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반응표면 분석법을 이용한 마이크로 스피커 다이아프램의 형상최적설계
홍도관(D. K. Hong),우병철(B. C. Woo),권용수(Y. S. Kwon),최재기(J. G. Choi),안찬우(C. W. Ahn) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11
This study uses a characteristic function to explain correlations between the objective function and design variables. Analysis of means and table of orthogonal array were carried out. The change of shape of diaphragm, thickness of diaphragm and voice coil weight based on the table of orthogonal array is made. Therefore this study carried to decide design variables for minimizing 1st natural frequency and maximizing 2nd natural frequency of diaphragm using design of experiments and characteristic function with constraints. we showed improved design variables.
홍도관(D. K. Hong),권용수(Y. S. Kwon),최재기(J. G. Choi),안찬우(C. W. Ahn) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.10
The purpose of this study is to design 200 ㎾, 15,000 rpm 3 phase induction motor. This research deals with natural frequency and mode shape of rotating shaft of 3 phase induction motor with bearing stiffness by finite element analysis. We present natural frequency characteristic variation of rotating shaft according to change bearing stiffness. Also we are verified stability of rotating shaft from backward and forward critical speed by campbell diagram.
자동차용 Seat Adjust DC Motor의 NVH 저감에 관한 연구
권용수(Y. S. Kwon),홍도관(D. K. Hong),최재기(J. G. Choi),허윤(Y. Hur),안찬우(C. W. Ahn) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.10
Recently, uasge of DC motor is increasing for vehicle convenience and safety. According to trend, interest for noise and vibration are increasing too. In this paper, decrease of noise & vibration for Compact motor (which) developed for vehicle miniaturization and lighten will be studied. All of test implemented under actual load. Natural frequency of each parts are measured through modal & Random excite except resonance by Natural frequency.
자동차용 Seat Adjust DC Motor의 NVH 저감에 관한 연구
안찬우,홍도관,권용수,최재기,허윤 동아대학교 생산기술연구소 2006 生産技術硏究所硏究論文集 Vol.11 No.-
Recently, usage of DC motor is increasing for vehicle convenience and safety. According to trend, interest for noise and vibration are increasing too. In this paper, decrease of noise & vibration for Compact motor (which) developed for vehicle miniaturization and lighten will be studied. All of test implemented under actual load. Natural frequency of each parts are measured through modal & Random excite except resonance by Natural frequency.
반응표면 분석법을 이용한 마이크로 스피커 다이아프램의 형상최적설계
안찬우,홍도관,우병철,박일수,권용수,최재기 동아대학교 생산기술연구소 2006 生産技術硏究所硏究論文集 Vol.11 No.-
This study uses a characteristic function to explain correlations between the objective function and design variables. Analysis of means and table of orthogonal array were carried out. The change of shape of diaphragm, thickness of diaphragm and voice coil weight based on the table of orthogonal array is made. Therefore, this study carried to decide design variables for minimizing 1st natural frequency and maximizing 2nd natural frequency of diaphragm using design of experiments and characteristic function with constraints. We showed improved design variables.