Method for quickly analyzing bonding strength of side window of high-speed train

Abstract

The invention relates to a method for quickly analyzing bonding strength of a side window of a high-speed train. A global modeling and local modeling combination method is adopted for a train body, a bonder, glass and a window frame during finite element modeling; the train body is modeled by adopting a large-sized unit; and the bonder, the glass and the window frame are modeled by adopting small-sized units. The method comprises the steps of firstly performing strength analysis on the train body to obtain a deformation displacement of the train body; secondly performing transfer from the deformation displacement of the train body to a displacement of the bonder by adopting a triangle area interpolation method; and finally loading a displacement obtained by interpolation to finite element models of the bonder, the glass and the window frame, considering actual working conditions of the side window, and performing submitting and calculation so as to quickly analyze the bonding strength of the bonder and lay a foundation for strength check and lightweight design of a bonding structure in the later period. The invention proposes a method for quickly calculating the bonding strength of the side window of the high-speed train. According to the method, repeated modeling and workload can be reduced; and in addition, the number of the finite element models can be reduced and the calculation efficiency can be improved.

Description

technical field [0001] The invention relates to a rapid analysis method for the bonding strength of a side window of a high-speed motor vehicle, and more specifically, relates to a rapid analysis method applied to the bonding strength of a side window of a high-speed motor vehicle and a car body. Background technique [0002] The side windows of high-speed trains are connected to the car body by bonding. In the process of analyzing the bonding strength by using the finite element method, the car body, glass, and window frame generally use shell elements, and the adhesive uses body elements. Traditional analysis methods can only model the car body, window and adhesive as a whole. Considering that the thickness direction of the adhesive is small, the unit size of the car body should not be too large during finite element modeling, which will make the car body The number of nodes and elements of the body finite element model is as high as millions, and when the size of the adhe...

AI Technical Summary

Problems solved by technology

Traditional analysis methods can only model the car body, window and adhesive as a whole. Considering that the thickness direction of the adhesive is small, the unit size of the car body should not be too large during finite element modeling, which will make the car body The number of nodes and elements of the body finite element model is as high as millions, and when the size of the adhesive is redesigned, the modification workload of the finite element model of the car body, glass, adhesive, and window frame is very huge, which not only It will greatly extend the analysis cycle, and at the same time have more stringent requirements for hardware facilities

Images