A kind of scientific experiment cabinet skin assembly and preparation method for space station

Abstract

The invention discloses a skin component of a scientific test cabinet for a space station and a preparation method. Wherein, the skin assembly includes a first part, a second part and a third part; wherein, the first part and the second part are integrally connected, and the second part and the third part are integrally connected. The invention has the advantages of improving the damping coefficient of the structure and reducing the vibration response under the premise that the weight of the structure is not increased, the original configuration of the structure is not changed, the mode of the structure is not changed, and the rigidity / strength of the structure is not significantly affected.

Description

technical field [0001] The invention belongs to the field of vibration control, in particular to a skin component of a scientific test cabinet for a space station and a preparation method. Background technique [0002] Vibration has its advantages. Using the principle of vibration, various vibration machines can be made to improve work efficiency. Vibration also has its harmful side. For example, vibration can affect the function of precision instruments and equipment, reduce processing accuracy, aggravate fatigue and wear of components, shorten the service life of machines and structures, and deteriorate the environment. [0003] Generally speaking, vibration control actually refers to vibration suppression, that is, by taking certain measures on the vibration source, transmission path and the structure of the system itself, the vibration hazard is limited to a minimum or reduced to a permissible level. [0004] Vibration suppression can be divided into passive and active....

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Problems solved by technology

This method also has the following disadvantages: the change of the structural mode is large, and the interface of the vibration isolator to the structure is greatly changed. Usually, the structural mode decreases, the stiffness decreases, and the displacement increases during the vibration process, which cannot be used for some stand-alone machines (such as optical equipment) that require relatively high precision.

This method has the following disadvantages: the action frequency area is narrow, and it can only be used when the excitation force and structural frequency are relatively stable and narrow-band; the additional mass is generally not less than 5% of the vibration-reducing equipment, and the weight gain is relatively large

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