The strength testing and fatigue testing of railway system
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The strength testing and fatigue testing of railway system
Specifically, strength and fatigue testing form the core components of railway system safety. Together, these two tests ensure the long-term stable operation of trains. In more detail, strength testing verifies whether railway components can withstand extreme loads, while fatigue testing focuses on component durability under long-term repeated loads. Consequently, these two tests together establish the foundation of railway component safety assessment.
For railway applications, SINOTEST provides stable and reliable testing rigs. As a result, we bring users a secure and efficient testing system for railway components.
AVAILABLE MODELS
Rail Components Testing Rig
Railway fasteners connect rails to sleepers (or other sub-rail foundations). Their function is to fix the steel rail, maintain track gauge, and prevent longitudinal and transverse rail movement relative to the sleeper[reference:8].
Bogie Frame Testing Rig
The bogie test system generally includes a gantry composite frame, iron floor, hydraulic system, vertical loading cylinder, horizontal loading cylinder, tooling, and control system. Accordingly, it can complete both static strength tests and fatigue tests of the bogie[reference:12]. In terms of scope, the main test objects include air springs, bogies, couplings, wheelsets, rubber joints, and wheel hub bearings.
Rail Components Testing Rig
Specifically, railway fasteners are parts used on the track to connect rails and sleepers (or other types of sub-rail foundations). Engineers also refer to them as intermediate connecting parts. Their primary function is to fix the steel rail onto the sleeper, maintain the track gauge, and prevent both longitudinal and transverse movement of the rail relative to the sleeper. In terms of classification, the railway rail fastening system divides into three types: spring clip fastening systems, buckle plate fastening systems, and spring bar fastening systems.
Typically, the Rail fatigue testing rig features a four‑column frame, a working platform, and vertical, longitudinal, and transverse loading mechanisms. Specifically, its main purpose is to test the fatigue performance of steel rails under complex stress states during turning.
Specifically, the fatigue testing rig for elastic bars uses a motor as its power source. Through a transmission mechanism, this motor drives a polygon to rotate, which in turn generates high‑frequency vibration on the vibration plate and loads the spring bars. In terms of performance, the maximum loading frequency reaches 1000 Hz, with a maximum amplitude of 0.05 mm. Moreover, operators can adjust both amplitude and frequency during the test. Consequently, this equipment enables fatigue life testing of spring bars within a short period of time.
Bogie Frame Testing Rig
Typically, the bogie test system includes a gantry composite frame, an iron floor, a hydraulic system, vertical and horizontal loading cylinders, tooling, and a control system. With this configuration, it can complete both the static strength test and the fatigue test of the bogie.
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