Abstract
Building computational models of cranes requires using of simplifications. Frequently accepted simplification is ignoring deformations of structural components. At the same time there is no appropriate study concerning estimation of the influence of flexible crane components on the movement of a load. In the paper, the influence of flexibilities of seven crane structural components on working accuracy in relation to the trajectory of the load has been estimated. Numerically efficient telescopic crane model has been developed with the use of the finite element method. Beside of qualitative analysis used in other works to evaluate the results, a method of quantitative analysis proposed by the author has been applied. The analyses show that based on computational models one can make proper assessment of a load motion. The condition is a proper selection of considered flexible components. A parametric identification and/or quantitative assessment should be a criterion of models configuration.
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