A successful guaranteed launch of a mainline diesel locomotive is one the most important and urgent problems rolling stock operation. Improvement start-up system main when using supercapacitor allows multiple restarts locomotives, meaning that operation can be stopped several times without wasting fuel in idle operations. In this study, we simulated electric starting circuit with block supercap...

The effect of using B20 palm oil biodiesel on rail locomotive fuel filters was evaluated in this study. generator water separator filter, main filter and drive after being used along the replacement period were analyzed laboratories compared with new ones as reference. analysis SEM/EDS, FTIR GC. GC test results show that has a number deposits from components fuel, are diesel biodiesel. However,...

The condition of locomotive bearings, which are essential components in trains, is crucial to train safety. The Doppler effect significantly distorts acoustic signals during high movement speeds, substantially increasing the difficulty of monitoring locomotive bearings online. In this study, a new Doppler transient model based on the acoustic theory and the Laplace wavelet is presented for the ...

The Japanese Orthopaedic Association has proposed the term "locomotive syndrome" to designate a condition that places a person at high risk for long-term care. However, in daily clinical practice, even when a diagnosis of locomotive syndrome is made, exercise therapy often cannot be successfully performed in some patients owing to their lack of motivation. We speculated that locomotive syndrome...

The purpose of this study is to demonstrate methodology for in-use measurement of dieselelectric passenger railroad locomotives using a Portable Emission Measurement System (PEMS). The methodology was developed and demonstrated based on railyard load tests of three locomotives, including one GP40 and two F59s. These locomotives have mechanically governed prime mover engines ranging from 140 to ...

BACKGROUND Motor dysfunction is a major reason why the elderly lose their independence in their daily lives. The concept of locomotive syndrome has been proposed to describe the risk of mobility dependence caused by various locomotive organ disorders. The preservation of locomotive organs is now socially important in the middle-aged and geriatric population. Therefore, it is important to establ...

With the application of the articulated phase insulator, and the speed of electric locomotive rising, it is inevitable for the electric locomotive to adopt the technology automatic passing through the electric phase separation. However, when the locomotive passes the electric phase separation, a variety of overvoltages will be generated, such as the cut-off overvoltage and the closing overvolta...