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CALCULATION OF INSTANT-RIGID HINGED-ROD SYSTEMS WITH MISSING LINKS

The problem of determination of forces and displacements in a spatial hinged-rod system with missing (up to geometrically unchangeable) links under static loading is considered. Equilibrium equations and geometric relations are writt en in a matrix form. The calculated equations are not linear. To solve the equations we propose a general technique that is not related to assumptions about the structure of the system or the nature of the load based on the fact that the displacements obtained by solving a linear part of the equations can be substantially refi ned by interpreting the nonlinear terms as a load under the action of which the system can be regarded as linear.