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FINITE ELEMENT SIMULATION DEVICE AND METHOD FOR CAR BODY LOCAL STRUCTURE INSTABILITY OF HIGH-SPEED MOTOR TRAIN UNIT
FINITE ELEMENT SIMULATION DEVICE AND METHOD FOR CAR BODY LOCAL STRUCTURE INSTABILITY OF HIGH-SPEED MOTOR TRAIN UNIT
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机译:高速火车单元车身局部结构不稳定性的有限元模拟装置及方法
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摘要
A finite element simulation device and a method for car body local structure instability of a high-speed motor train unit are provided. A human-machine interaction device is adopted to model firstly according to car body drawings and to build and simulate a dent portion in a local part of the car body. A boundary constraint of the car body is established, a maximum vertical load and a compression load of the car body are linearly composited, a modal frequency of the car body is defined, a static load working condition and a linear buckling analysis working condition are established, and then a car body instability simulation analysis is performed to calculate a critical buckling coefficient, thus the maximum load allowed to be applied is obtained.
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