Measurement of vertical track modulus using space curves

Details Measurement of vertical track modulus using space curves Measurement of vertical track modulus using space curves

2011-04-05

2011-04-05

Bui, Bryan (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Orientation or position

C356S614000

Reexamination Certificate

active

07920984

ABSTRACT:
An on-board, non-contact measurement system and method is disclosed for measuring track quality, vertical track stiffness and vertical track modulus for a portion of track underlying the rail vehicle. The system comprises two or more position sensors for determining the position profile of the track and a computation system for determining the vertical displacement of the track.

REFERENCES:
patent: 4010636 (1977-03-01), Clark et al.
patent: 4283953 (1981-08-01), Plona
patent: 4435984 (1984-03-01), Gruber
patent: 5020371 (1991-06-01), Panetti
patent: 5335184 (1994-08-01), Hildebrand
patent: 5341683 (1994-08-01), Searle
patent: 5386727 (1995-02-01), Searle
patent: 5390544 (1995-02-01), Madras
patent: 5721685 (1998-02-01), Holland et al.
patent: 5753808 (1998-05-01), Johnson
patent: 6044698 (2000-04-01), Bryan
patent: 6119353 (2000-09-01), Gronskov
patent: 6430875 (2002-08-01), Clark et al.
patent: 6647891 (2003-11-01), Holmes et al.
patent: 6742392 (2004-06-01), Gilmore et al.
patent: 7403296 (2008-07-01), Farritor et al.
patent: 7755774 (2010-07-01), Farritor et al.
patent: 2004/0003662 (2004-01-01), Kenderian et al.
patent: 2005/0072236 (2005-04-01), Heyman et al.
patent: 2006/0136152 (2006-06-01), Takahashi
patent: 2008/0228436 (2008-09-01), Farritor
patent: 2009/0070064 (2009-03-01), Farritor et al.
patent: 07174643 (1995-07-01), None
patent: 1801844 (1993-03-01), None
Arnold, R. et al. “Measurement of Vertical Track Modulus From a Moving Railcar,” Proceedings of the AREMA 2006 Annual Conference, Louisville, KY, Sep. 17, 2006.
Lu, S. et al., “On the Relationship Between Load and Deflection in Railroad Track Structure,” Proceedings of the AREMA 2008 Annual Conference, Salt Lake City, UT, Sep. 21, 2008.
Lu, Sheng et al., “Exception Criteria in Vertical Track Deflection and Modulus”, 2007 ASME/IEEE Joint Rail Conference & Internal Combustion Engine Spring Technical Conference, Mar. 13, 2007, Pueblo, CO USA, 12 pages.

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