System and method for monitoring fluttering in dressing process of satellite structure

Abstract

The invention discloses a system and method for monitoring fluttering in the dressing process of a satellite structure. The system comprises a digital control floor type milling machine, a digital control knife handle, a movable type rotary table, an adjustable lifting platform, a laser vibration measurer, a data collector and an industrial personal computer internally loaded with vibration data processing software. The system is characterized in that the adjustable lifting platform is installed on the ground outside a machine tool vibration isolation trench through a rotary table guide rail.The adjustable lifting platform is installed on the rotary table guide rail in a sliding mode. The laser vibration measurer is placed on the adjustable lifting platform, connected with the data collector and the industrial personal computer internally loaded with the vibration data processing software through cables, and used for achieving collection and A / D signal conversion of vibration data. The digital control knife handle is installed in a spindle of the digital control floor type milling machine. By means of the system and method for monitoring fluttering in the dressing process of the satellite structure, fluttering monitoring and restraining in the platform assembling dressing process of the satellite structure can be achieved effectively, surface dressing quality is improved, andthe risk of damaging a satellite body due to fluttering in the satellite dress process is reduced.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing, in particular to a flutter monitoring system and method during satellite structure trimming. Background technique [0002] The satellite structure generally adopts a repeatable disassembled box structure composed of tube plates and trusses, which needs to provide a fixed installation interface for spaceborne instruments and equipment and maintain a certain degree of accuracy. Since the satellite structures are mostly thin-walled and truss structures with weak rigidity, flutter is likely to occur during combined machining and trimming. When the amplitude is too large, the depth of cut is too large, and the cutting force of the tool increases. This will not only deteriorate the quality of the machined surface, but also cannot To ensure the position accuracy of the mounting surface, it may even damage the star structure and cause huge losses. [0003] In the traditional satellite t...

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Problems solved by technology

[0005] Aiming at the defects in the prior art, the object of the present invention is to provide a system and method for flutter monitoring in the satellite structure trimming process of a satellite structure platform, which solves the problem that chatter cannot be judged in real time and quantitatively in the traditional satellite trimming process, which makes the machining process exist. Problems such as poor surface quality and risk of damage to stars are suitable for the assembly and manufacturing process of satellite structural platforms

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