Calculating Strength of Truck-Trailer Frames by Using Software MSC Adams and the Finite Element Method

摘要

A method of calculating strength of frames of truck trailers with a central axle (axles) by using interface of MSC Adams software, for a dynamic analysis of mechanical systems, and NX Nastran/Femap software, for the finite element method (FEM) analysis, is presented in the paper. The transfer of information between these both programs is realized within this interface which is presented in detail in the paper. In the approach proposed, a method of reduction of degrees of freedom of the FEM model has been developed based on Craig-Bampton Method belonging to the group of methods known as component mode synthesis. At the beginning of the proceeding geometrical models of components of the truck and the trailer by using program SolidWorks have been worked out. In the analysis, it has been assumed that the modeled truck-trailer combination can drive over the road with unevenness of a specific shape. Some computing results were verified experimentally. The model of truck-trailer combination can be treated as its virtual prototype useful in a design process.