Perpustakaan Digital ITB

Railways have become an efficient mode of land transportation due to their ability to transport large volumes of passengers, goods, and logistics within a relatively short time. Technological innovations in the railway sector have continued to advance, one of which is the development of high-speed trains. High-speed trains often utilize aluminum as a structural material due to its lightweight characteristics. However, unlike steel, which is commonly used in conventional trains, aluminum does not have an endurance limit, making it more susceptible to fatigue. On the other hand, freight wagons experience a different type of fatigue-related challenge. Under full loading conditions, the structural components of freight cars must withstand high static and dynamic loads, while under empty conditions, excitation vibrations occur due to changes in inertia. Additionally, aging railcars require a proper assessment of their remaining service life before being reintroduced into operation. Therefore, fatigue testing is essential to ensure the structural safety and durability of railcar bodies. Since fatigue analysis in railway vehicles depends significantly on the applied loads and their locations, load measurements on the bogie are necessary to obtain actual load data transmitted to the car body. Moreover, a fatigue test scheme specifically tailored to different use cases, such as high-speed railcars, must be validated using designed test rig that is adaptable for various types of railway vehicles. However, no detailed regulation currently exists regarding the implementation of fatigue testing specifically for railcar bodies. As a result, this study aims to design a fatigue testing platform that can be applied to a wide range of railcar body structures under realistic operational conditions.