Universal load platform for ground microgravity simulation experiments based on magnetic liquid hybrid levitation

Abstract

The invention discloses a general loading platform for a ground microgravity simulation experiment based on magnetic-fluid mixing suspension. The platform comprises a vertical framework and a horizontal framework, wherein a first rotary shaft and a second rotary shaft are arranged on two sides of the vertical framework correspondingly; a third rotary shaft and a fourth rotary shaft are installed on the other set of opposite sides of the horizontal framework; a first ejector rod and a second ejector rod are installed on the inner side of the third rotary shaft and the inner side of the fourth rotary shaft correspondingly; a first chuck and a second chuck are installed at the tail end of the first ejector rod and the tail end of the second ejector rod correspondingly; and a loading model is clamped between the first chuck and the second chuck. The general loading platform can be used for fixing loading models of any size and shape, and the loading model installed on the general loading platform can conduct angular motion of three degrees of freedom. Residual gravity balancing force is applied through the platform, the angular motion of the platform is not affected, and the effect that the residual gravity balancing force always passes through the center of mass of the loading model can be ensured.

Description

【Technical field】 [0001] The invention belongs to the technical field of ground microgravity effect simulation and its experiment, and in particular relates to a general load platform for ground microgravity simulation experiments based on magnetic fluid mixed suspension. 【Background technique】 [0002] In the process of future space operation and technology development, many new theories and technologies are involved, and experimental verification must be carried out before application. Ground experiments are an important part of the verification of the above technologies and theories. The experimental system must have long-term, large space, and motion An accurate microgravity simulation environment with the same degrees of freedom as space. Traditional ground microgravity experimental facilities have their own shortcomings and cannot fully meet the above requirements. For example, the microgravity time of the weightless aircraft and the microgravity drop tower is too sho...

AI Technical Summary

Problems solved by technology

However, the neutral buoyancy method has the following disadvantages: 1) The neutral buoyancy trimming process is complex, the trimming period is long and the accuracy is not high; 2) During the load movement, hydrodynamic and water wave interference will be formed, which will affect the movement and operation control effect. Experimental fidelity is not high

However, simply designing and manufacturing the attitude decoupling connection platform according to the structural design of the gyroscope still cannot meet the requirements. First, the gyroscope only needs one operation of installing the gyroscope on the frame and does not need to disassemble the gyroscope, so the gyroscope frame is used To carry the load model, the installation preparation before the experiment is inconvenient; second, after the assembly is completed, it is necessary to ensure that the electromagnetic force of the permanent magnet can pass through the center of mass of the load model, and the gyroscope frame does not have a platform for measurement, adjustment, and fixing; third, if The size of the load model becomes large, and the inner and outer frames may be too small to be used

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