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Micro-amplitude angular vibration exciter

An angular vibration and exciter technology, which is applied in the direction of the fluid using vibration, can solve the problem of unable to meet the needs of the angular vibration simulation test of the moving parts on the satellite, and meet the requirements of micro-angle vibration amplitude and accuracy, and the manufacturability Good, stiffness-enhancing effect

Active Publication Date: 2016-12-07
BEIJING INST OF SPACECRAFT SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, none of the above-mentioned inventions can meet the requirements of the angular vibration simulation test of the moving parts on the star.

Method used

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  • Micro-amplitude angular vibration exciter
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  • Micro-amplitude angular vibration exciter

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Embodiment

[0045] In the embodiment of the present invention, there are 2 voice coil motors 4, the base 1 is cylindrical, and there are fan-shaped bosses in two opposite quadrant areas, and the mover 2 is also cylindrical, with fan-shaped bosses in the other two opposite quadrant areas. There is a circular hole on both sides of the fan-shaped boss of the base 1 and the mover 2, which is used to place two voice coil motors 4 horizontally. The fixed end 41 of the voice coil motor 4 is fixed to the two sides of the boss of the base 1 by screws. In the hole, the movable end 42 is fixed in the two holes on the side of the boss of the mover 2 by screws, and the central cylindrical area formed by the combination of the base 1 and the fan-shaped boss of the mover 2 is installed with the flexible hinge 3; Both 31 and the lower mounting platform 32 are cylindrical, and are respectively fixed on the base 1 and the mover 2 through four mounting holes. Considering the convenience of processing, the n...

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Abstract

A micro-amplitude angular vibration exciter comprises a base (1), a rotor (2) and the like; the base (1) and the rotor (2) are coaxial and combined to be in butt joint to form a hollow cylinder structure; voice coil motors (4) leave the axis of the base (1) to be transversely installed at the butt-joint interval of the base (1) and the rotor (2); the movable ends (41) and the fixed ends (42) of the voice coil motors (4) are connected with the base (1) and the rotor (2) correspondingly; the resultant force of thrust generated by the voice coil motors (4) is zero, and only torque is generated; a flexible hinge (3) is coaxial with the base (1) and the rotor (2) and installed in the middle of the cylinder structure, and the two ends of the flexible hinge (3) are connected with the base (1) and the rotor (2) correspondingly; and a driver (5) is connected with the voice coil motors (4) and drives the movable ends (41) of the voice coil motors (4) to generate thrust. The micro-amplitude angular vibration exciter is simple and compact in structure, small in damp, rapid in frequency response, high in output torque or angular displacement signal precision, and small in output torque or angular displacement signal amplitude.

Description

technical field [0001] The invention relates to an angular vibration exciter. Background technique [0002] With the significant improvement of spacecraft imaging resolution, the degree to which imaging quality is affected by micro-vibrations is also more obvious. The main disturbance components of the moving parts on the star, such as the sailboard driving mechanism and the antenna driving mechanism, all manifest as slight angular vibrations, and the optical camera is most sensitive to angular vibrations. The impact of quality is essential. In order to directly measure the influence of these angular vibrations, it is necessary to install the above-mentioned movable parts and the connected solar wings, antennas, etc., and make them in the state of being deployed on orbit. However, in the actual test, due to the limitations of the test site, cycle and cost, the above test conditions are often not met. Therefore, it is necessary to develop an exciter to simulate the angular...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B06B1/16
CPCB06B1/16
Inventor 吴蓓蓓郝刚刚王光远管帅曹京吴挺祖家国
Owner BEIJING INST OF SPACECRAFT SYST ENG
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