1 Scope
This standard specifies the site, environment, content, measuring point arrangement, equipment, instruments and methods of the test, calculation of the stress, measurement of the flexibility and assessment of structure strength and rigidity, and test report.
This standard is applicable to the test and assessment of locomotive car body structure strength used for standard gauge railway and general purpose. Locomotives for other purposes may be implemented by reference to this standard.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies.
GB/T 3314-2006 General Technical Specifications for Diesel Locomotives
GB/T 3317-2006 General Technical Specification for Electric Locomotive
GB 6770-2000 Special Safety Regulations for Drivers Cabs of Locomotives (idt UIC 617-5 OR: 1977)
3 Terms and Definitions
For the purpose of this standard, the following terms and definitions apply.
3.1
Car body of locomotive
The load-bearing steel structure of the locomotive.
3.2
Car body weight load
The sum of internal equipment weight, the operated kerb weight and the car body deadweight. The weight of each equipment may be measured in 0.1kN.
3.3
Vertical test load
The vertical test load is the load acted on the car body along the direction vertical to the floor of car body. The vertical test load is 1.3 times of the car body weight load.
3.4
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Test Site and Environment
5 The Tested Car Body
6 Test Content
6.1 Vertical Load Test
6.2 Longitudinal Compression Test
6.3 Longitudinal Tension Load Test
6.4 Torque Load Test
6.5 Rescue Strength Test (Single-head Lifting)
6.6 Safe Pressure Test of the Driver's Cab
6.7 Anti-collision Structure Pressure Test of the Driver's Cab
6.8 Cowcatcher Pressure Test
7 Measuring Point Arrangement
8 Test Equipment and Instruments
9 Strain Gage and Its Pasting and Wiring
9.1 Requirements of Measuring Gage
9.2 Requirements of Temperature Compensating Gage
9.3 Pasting Requirements of Strain Gage
9.4 Wiring Requirements of Strain Gage
9.5 Moisture-proof of Strain Gage
10 Test Methods
10.1 Car Body Bearing
10.2 Test Loading
11 Stress Calculation
12 Flexibility Measurement
13 Assessment of Strength and Rigidity
14 Test Report and Information 11
Bibliography 12
