Heave-Pitch-Roll Dynamics of a Vehicle with a Variable Velocity Over a Non-Homogeneously Profiled Flexible Track
✍ Scribed by D. Yadav; H.C. Upadhyay
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 328 KB
- Volume
- 164
- Category
- Article
- ISSN
- 0022-460X
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✦ Synopsis
An analysis of the response characteristic evaluation of a vehicle moving over a flexible track is presented, with a heave-pitch-roll model of the vehicle. The track foundation is flexible and has distributed mass, stiffness and damping. The road roughness may be nonhomogeneous in the longitudinal direction and unsymmetrical in the width direction. The vehicle velocity may be variable. An available method with a two-point input has been extended to a four-point input, and a closed form expression has been obtained for the second order statistics of the response. The use of different types of sleepers is common on railway tracks, leading to variations in the foundation properties. The dynamic behaviour is expected to be sensitive to these changes. The effects of some typical sleepers on the system response have been obtained and compared.