Wheel-rail contact forces measurements using strain gauges applied on the rails
Apstrakt
The paper presents practical application of originally developed method for wayside measurements of wheelrail contact forces using strain gauges and an overview of recently developed similar methods presented by different authors. Presented methods were compared and some of their advantages and disadvantages were identified, including convenience for practical use. Some problems related to preciseness of location of the strain gauges application were emphasized. The main task for achieving reliable and accurate measurement
results using any method is to identify locations on the rail where it is possible to avoid crosstalk and to separate influence of the vertical forces and contact point position on the lateral forces measurements. Although different authors identified such locations, it appeared that in real on-site measurements due to existence of geometry imperfections of the rails, non-uniform foundation stiffness and other influencing conditions, calibration and some post-proces...sing of the recorded data is often needed. Also, in order to obtain reliable results involvement of alternative ways for validation of the obtained results is very welcome including use of alternative methods like identification of the contact point(s) and comparison with calibration curve families.
Ključne reči:
wayside / wheel-rail contact forces measurements / strain gauges / crosstalkIzvor:
The book of Abstract - International Conference of Experimental and Numerical Investigations and New Technologies, 2019, 38-38Izdavač:
- Innovation Center of Faculty of Mechanical Engineering, Belgrade
Finansiranje / projekti:
- Održivost i unapređenje mašinskih sistema u energetici i transportu primenom forenzičkog inženjerstva, eko i robust dizajna (RS-MESTD-Technological Development (TD or TR)-35006)
- Naučno-tehnološka podrška unapređenju bezbednosti specijalnih drumskih i šinskih vozila (RS-MESTD-Technological Development (TD or TR)-35045)
Kolekcije
Institucija/grupa
Mašinski fakultetTY - CONF AU - Milković, Dragan AU - Radulović, Saša AU - Lučanin, Vojkan AU - Tanasković, Jovan AU - Golubović, Snežana PY - 2019 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4219 AB - The paper presents practical application of originally developed method for wayside measurements of wheelrail contact forces using strain gauges and an overview of recently developed similar methods presented by different authors. Presented methods were compared and some of their advantages and disadvantages were identified, including convenience for practical use. Some problems related to preciseness of location of the strain gauges application were emphasized. The main task for achieving reliable and accurate measurement results using any method is to identify locations on the rail where it is possible to avoid crosstalk and to separate influence of the vertical forces and contact point position on the lateral forces measurements. Although different authors identified such locations, it appeared that in real on-site measurements due to existence of geometry imperfections of the rails, non-uniform foundation stiffness and other influencing conditions, calibration and some post-processing of the recorded data is often needed. Also, in order to obtain reliable results involvement of alternative ways for validation of the obtained results is very welcome including use of alternative methods like identification of the contact point(s) and comparison with calibration curve families. PB - Innovation Center of Faculty of Mechanical Engineering, Belgrade C3 - The book of Abstract - International Conference of Experimental and Numerical Investigations and New Technologies T1 - Wheel-rail contact forces measurements using strain gauges applied on the rails EP - 38 SP - 38 UR - https://hdl.handle.net/21.15107/rcub_machinery_4219 ER -
@conference{ author = "Milković, Dragan and Radulović, Saša and Lučanin, Vojkan and Tanasković, Jovan and Golubović, Snežana", year = "2019", abstract = "The paper presents practical application of originally developed method for wayside measurements of wheelrail contact forces using strain gauges and an overview of recently developed similar methods presented by different authors. Presented methods were compared and some of their advantages and disadvantages were identified, including convenience for practical use. Some problems related to preciseness of location of the strain gauges application were emphasized. The main task for achieving reliable and accurate measurement results using any method is to identify locations on the rail where it is possible to avoid crosstalk and to separate influence of the vertical forces and contact point position on the lateral forces measurements. Although different authors identified such locations, it appeared that in real on-site measurements due to existence of geometry imperfections of the rails, non-uniform foundation stiffness and other influencing conditions, calibration and some post-processing of the recorded data is often needed. Also, in order to obtain reliable results involvement of alternative ways for validation of the obtained results is very welcome including use of alternative methods like identification of the contact point(s) and comparison with calibration curve families.", publisher = "Innovation Center of Faculty of Mechanical Engineering, Belgrade", journal = "The book of Abstract - International Conference of Experimental and Numerical Investigations and New Technologies", title = "Wheel-rail contact forces measurements using strain gauges applied on the rails", pages = "38-38", url = "https://hdl.handle.net/21.15107/rcub_machinery_4219" }
Milković, D., Radulović, S., Lučanin, V., Tanasković, J.,& Golubović, S.. (2019). Wheel-rail contact forces measurements using strain gauges applied on the rails. in The book of Abstract - International Conference of Experimental and Numerical Investigations and New Technologies Innovation Center of Faculty of Mechanical Engineering, Belgrade., 38-38. https://hdl.handle.net/21.15107/rcub_machinery_4219
Milković D, Radulović S, Lučanin V, Tanasković J, Golubović S. Wheel-rail contact forces measurements using strain gauges applied on the rails. in The book of Abstract - International Conference of Experimental and Numerical Investigations and New Technologies. 2019;:38-38. https://hdl.handle.net/21.15107/rcub_machinery_4219 .
Milković, Dragan, Radulović, Saša, Lučanin, Vojkan, Tanasković, Jovan, Golubović, Snežana, "Wheel-rail contact forces measurements using strain gauges applied on the rails" in The book of Abstract - International Conference of Experimental and Numerical Investigations and New Technologies (2019):38-38, https://hdl.handle.net/21.15107/rcub_machinery_4219 .