Rail transit vehicle window bonding part design verification method

Abstract

The invention discloses a rail transit vehicle window bonding part design verification method. The method comprises the steps that (1) a rail transit vehicle window is simplified into an approximate rectangle or triangle; (2) static load calculation; (3) calculation of a dynamic load; (4) calculation of thermal load caused by temperature difference; (5) fatigue load calculation; (6) calculation ofa safety coefficient under each load working condition; (7) evaluation of an analysis result; through early calculation results and analysis, whether various loads borne by the vehicle window are smaller than the bearing limit of the adhesive or not is evaluated; whether the safety coefficient is far greater than 2 is determined; if the safety margin is far greater than 2, the safety margin is considered to be sufficient; therefore, the design size of the bonding part of a vehicle window is judged to be safe and reliable, and normal operation requirement of vehicle can be met. According to the invention, an analytical calculation method is utilized, the correctness of the size of the vehicle window bonding part is verified by comparing safety coefficients, an effective verification methodis provided for the rationality of a design file from another perspective, and the invention is simple and effective.

Description

technical field [0001] The invention relates to the technical field of bonding of rail transit vehicles, in particular to a method for verifying the design and verification of window bonding parts of rail transit vehicles. Background technique [0002] At present, the design dimensions of the window bonding parts of rail transit vehicles are usually determined by empirical values, finite element analysis and related tests. In these design methods, the experience value is closely related to the work experience of the designer, so it is difficult to guarantee the accuracy of the design; while the finite element analysis method is basically for the analysis of the whole vehicle, and is limited by the software module, it is difficult to separately analyze the bonding position. Focus on the analysis of the stress situation; while the product test period is longer, a large number of samples need to be produced, and the workload is relatively large. In addition, when other designe...

AI Technical Summary

Problems solved by technology

In these design methods, the experience value is closely related to the work experience of the designer, so it is difficult to guarantee the accuracy of the design; while the finite element analysis method is basically for the analysis of the whole vehicle, and is limited by the software module, it is difficult to separately analyze the bonding position. Focus on the analysis of the stress situation; while the product test period is longer, a large number of samples need to be produced, and the workload is relatively large

In addition, when other designers, craftsmen or quality personnel review the design dimensions, they basically judge the rationality of the process according to the original design ideas. At the same time, due to the limitation of the nature of the work, it is difficult to effectively complete it from another angle. review

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