Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Finite Element Analysis of Nonlinear Behavior of a Column Type Sensing Element for Load Cell According to Design Parameters

기둥형 로드셀 감지부의 설계변수에 따른 비선형 거동해석

  • Published : 2000.06.01
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Abstract

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.

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References

  1. Bray, A., 1972, 'The Influence of Contact Stresses on the Characteristics of a Load Cell,' V D I Berichte, pp. 43-52
  2. Robinson, G. M., 1986, 'Errors due to Non-Uniform Axisymmetric Loading of Column Load Cells,' Mechanical Problems in Measuring Force and Mass, Martinus Nijhoff Publishers
  3. Robinson, G. M., 1995, 'Genetic Algorithm Optimization of Load Cell Geometry by Finite Element Analysis', pp. 927-952
  4. Robinson, G. M., 1995, 'The Influence of Contact Stresses on Cylindrical Strain Gauge Load Cells,' Proceedings of the 14th Conference of IMEKO TC3 on Measurement of Force and Mass, Warszawa, Poland
  5. Yamaguchi, Y., Ishino, J. and Hida, N., 1984 'Evaluation of Creep of Load Cells Utilizing Strain Gauges,' Proceedings of the 10th Conference of IMEKO TC3 on Measurement of Force and Mass, Kobe, Japan
  6. Sundin, K. G. and Johsson, M., 1985, 'A Stiff and Compact Impact-Force Transducer Based on Strain Measurement', Cambridge Univ.
  7. Mitchell, R. A.,Woolley, R. M. and Fisher, C. R. , 1971, 'Formulation and Experimental Verification of an Axisymmetric Finite-element Structural Analysis', J. of Res. of the National Bureau of Standards, 75C, Nos 3 & 4, 155-163
  8. Williams, D. C, 'The Effect of Non-uniform Loading on a Cylindrical Load Cell Billet,' MOM Technical Note No; 40. National Physical Laboratory, Teddington, England
  9. Kang, D. I., 1994, 'Design and Application of Force Measuring System Using BUILD-UP Technique,' Dissertation, KAIST
  10. Pontius, P. E. and Mitchell, R. A., 1980, 'Inherent Problems in Force Measurement,' Fourth SESA International Congress On Experimental Mechanics, Boston, USA
  11. Sachdeva, T. D. and Ramakrishnan, C. V. , 1981, 'A Finite Element Solution for Two-Dimensional Elastic Contact Problems with Friction,' International Journal of Numerical Methods in Engineering, 17, pp. 1257-1271 https://doi.org/10.1002/nme.1620170809
  12. Lee, C. Y. and Oden, J. T., 1993, 'A Priori Error Estimation of hp-Finite Element Approximations of Frictional Contact Problems with Normal Compliance ', International Journal of Engineering Science, 31(6) pp. 927-952 https://doi.org/10.1016/0020-7225(93)90104-3
  13. Measurement Group, 1988, 'Strain Gage Based Transducers,' Measurement Group, Inc., Raleigh, USA
  14. Tegelarr, P., 1970, 'Some Development at TNO on Load Cells for Weighing Purpose,' VDI-Berichite, No. 137