Finite element simulating and testing system and method of bamboo winding vehicle body

Abstract

The invention discloses a finite element simulating and testing system and method of a bamboo winding vehicle body. The simulating and testing system comprises a vehicle body structure finite element model module, a vehicle body structure condition setting module and a simulating and testing module. The vehicle body structure finite element model module firstly establishes finite element models of a vehicle frame and a vehicle shell, sets the fixed connection mode of the bottom face of the vehicle shell and the bottom face of the vehicle frame, sets the unit numbers, the joint numbers and the unit types of all parts of the finite element models of the vehicle frame and the vehicle shell, and sets the materials of the vehicle frame, end plates and the vehicle shell. The vehicle body structure condition setting module sets bamboo winding vehicle body boundary constraint conditions and loads. The simulating and testing module executes simulating and testing according to two stages. By means of the system and method, a large number of true and effective test data is accumulated, and advantageous data support is provided for reliability design, production and use of a novel vehicle.

Description

technical field [0001] The invention belongs to the field of bamboo-wound high-speed trains, in particular relates to the simulation analysis of the design of a new car body structure, in particular to a finite element simulation test system and method for a bamboo-wound car body. Background technique [0002] Bamboo winding composite products, such as bamboo winding composite pipes, are products that use bamboo as a reinforcing material and thermosetting resin as an adhesive. The layer is formed by winding the fabric impregnated with resin on the mold, the reinforcement layer is formed by wrapping resin-impregnated bamboo strip rolls / curtains on the inner lining layer, and the outer protective layer is coated on the reinforcement layer. A layer of waterproof and anti-corrosion coating, mainly used for anti-aging, anti-corrosion, anti-sun. [0003] Rail vehicles include high-speed trains, bullet trains, subways, light rails, and maglev trains. The body is surrounded by roo...

AI Technical Summary

Problems solved by technology

[0008] At present, the simulation analysis of the car body structure of the EMU in the prior art mainly refers to relevant strength standards, such as the Japanese standard JIS E7105:2006, the European standard EN12663:2010 and "Strength Design and Test Appraisal of Railway Vehicles with Speeds of 200km / h and Above". "Interim Regulations" to analyze the structural strength and stiffness of the car body. However, for the car body that appears in the above-mentioned new high-speed rail traffic, it is not appropriate to use the conventional car body simulation detection and analysis method. First, it conducts a Thorough material replacement, when the internal load-bearing structure is made of metal, the analysis methods of the car body and the internal structure are different, and the characteristics of the new bamboo winding material need to be taken into account in the simulation test; second, the above-mentioned new The processing method of the car body is different from the processing method in the prior art, and the characteristics of the bamboo winding material introduced in the processing, such as the fixing method, need to be introduced into the analysis and test

Images