本文件规定了实现转向架构架满意设计所遵循的方法，包括设计程序、评估方法、验证和制造质量要求。它仅限于转向架构架的结构要求，包括靠垫和轴箱壳体。在本文件中，这些术语包括所有功能附件，例如阻尼器支架。

This document specifies the method to be followed to achieve a satisfactory design of bogie frames and includes design procedures, assessment methods, verification and manufacturing quality requirements. It is limited to the structural requirements of bogie frames including bolsters and axlebox housings. For the purpose of this document, these terms are taken to include all functional attachments, e.g. damper brackets.