EVALUATION OF THE POTENTIAL DEFORMATION ENERGY FROM THE ELASTIC ELEMENT OF A BIONIC DISPLACEMENT SYSTEM

Adrian Ioan BOTEAN

Abstract


In this paper, I present a multidisciplinary approach to establishing the maximum loaded cross-section of the elastic element of the bionic displacement system (whose conception must base on the principle of biomimicry), as well as the evaluation of the state of stresses and strains respectively of the accumulated potential deformation energy. This study involves modeling the structure using the finite element method for efforts evaluation (axial force N, shear force T, and bending moment Mi), the use of analytical models for calculating mechanical stresses and potential deformation energy, and the use of electrical strain-gages method to experimental evaluation of strains. The evaluation of strains (a total of 2,979 processed data) is performed in two working scenarios: for the case where there is bipedal support (S1) and for the case of unipedal support, for uniform rectilinear movement (S2). In both scenarios, the relative deviations (concerning the potential deformation energy) between the analytically and experimentally obtained results are below 11 percent. This study has relevance, especially from the perspective of the possibility of optimally dimensioning the elastic element so that the bionic displacement system has its mass as small as possible.


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