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On Spatial Systems of Bars Spherically Jointed at Their Ends and Having One Common End

Author

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  • Valentin Răcășan

    (Department of Manufacturing and Industrial Management, National University of Science and Technology Politehnica Bucharest, 110040 Pitești, Romania
    Department of Automotive and Transportation, Pitești University Center, 110040 Pitești, Romania)

  • Nicolae-Doru Stănescu

    (Department of Manufacturing and Industrial Management, National University of Science and Technology Politehnica Bucharest, 110040 Pitești, Romania
    Department of Automotive and Transportation, Pitești University Center, 110040 Pitești, Romania)

Abstract

In this paper we consider a system of linear bars, spherically jointed at their ends. For each bar one end is linked to the origin. We discuss the equations from which one obtains the deviation of the origin, and some possible optimizations concerning the minimum displacement of the origin and the minimum force in one bar, which are the main goals of the paper. The optimization is performed considering that for two bars one end is unknown; that is, the angles between the bars and the axes are unknown. It is proved that it is difficult to obtain an analytical solution in the general case, and the problem can be discussed only by numerical methods. A numerical case is also studied and some comments concerning the results are given.

Suggested Citation

  • Valentin Răcășan & Nicolae-Doru Stănescu, 2024. "On Spatial Systems of Bars Spherically Jointed at Their Ends and Having One Common End," Mathematics, MDPI, vol. 12(17), pages 1-12, August.
    • Handle: RePEc:gam:jmathe:v:12:y:2024:i:17:p:2680-:d:1466317
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