Mounting device for large mass test piece on vibrating centrifuge

Abstract

The invention discloses a large-mass test part mounting device on a vibration centrifuge. An electric vibration table is arranged on a rotating arm of the vibration centrifuge, and one end of a test part is mounted on the face of the electric vibration table; an auxiliary expansion table is mounted on the rotating arm, one side face of the auxiliary expansion table is close to one side face of the test part, and a gap is reserved between the one side face of the auxiliary expansion table and one side face of the test part; a hydrostatic bearing is mounted on one side face of the auxiliary expansion table, a clamp is mounted on the other opposite side face of the hydrostatic bearing, and one side face of the test part is mounted on the clamp; the manner of combining the hydrostatic bearing and the auxiliary expansion table is adopted to bear gravity or centrifugal force borne by the test part, and the test part cannot be completely mounted on the face of the electric vibration table. The clamp, the hydrostatic bearing and the auxiliary expansion table are mounted on the rotary arm, the load capacity of the test part is obviously improved, and the effective quality of the test part and the whole test capacity of the vibration centrifuge can be obviously improved.

Description

technical field [0001] The invention relates to a test piece installation device on a vibration centrifuge, in particular to a large-mass test piece installation device on a vibration centrifuge. Background technique [0002] The vibrating centrifuge is an advanced dynamics simulation test device that installs an electric vibration table on the arm of the centrifuge. Its main purpose is to apply a wide-band random vibration load and quasi-static acceleration load to the test piece at the same time for simulating high-speed aircraft. The received vibration-acceleration comprehensive environment. The schematic diagram of a typical vibrating centrifuge is shown in figure 1 As shown, the main shaft 8 is installed in the base 7, the centrifuge arm 4 is installed on the upper end of the main shaft 8, one end of the centrifuge arm 4 is equipped with a counterweight 6, and the other end of the centrifuge arm 4 is equipped with an electric vibration The table 3 and the test piece 1...

AI Technical Summary

Problems solved by technology

[0009] It can be seen from this that, whether in China or abroad, the mainstream technology still only uses the guide device or bearing inside the vibrating table to bear the huge centrifugal force, and the working state of the supporting bearing inside the vibrating table deviates greatly from the ideal state, and then Greatly reduce the bearing capacity of the bearing, which ultimately leads to a great limitation of the effective mass of the test piece

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