Proceedings of the Annual Convention 91 (1990)
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In general the tests showed: • Good results on both tangent and curved rail segments, with an accuracy range of ± 10-20 kips longitudinal force (which is equivalent to a ±4-8 deg-F neutral temperature change) • For curved rail segments, measurement concept/car design needs to be adjusted for different vertical wheel loads on the high and low rails due to superelevation.
• Excellent agreement with theoretical predictions In conclusion, in view of these results and analytical studies, the propose...d technique based on the rail uplift-bending response appears to provide a viable method for rail longitudinal force measurement and neutral temperature determination. Additional validation tests are planned at TTC this summer to finalize the technique accuracy and in-service applicability.
140#RAIL 7 V (Kips) 20 Truck center spacing = 450.25" Axle spacing = 70.0" Wheel load = 21,000 1b -100 -75 -50 -25 TENSION 136#RAIL *- P (Kips) 25 50 75 -lOO COMPRESSION Figure 3. Rail size influence on uplift force vs longitudinal force for a 2.0 inch uplift deflection Your Hose Abrasion '■'
What to read after Proceedings of the Annual Convention 91 (1990)?
You can find similar books in the "Read Also" column, or choose other free books by American Railway Engineering Association to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
In general the tests showed: • Good results on both tangent and curved rail segments, with an accuracy range of ± 10-20 kips longitudinal force (which is equivalent to a ±4-8 deg-F neutral temperature change) • For curved rail segments, measurement concept/car design needs to be adjusted for different vertical wheel loads on the high and low rails due to superelevation.
• Excellent agreement with theoretical predictions In conclusion, in view of these results and analytical studies, the propose...d technique based on the rail uplift-bending response appears to provide a viable method for rail longitudinal force measurement and neutral temperature determination. Additional validation tests are planned at TTC this summer to finalize the technique accuracy and in-service applicability.
140#RAIL 7 V (Kips) 20 Truck center spacing = 450.25" Axle spacing = 70.0" Wheel load = 21,000 1b -100 -75 -50 -25 TENSION 136#RAIL *- P (Kips) 25 50 75 -lOO COMPRESSION Figure 3. Rail size influence on uplift force vs longitudinal force for a 2.0 inch uplift deflection Your Hose Abrasion '■'
What to read after Proceedings of the Annual Convention 91 (1990)?
You can find similar books in the "Read Also" column, or choose other free books by American Railway Engineering Association to read onlineMoreLess
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