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TGV-2N电动车组的设计主要有2个目标:缓解高速线路运输繁忙状况(因巴黎东南线通过能力开始饱和);提高经济效益,增加座席数,减少投资和运营费用。实现上述目标所遇到的第一个难题是轴重不得超过17t。TGV-2N电动车组的车体结构全部采用铝型材制造,这不仅对TGV列车,甚至对双层客车来说都是首次应用这种工艺。该车组采用有限元法计算,使计算结果更加合理,并提高了设计安全性。在车辆结构中只用铝型材还不足以保证
The design of the TGV-2N EMUs has two main goals: to ease the heavy traffic on the high-speed lines (due to capacity saturation in the southeast Paris); to increase economic efficiency, increase the number of seats and reduce investment and operating costs. The first difficulty encountered in achieving this goal is that the axle load must not exceed 17t. The bodywork of the TGV-2N EMUs is made entirely from aluminum profiles, the first of its kind for TGV trains and even for double-decker buses. The car group using finite element method calculation, so that the calculation results more reasonable and improve the design safety. In the vehicle structure only aluminum is not enough to guarantee