Monitoring of the State Condition of Railway Wheel Set Rolling

• Autorzy: Meinke P.
• Konferencja: Polish-German Workshop on Dynamical Problems in Mechanical Systems (9 ; 4-10.09.2005 ; Paszkówka, Poland)
• Języki publikacji: EN

Abstrakty

EN

Extended abstract. The environmental impact (vibration, noise) and the recurrent maintenance needs of pavement, sleepers and rails depend strongly on the surpassing traffic, causing interaction between vehicle and track and creating its specific "Footprint". Most important is the time behaviour of the travelling contact forces between the wheel sets and the rails as an origin of load and excitation of the track panel. Against commonly raised opinions not only the vertical forces, but also lateral and longitudinal contact forces determine its damaging and destruction. The rolling wheelset obtains not only one the unique "balanced" habitation of smooth rolling along the track bed, but every other position of the wheelset relatively to the varying parameters the track, caused e.g. by track irregularities, curving, switches, wind forces, bogie design, speed etc creates restraints in the wheelset- and the track panel structure, which will discharge more or less continuously by friction induced vibrations. It is those vibrations, which cause corrugation, ballast deterioration, wear and noise/squealing and other environmental impact. The wheel set rolls under the described conditions "unhealthy" and the mentioned conditions should be detected by monitoring. A "smart sensor" should be used, reared to detect unhealthy rolling of the wheelset, indicating such undesirable impact onto the track and to the environment. The described smart sensor should be installed at first on certain trains, running on pilot lines, for instance in the East/West traffic (e.g. Warsaw/Brussels). The temporary unhealthy rolling events should be reported together with their locations of the vehicle towards a monitoring centre (eg. by satellite communication), for a medium term improvement of the "footprint" and the rolling quality of the wheel sets. A co-operation with the IPPT, Cracow Technical University and Prof. Diomin, Kiev is intended. Such insights, gathered from the expected results, can later on be introduced into the design of "enviromental friendly" bogies as well as into the design of improved track beds. Also inputs and recommendations to the TSI are to be expected. They are important, because the transborder traffic, especially in the East/West corridor, will increase within the coming years. Also a more gentle railway transportation of goods will facilitate the decision of haulage contractors, to use again more railway- instead road transportation.

Słowa kluczowe

EN

monitoring; wheel set; rolling; railway wheel

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Problems
• Rocznik: 2006
• Tom: Vol. 30, No. 1
• Strony: 43--44

Twórcy

autor

Meinke P.

• University of Stuttgart. Institute of Engineering and Computational Mechanics.,