ANALYTICAL AND EXPERIMENTAL DETERMINATION OF NONLINEAR WHEEL/RAIL GEOMETRIC CONTRAINTS
The wheel/rail geometric constraint relationships for actual wheel and rail profiles are generally nonlinear functions of wheelset lateral displacement. Two of these relationships which strongly influence the lateral dynamics of railway vehicles are the effective conicity and gravitational stiffness. An algorithm for the digital computer is presented that calculates these nonlinear relationships for arbitrary wheel and rail head profiles. An experimental apparatus was developed to determine the location of the wheel/rail contact points as a function of wheelset lateral displacement for arbitrary profiles. Experimental data obtained with this apparatus are presented for various cases which validate the results of the analytical procedure.
- To be presented at the Winter Annual Meeting.
American Society of Mechanical EngineersTwo Park Avenue
New York, NY USA 10016-5990
- Cooperrider, N K
- Law, E H
- Hull, R
- Kadala, P S
- Tuten, J M
- Publication Date: 1975
- Features: Figures; References;
- Pagination: 44 p.
- TRT Terms: Dynamics; Measuring instruments; Rail (Railroads); Railhead; Train track dynamics; Vehicle design; Wear; Wheels
- Uncontrolled Terms: Lateral dynamics; Wheel profiles
- Old TRIS Terms: Rail head profile; Wheel tread design
- Subject Areas: Design; Railroads; Vehicles and Equipment;
- Accession Number: 00128635
- Record Type: Publication
- Source Agency: American Society of Mechanical Engineers
- Files: TRIS
- Created Date: Jan 14 1976 12:00AM