DYNAMIC ANALYSIS OF CRANE TRUSS IN CASE OF CONSTRUCTIVELY NONLINEAR OPERATION OF ITS ELEMENTS

Abstract

The paper deals with time analysis of constructively nonlinear systems under dynamic load.
The theoretical basics of the method are given. The system of resolving equations of the problem is
presented. The authors provide an example of dynamic analysis of a two-span metallic crane truss in
case of its complete failure from the emergency load of the bridge crane as a result of the load sling
abruption. The proposed method is compared with traditional calculation methods. The accuracy of
the problem solving using the time analysis is justified.
Keywords: method, time analysis, mathematical model, oscillations, dynamic reaction, constructive
nonlinearity, emergency impact, bridge crane, crane truss.