TRAIN RESONANT CAR-BODY ROCKING DETECTOR SYSTEM
A significant number of freight cars have a relatively high center of gravity and a truck center distance close to the 39-foot standard rail joint spacing. When operated near the resulting resonant speed of 18 to 20 mph on a curved track, such cars may derail. A hydraulic sensor is described in the patent application which detects and registers the resonant rocking motion of a train car and activates the brake system to stop the train prior to possible derailment due to wheel rock-off from the track.
- Government-owned invention available for licensing. Copy of application available NTIS.
Department of the NavyConstitution Avenue and 18th Street, NW
Washington, DC United States
- Swaim, F H
- Publication Date: 1974-7-25
- Pagination: 15 p.
- TRT Terms: Actuators; Braking; Deceleration; Derailments; Detectors; Hydraulic equipment; Patents; Piezoelectric materials; Prevention; Railroad cars; Rocking; Rolling; Sensors; Train track dynamics
- Old TRIS Terms: Rock and roll
- Subject Areas: Railroads; Security and Emergencies;
- Accession Number: 00093773
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: PAT-APPL-491 983 Patent
- Files: TRIS
- Created Date: Feb 4 1976 12:00AM