Simulation device

Abstract

The invention provides a simulation device. The simulation device comprises an omni-directional mobile platform, a Stewart platform, a connecting rod, a spacecraft model and a driver; the Stewart platform is arranged above the omni-directional mobile platform; the lower end of the connecting rod is fixed above the Stewart platform, and the upper end of the connecting rod is fixedly connected to the driver; the spacecraft model is connected to the driver, the spacecraft model is provided with a rotation shaft passing through the mass center of the spacecraft model and can rotate around the rotation shaft under the action of the driver, and an extension line of the connecting rod passes through the mass center of the spacecraft model and forms a preset angle with the rotation shaft of the spacecraft model; and the Stewart platform and the omni-directional mobile platform are used for driving the connecting rod to move so as to control the rotation shaft of the spacecraft model to do fixed-point movement around the mass center. Through a synergistic effect of the omni-directional mobile platform and the Stewart platform, a motion state of a failed spacecraft in the space environment is effectively simulated, so that the simulation device can meet the maximum working space requirement of the spacecraft model by only needing a small motion space.

Description

technical field [0001] The present disclosure relates to the technical field of aerospace vehicle simulation, in particular to a simulation device. Background technique [0002] With the development of space technology, more and more spacecraft are distributed on the space orbit. At the same time, there are more and more aircraft that have lost power due to reaching the design working life or sudden accidents. These spacecraft are distributed in space orbits, seriously affecting the normal work of other aerospace vehicles, and causing pollution to space. [0003] In order to better deal with these spacecraft, it is necessary to study their motion state, but the cost and risk of directly observing and researching the spacecraft in the process of orbiting are very high, so it is very important to simulate on the ground. necessary. [0004] At present, the Chinese patent application CN110057556A published on July 26, 2019 proposes a device for simulating fixed-point rotation ...

AI Technical Summary

Problems solved by technology

Since the test piece is only in contact with the bearing, restrictions are placed on the weight of the test piece

The device requires that the fixed-point movement process is completely realized through the planning control of the test piece itself, and the entire motion control process is relatively complicated; in addition, before the experiment, the device needs to add counterweights to the test pieces according to the weight of different test pieces, so as to adjust The center of mass of the test piece, so that it can be trimmed to the bearing, increases the experimental preparation time and complicates the experimental process

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