System for multicriteria design of strain gauge load cells having axis symmetrical elastic elements
Authors: Gavrilenkov S.I., Gavrushin S.S., Godzikovskiy V.A.
Published in issue: #1(61)/2017
DOI: 10.18698/2308-6033-2017-1-1578
Category: Mechanics | Chapter: Mechanics of Deformable Solid Body
This paper briefly touches upon the mechanics of strain gauge load cells and states the problem of strain gauge load cell design. The mentioned problem is subdivided into two tasks: picking and choosing the shape and the dimensions of the elastic element, and finding the right spots for mounting strain gauges on the elastic element. We created a system for designing strain gauged load cells having axis symmetrical elastic elements. The system implements the method of parameter space investigation and utilizes capabilities of the CAE system ANSYS. The system's capabilities are demonstrated by designing a load cell for Weigh-In-Motion scales. Solution of this design problem comprises defining the parameter space and setting the values of the criteria constraints. We investigated the parameter space using the system mentioned above. Finally, we developed a finite-element model of the load cell being designed. The numerical experiments resulted in a Pareto-feasible set, which is given to the Decision Maker, so that he could choose the best option.
References
[1] Gavryushina N.T., Nepochatov A.V., Godzikovskiy V.A. Izvestiya vysshikh uchebnykh zavedeniy. Mashinostroyeniye - Proceedings of Higher Educational Institutions. Machine Building, 2013, no. 2, pp. 69-74.
[2] OIML R60. Available at: http://www.fundmetrology.ru/depository/04_IntDoc_all/R%2060.pdf (accessed October 25, 2016).
[3] Hoffmann K. Applying the Wheatstone Bridge Circuit. Available at: https://www.hbm.com/en/3193/tips-and-tricks-applying-the-wheatstone-bridge-circuit/ (accessed October 25, 2016).
[4] Kreuzer M. Wheatstone Bridge Circuits Show Almost No Nonlinearity and Sensitivity Errors When Used for Single Strain Gage Measurements. Available at: https://www.hbm.com/en/3196/tips-and-tricks-wheatstone-bridge-circuits-show-almost-no-nonlinearity-and-sensitivity-errors-when-used-for-single-strain-gage-measurements/ (accessed October 25, 2016).
[5] Gavryushin S.S., Baryshnikova O.O., Boriskin O.F. Chislennyy analiz elementov konstruktsiy mashin i priborov [Numerical analysis of structural elements of machines and devices]. 2nd ed. Moscow, BMSTU Publ., 2014, 479 p.
[6] Sobol I.M., Statnikov R.B. Vybor optimalnykh parametrov v zadachakh so mnogimi kriteriyami [Choosing the optimal parameters in problems with many criteria]. 2nd revised edition. Moscow, Drofa Publ., 2006, 175 p.
[7] Statnikov R.B., Gavrushin S.S., Dang M.H., Statnikov A.R. Multicriteria Design of Composite Pressure Vessels. International Journal of Multicriteria Decision Making, 2014, vol. 4, no. 3, pp. 252-278.
[8] Gavryushin S.S., Nepochatov A.V., Godzikovskiy V.A. Izvestiya Moskovskogo gosudarstvennogo tekhnicheskogo universiteta MAMI - Proceedings of Moscow State Technical University MAMI, 2014, no. 4, 2014, pp. 88-94.
[9] Gavryushin S.S., Gavrilenkov S.I. Inzhenernyy vestnik - Engineering bulletin, 2015, no. 10, pp. 538-547. Available at: http://engsi.ru/file/825307.html?s=1 (accessed October 25, 2016).
[10] Robinson G.M. Finite element modeling of load cell hysteresis. Measurement, 1997, vol. 20, no. 2, pp. 103-107.