Horizontal excitation test device, combination thereof and installation method of device

Abstract

The invention discloses a horizontal excitation test device, a combination thereof and an installation method of the device. The horizontal excitation test device comprises a vibration exciter fixed on the ground, a decoupling mechanism is arranged on the vibration exciter, a hoop device is arranged on the decoupling mechanism, the vibration exciter transmits power to the hoop device, a hanging device is arranged on the hoop device, the hoop device is hung by the hanging device, a lifting supporting device is arranged below the hoop device, and the hoop device is supported by the lifting supporting device. Synchronous or asynchronous parallel excitation of the vibration exciter on the test piece is realized by adopting the decoupling mechanism; the hanging mechanism is arranged to hang the clamping mechanism so as to balance the gravity of the test piece; a plurality of vibration exciters are arranged, so that the horizontal multipoint synchronous or asynchronous vibration test of a long test piece can be completed, the eccentric moment resistance is very large, and the horizontal parallel excitation test of large size, large mass and large scale can be met.

Description

technical field [0001] The invention belongs to the technical field of vibration tests, and relates to a horizontal excitation test device, a combination thereof and an installation method of the device. Background technique [0002] The electric vibration table can simulate various vibration dynamic environments, and is widely used in simulation tests of various typical vibrations such as auto parts, electronic components, and stress screening of aerospace products. For some long test pieces, such as long shafts and missiles, it is difficult for a single vibration table to meet the test requirements. At this time, two or more vibration tables are required to excite vibrations at the same time. The invention is a device for simultaneously exciting vibrations in the horizontal direction, and can carry out synchronous or asynchronous vibration tests. [0003] The current implementation plan of horizontal parallel excitation: patent CN201410734261.6; this plan mainly includes ...

AI Technical Summary

Problems solved by technology

This test system is mainly used for large test pieces and cannot meet the test requirements of long test pieces

The reasons are as follows: 1. The vibration table and the connecting piece of the bull head, and the connecting piece of the bull head and the table are all hard-connected. There is no decoupling device, so only synchronous parallel excitation test can be carried out, and asynchronous parallel excitation test cannot be carried out; 2. The size of the horizontal surface is large 1. The mass is large, resulting in small vibration acceleration, which cannot meet the high acceleration test; 3. Due to the limitations of the existing technology, it is difficult to realize the synchronization of the two platforms, so the damage to the equipment and the test piece is large, and high frequency cannot be realized. vibrations, because the synchronization of high-frequency vibrations is more difficult

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