Monitoring and analysis of dynamic behaviour of high-speed trains in long-term service using an unattended test system

• Dynamic behaviour and its evolution are concerns for those operating high-speed trains. In this paper, a cloud server is applied to establish a connection between the vehicle-mounted equipment and users to decrease the influence of network instability. To ensure the accuracy and consistency of data transmission, MQTT (Message Queue Telemetry Transport) protocol is used to transfer data measured from the vehicle. The paper discovers the vibration transfer characteristic and the evolution of the dynamic behaviour of several types of high-speed trains, along with wheel wear under several operation conditions, over time. The turbulence caused by high-order wheel polygonalization formed during long-term service, which cannot be weakened by the suspended system sufficiently, is harmful to the ride quality of high-speed trains. The results confirm the operational reliability of the high-speed trains in China and provide useful references for the optimisation and maintenance of high-speed trains. 

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Farkostteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Vehicle Engineering (hsv//eng)

Nyckelord

High-speed train

Long-term service

Tracking test

Unattended test system

Vehicle dynamic

Railroad cars

Railroad transportation

Speed

Vehicle transmissions

Vibrations (mechanical)

Wheels

Dynamic behaviours

High speed train (HST)

Long term service

Monitoring and analysis

Operation conditions

Operational reliability

Suspended systems

Vibration transfer

Railroads

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)