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기둥형 로드셀 감지부의 설계변수에 따른 비선형 거동해석
이춘열,강대임,Lee, Chun-Yeol,Gang, Dae-Im 대한기계학회 2000 大韓機械學會論文集A Vol.24 No.6
Recently, force measurement systems are commonly used in many industrial fields and the precision of the measurement system is getting more important as the industry needs more precise tools and in struments to make high quality products. However, a high precision force measurement system is hard to make unless we know precisely the causes, quality and quantity of measurement errors in advance. In this work, many possible mechanical causes of measurement errors are reviewed including ratio of length to diameter of sensing part, radius of contact area, radius of bearing part, ratio of material properties and change of boundary conditions. Also, the measurement errors are analyzed by nonlinear finite element method and the nonlinear behavior of the errors are investigated. The results can be used to design force measurement systems and expected to be very useful especially for compact type load cells.
강대임(Dae-Im Kang),신홍호(Hong-Ho Shin),김종호(Jong-Ho Kim),박연규(Yon-Kyu Park) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.3
In this study, we determined boundary condition of sensing element by nonlinear analysis of finite element method for minization of end loading effect. In order to stabilize output voltage of load cell, boundary condition of contact were optimized. Then measured output voltage from experimental study confirmed the result of the finite element solution. This study is a good design of compact cylinderical load cell by analysis of finite element method.