravity). If the object is fixed to other stationary carriers, the interaction force between the carrier and the object will be balanced with the gravity of the object, making the object in a static state, but if the object is not fixed to the stationary carrier, then the object will adjust its posture , so that the force and gravity it is subjected to achieve force and moment balance. For example, the hull floating on the sea and the submarine sinking under the sea are both subject to th...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a floating ball platform liquid floating ball counterweight method, which solves the technical problem of reducing the distance between the center of mass and the center of the ball by adjusting the mass distribution of the counterweight in the floating state of the ball in the prior art

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