Abstract
For regular hinge-rod systems, an engineering technique for analyzing the stress-strain state is developed, taking into account the transformation of the shape of the structure by folding repeated fragments in the plane of the smallest stiffness. As a result, the original straight shape turns into an arched truss. The proposed meth-od is based on the extension of the modified Lagrange method to the problem of analyzing the stress-strain state of a spatial truss structure with kinematically directed shape change. A step-by-step adjustment of the structure geometry is used, taking into account the resulting nodal displacements. For the software implemen-tation of the proposed calculation algorithm, a macro is compiled in the APDL language embedded in the ANSYS Mechanical software package. A step-by-step procedure was tested that simulates the transformation process of the spatial farm geometry.
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