Examination of the Relationship Between the Condition of a Track and Dynamic Response of a Vehicle Based on Measurement Signals

• Autorzy: Dróździel J. , Mączak J. , Radkowski S.
• Języki publikacji: EN

Abstrakty

EN

The paper presents functional models of a railcar-track dynamic system developed based on measurement signals related to irregularities of the railway track treated as the inputs and measuring signals of accelerations of selected points of the railcar as the outputs. Models of varied structure are compared: from the simplest one of a single input - single output type to stratified systems with several inputs and a single output. In the course of modeling, mutual relationships between input signals are omitted at this stage. The task of the study is to evaluate the usability of such models for the assessment of the impact that the condition of the rail-track has on dynamic properties of rail-cars. The analysis is predominantly conducted on the basis of the power spectral density of response functions for individual models.

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Problems
• Rocznik: 2003
• Tom: Vol. 27, No. 2
• Strony: 25--36
• Opis fizyczny: Bibliogr. 7 poz.

Twórcy

autor

Dróździel J.

• Faculty of Transport, Warsaw University of Technology

autor

Mączak J.

• Faculty of Automobiles, Warsaw University of Technology

autor

Radkowski S.

• Faculty of Automobiles, Warsaw University of Technology

Bibliografia

• 1. Bendat, J. S., Piersol, A.G ., 1971, Random data: Analysis and measurement procedures, J. Wiley & Sons, Inc.
• 2. Droździel et al., 2002, Dynamics of transient interaction of the rolling parts of a rail car with the track. KBN Grant no. 5 T12C 034 22 (in the course of implementation). Warsaw University of Technology, Faculty of Transport.
• 3. Droździel, J., 1995, Experimental approach to wheelset-track interaction in frequency domain. Machine Dynamics Problems, 11, 83-94.
• 4. Esveld, K.C., 2001, Modern Railway Track, Second Edition. MRT-Productions.
• 5. Froehling, R.D., Ebersoehn, W., Scheffel, H., 1996, Measurement and Prediction of Vehicle/Track Interaction Performance, Fourth Vehicle/Infrastructure Interaction Conference, San Diego, California, USA.
• 6. Froehling, R.D., Tomas, M., Ebersoehn, W., 1997, Low frequency dynamic vehicle/track interaction: instrumentation and measurement, Proc. of the 6th International Heavy Haul Conference, Cape Town, S.A., 462-474.
• 7. Radkowski, S., 1995, Low-energy Components of Vibroacoustic Signal as the Basis for Diagnosis of Defect Fonnation (a postdoctoral dissertation), Machine Dynamics Problems, 12.