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通过对传统机车和高速机车受力状态及力流分布的比较分析，从结构强度和刚度出发，在满足高速机车运行和功能要求的条件下，借助于承载梁的合理布置以及梁截面型式和尺寸的适当选择，充分发挥了各个梁件在车体结构中的作用，并大大提高了车体的整体刚度，从而使车体重量等到了大幅度降低。高速机车车体每延米重量约为０．５吨，比传统设计减轻了５０％还多。
Based on the comparative analysis of the stress state and force distribution of traditional locomotives and high-speed locomotives, starting from the structural strength and stiffness, under the conditions of meeting the requirements of high-speed locomotive operation and function, with the help of the reasonable arrangement of bearing beams and the beam cross-section type and size The appropriate choice, give full play to the role of each beam in the body structure, and greatly enhance the overall stiffness of the body, so that the body weight has been significantly reduced. The weight of the high-speed locomotive body is about 0.5 tons per meter, which is 50% lighter than the traditional design.