GB/T 37454-2019 English PDF

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GB/T 37454-2019: Design method for non-powered axles of rolling stock
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 37454-2019	679	Add to Cart	6 days	Design method for non-powered axles of rolling stock	Valid

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Basic data

Standard ID: GB/T 37454-2019 (GB/T37454-2019)
Description (Translated English): Design method for non-powered axles of rolling stock
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: S33
Classification of International Standard: 45.060
Word Count Estimation: 34,319
Date of Issue: 2019-05-10
Date of Implementation: 2019-12-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies the forces and moments that should be considered in the design of non-powered axles of railway vehicles based on mass and braking conditions, the determination of the geometric characteristics of the various parts of the axle, and the allowable stresses. This standard applies to the design of solid and hollow non-powered axles for railway passenger cars and freight cars of various gauges. Non-powered axle designs for light rail vehicles and trams can be used as a reference. This standard does not apply to the design of non-powered axles for locomotives and power bogies.

GB/T 37454-2019: Design method for non-powered axles of rolling stock

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Design method for non-powered axles of rolling stock ICS 45.060 S33 National Standards of People's Republic of China Railway vehicle non-power axle design method Published on.2019-05-10 2019-12-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword I 1 Scope 1 2 symbol 1 3 Overview 2 4 Designs to consider the forces and moments based on mass and braking conditions 3 4.1 Type of force 3 4.2 The role of quality in sports 3 4.3 Braking action 6 4.4 Effect of curve passing and wheel geometry 9 4.5 Calculation of combined torque 9 5 Determination of geometrical characteristics of each part of the axle 9 5.1 Stress of each section of the axle 9 5.2 Determination of journal and shaft diameter 13 5.3 Determination of the diameter of each axle of the axle 13 6 allowable stress 16 6.1 General 16 6.2 JZ6 steel 16 6.3 Steel other than JZ6 17 Appendix A (informative) Axle calculation template 19 Appendix B (informative appendix) Tilting vehicle load factor calculation method 22 Appendix C (informative) The force considered for the design of a meter rail or a narrow rail pair close to the meter rail 23 Appendix D (Normative Appendix) Method for determining the full-scale fatigue limit of new steel grades 24 Reference 30

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed and managed by the State Railway Administration. This standard was drafted. CRRC Qingdao Sifang Vehicle Research Institute Co., Ltd., China Railway Science Research Group Co., Ltd. Locomotives Research Institute, CRRC Qingdao Sifang Locomotive & Rolling Stock Co., Ltd., CRRC Changchun Railway Co., Ltd., CZ Zhuzhou Electric Locomotive Limited company. The main drafters of this standard. Yan Kejun, Pang Weijuan, Chen Houzhen, Zhou Pingyu, Li Guodong, Luo Yanyun. Railway vehicle non-power axle design method

1 Scope

This standard specifies the forces and moments based on mass and braking conditions and the various parts of the axles that should be considered in the design of non-powered axles for railway vehicles. What characteristics are determined and the allowable stress. This standard applies to all gauges 1) solid and hollow non-powered axle design for railway passenger cars and trucks. Light rail vehicles and trams Non-powered axle design can be used as reference. This standard does not apply to the design of non-powered axles for locomotives and power bogies.

2 symbol

The symbols listed in Table 1 apply to this document. Table 1 symbol Serial number symbol unit description 1 m1 kg mass on the journal per wheel (including bearing and axle box mass) 2 m2 kg wheel pair mass and the mass on the wheel pair between the two rolling circles of the wheel (brake disc, etc.) 3 m1 m2 kg wheel pair on the rail 4 gm/s2 gravity acceleration 5 PN One-half of the vertical force applied to the rail per wheel, P= M1 m2( )g 6 P0 N Vertical static load on each journal when the load is symmetrical, P0= M1g 7 P1 N Vertical force on the side journal 8 P2 N Vertical force on the side of the load shedding Part of the braking force of the 9 P' N mechanical brake system 10 Y1 N The load-bearing side is perpendicular to the rail wheel horizontal force 11 Y2 N Wheel-load horizontal force perpendicular to the rail on the load-relief side 12 HN balances the forces of Y1 and Y2 13 Q1 N Increased load side vertical reaction force 14 Q2 N Load-reducing side wheel vertical reaction 15 Fi N Mass applied to the unsprung components (brake discs, gears, etc.) installed between the two wheels Force, i means a certain unsprung component 16 Ff N Maximum pressure of a brake on a brake shoe or brake disc on the same brake shoe 1) For non-standard gauges, some formulas need to be modified. ......

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