COMPOSITE MOMENT GYROSCOPES BRACKET STRUCTURE OPTIMIZATION AND SIMULATION

Abstract

Abstract: To increase the structure efficiency of moment gyroscopes bracket, based on modal and mass ratio optimization, the dynamics model of moment gyroscopes bracket was analyzed. By calculating with FEM, the weight of composite moment gyroscopes bracket is 7.32 kg, the base frequency is 255.06 Hz, and the ω/m is 34.83 Hz/kg. To increase the efficiency of composite, the geometry structure was optimized, the research shows that the ω/m is improved by 4.2% when the thick of the base structure is increased by 1 mm. The ω/m is improved by 39.21% with the T strength stiff addition. Based on the T strength stiff structure, the composite lay designing was conducted, the research shows the efficiency of gyroscopes bracket structure is higher with quasi-isotropy lay design, which is 48.49 Hz/kg. Considering the processing of integral cure, the ω/m is 47.79 Hz/kg with _ns lay design.

Key words: composite, moment gyroscopes, structure efficiency, FEM, optimization

CLC Number:

TB332

DONG Xiao-yang, SHI Wen-feng, GUO Jin-hai, ZHANG Yu-jie. COMPOSITE MOMENT GYROSCOPES BRACKET STRUCTURE OPTIMIZATION AND SIMULATION[J]. Fiber Reinforced Plastics/Composites, 2018, 0(9): 30-35.

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