Wheel profile is a very important factor that helps the steering performance of railway vehicle. However, during operation, wheel tends to vary inconsistently due frictional contact at wheel-rail interface. This paper focuses on problem wheelset and its alteration affects Signal-based indirect estimation technique using Fast Fourier Transform (FFT) proposed establish relationship between dynami...

The longitudinal flutter of the wheelset system has caused abnormal wear wheel-rail and stripping tread surface, resulting in complex dynamic problems locomotive. And asynchronous vibration could bring about different left right wheels when was some non-ideal working conditions. model considering effect bending moment is established to obtain equivalent force, which can carry out response simul...

The aim of this work is to develop a model-based methodology for monitoring lateral track irregularities based on the use inertial sensors mounted an in-service train. To end, gyroscope used measure wheelset yaw angular velocity and two accelerometers are acceleration bogie frame. main contribution present development very efficient Kalman-based strategy estimate irregularities. Kalman filter h...

Nowadays, press-fitting is widely used in the manufacturing industry because it allows easy and fast installation repetitive, strong, inherently reliable. The quality of a assembly can be verified from curves forced monitoring. This study aims to investigate characteristics curve with various interference railway wheelset models determine limit that axles withstand at maximum holding torque wit...

In the article, using classical provisions of theoretical mechanics, various methods constructing a computational model rolling in wheel crest wheelset wagon from when moving stock along curved section track are presented.

• The counterweight acts as the friction pendulum to form all-in-one prototype. power density can reach 1982 W m ?3 . prototype drive daily used electric appliance and wireless sensor. serve a speed sensor detect motion state of vehicles. supports self-powered real-time bogie frames monitoring. To maintain desirable service quality operational safety, monitoring unit integrated with vibration e...

The benefits of substituting the conventional solid wheelset by independently rotating wheels (IRW) in actively steered trailed railway vehicles have already been presented in many works. If a traction system is included in this kind of vehicle it will interact strongly with the active steering system. This paper investigates how traction and active steering systems can be combined in an IRW bo...

Wheel-rail systems can be modelled as mechanical multibody systems with holonomic constraints. The dynamical behaviour is described by a diierential-algebraic system of index 3 in non{Hessenberg form ((10]). We discuss the eecient numerical solution of these model equations. A perturbation analysis suggests the integration of the model equations in the Gear{Gupta{Leimkuhler (GGL) formulation. T...

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