GYROSCOPICALLY COMPENSATED VERTICAL PENDULUM FOR MEASURING GUIDEWAY CANT FROM A MOVING VEHICLE
A complete dynamic analysis is carried out for the gyroscopically compensated vertical pendulums used in the railroad test cars built by A. J. Amsler and Company and by Matisa. The analysis shows that the system may become unstable in certain speed ranges and that complicated damping schemes are required to maintain the stable behavior of the system. A modified design concept is presented which mathematically improves the basic Amsler concept and results in a system which would be simpler to implement and would exhibit a uniformly stable dynamic behavior for all speeds. The system can be employed in a moving vehicle that measures guideway cant (or superelevation), and it will be capable of maintaining a vertical reference that is unaffected by grade, vehicle curving, or vehicle speed variations.
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Supplemental Notes:
- Presented at the IAS (IEEE Industrial Applications Society) 10th Annual Meeting, Conference Record, Sept. 28-Oct. 2 1975, in Atlanta, Georgia.
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Corporate Authors:
Institute of Electrical and Electronics Engineers (IEEE)
3 Park Avenue, 17th Floor
New York, NY United States 10016-5997 -
Authors:
- Yang, T L
- Conference:
- Publication Date: 1975
Media Info
- Pagination: p. 523-526
Subject/Index Terms
- TRT Terms: Guideways; Inspection; Inspection cars; Instrumentation; Measuring instruments; Railroad facilities; Railroad tracks; Roughness; Superelevation; Surveying
- Old TRIS Terms: Guideway roughness; Track geometry survey device; Track inspection
- Subject Areas: Highways; Railroads; Terminals and Facilities;
Filing Info
- Accession Number: 00152792
- Record Type: Publication
- Source Agency: Engineering Index
- Report/Paper Numbers: Conf Paper
- Files: TRIS
- Created Date: May 31 1977 12:00AM