High-precision vibration simulation system based on multi-axis multi-degree of freedom

Abstract

The invention discloses a high-precision vibration simulation system based on multi-axis multi-degree of freedom. The high-precision vibration simulation system comprises a mounting base, a shunt-wound multi-degree-of-freedom motion platform and a mechanical changeover panel, wherein the bottom of the mounting base is connected with a mounting connection platform, and the side surface of the mounting base is connected with the shunt-wound multi-degree-of-freedom platform; the mechanical changeover panel is fixed on a mobile platform of the shunt-wound multi-degree-of-freedom platform. The high-precision vibration simulation system greatly simplifies the design process under the premise of improving the system performance, improves the system positioning accuracy, besides, shortens the work cycle, and lowers various costs, as well as unnecessary expenditures in case of repeated design, manufacture, installation, debugging and the like after the design does not meet the requirements.

Description

technical field [0001] The invention relates to the technical field of motion simulation, in particular to a high-precision vibration simulation system based on multi-axis and multi-degree-of-freedom. Background technique [0002] The long cantilever structure system has low stiffness, and it is easy to induce the vibration of the long cantilever system when it is disturbed by the outside (low frequency) or some low frequency vibration generated by its own equipment. When this type of cantilever system is used in a place that requires high position and attitude accuracy (um, urad level), due to the impact of vibration, it cannot meet the precise positioning requirements. When the passive vibration suppression method of simply changing the material and structural design cannot meet the requirements of the cantilever system for high-precision position and attitude positioning, it is necessary to establish a vibration simulation system to assist in the position and attitude com...

AI Technical Summary

Problems solved by technology

[0004] In the traditional vibration test, the single-axis simulated vibration test is mostly used, that is, the vibration environment test is carried out one axis at a time, but the actual vibration environment is often a multi-axis vibration environment, especially for some high-precision For high-index simulation experiments, if uniaxial vibration simulation is still used, even if it is processed by means of multi-point average control, it cannot more realistically simulate the actual working environment of the reaction product.

[0005] At present, the design process of high-precision vibration simulation systems for large loads, long cantilevers, multiple disturbances, and complex environments (vacuum) is complicated, and inspection and testing are difficult. It is difficult to meet the requirements of high stability and high precision under complex conditions, and at the same time, the simulation adaptability to different environments is not very good

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