TRAIN ELEVATED GUIDEWAY INTERACTIONS

The report describes a computer program modeling the response of an elevated guideway to the passing of a high-speed train. The train is modeled by a lumped parameter dynamic system. Specifically, the model consists of a two-vehicle train, traveling at constant velocity, over a series of similar, simply-supported bridges which may have initial camber. The response of the bridge is represented as the sum of normal mode responses. These are coupled to the equations of motion governing the response of the vehicles. The resultant system of equations is numerically integrated from arbitrary initial conditions. For evenly-spaced time intervals, depending on the size of the integration step chosen, the program calculates and prints out the displacement of centers of gravity of the cars, the wheel displacements, and the displacements of the truck masses, as well as the first and second time derivatives of these motion parameters. The output also includes the wheel loads and beam deflections as functions of time. The program has a plotting capability and a restart capability. It also has several options with respect to the modeling of the vehicles. (Author)

Supplemental Notes:
- Report on High - Speed Ground Transportation Systems Engineering Study.
Corporate Authors:
TRW Systems Group

Washington Operations
McLean, VA United States 22101
Authors:
- Kaplan, A
- Lipner, N
- Roberts, F B
- Strom, R O
Publication Date: 1970-2

Media Info

Pagination: 141 p.

Subject/Index Terms

TRT Terms: Bridges; Guideways; High speed rail; Intelligent transportation systems; Simulation
Old TRIS Terms: Advanced systems
Subject Areas: Bridges and other structures; Operations and Traffic Management; Railroads; Terminals and Facilities;

Filing Info

Accession Number: 00039177
Record Type: Publication
Source Agency: National Technical Information Service
Report/Paper Numbers: 06818-6036-RO-00
Contract Numbers: DOT-C-353-66
Files: TRIS
Created Date: Nov 24 1973 12:00AM