Robust Design of the Vibratory Gyroscope with Unbalanced Inner Torsion Gimbal Using Axiomatic Design

공리적 설계를 이용한 비대칭 내부 짐벌을 가진 진동형 자이로스코프의 강건설계

  • 박경진 (한양대학교 기계.경영정보공학과) ;
  • 황광현 (한양대학교 기계설계학과) ;
  • 이권희 (동아대학교 기계공학과) ;
  • 이병렬 (삼성종합기술원, MEMS Lab.) ;
  • 조용철 (삼성종합기술원, MEMS Lab.) ;
  • 이석한 (삼성종합기술원, MEMS Lab.)
  • Published : 2002.05.01


Recently, there has been considerable interest in micro gyroscopes made of silicon chips. It can be applied to many micro-electro-mechanical systems (MEMS): devices for stabilization, general rate control, directional pointing, autopilot systems, and missile control. This paper shows how the mechanical design of the gyroscope can be done using axiomatic design, followed by the application of the Taguchi robust design method to determine the dimensions of the parts so as to accommodate the dimensional variations introduced during manufacturing. Functional requirements are defined twofold. One is that the natural frequencies should have fixed values, and the other is that the system should be robust to large tolerances. According to the Independence Axiom, design parameters are classified into a few groups. Then, the detailed design process is performed fellowing the sequence indicated by the design matrix. The dimensions of the structure are determined to have constant values fur the difference of frequencies without consideration of the tolerances. It is noted that the Taguchi concept is utilized as a unit process of the entire axiomatic approach.


Gyroscope;Robust Design;Axiomatic Design;Design Matrix;Sensitivity


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