DYNALIST II: A Computer Program for Stability and Dynamic Response Analysis of Rail Vehicle Systems: Volume III: Technical Report Addendum

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Report Number: FRA-OR&D-75.22.III
Author(s): Bronowicki, Allen, Hasselman, T. K.
Corporate Author(s): J. H. Wiggins Company
Date of Publication: 1976-07
Contract: DOT-TSC-990
DoD Task:
PB Number: PB258193
Identifier: PB258193

Abstract:
Several new capabilities have been added to the DYNALIST II computer program. These include: (1) a component matrix generator that operates as a 3-D finite element modeling program where elements consist of rigid bodies, flexural bodies, wheelsets, suspension elements and point masses assembled on a nodal skeleton; (2) a periodic and transient time-history response capability; (3) a component update capability for parametric studies; (4) an orthogonality check on component and system complex eigenvectors; (5) an option for improving low-frequency convergence under modal trunction, (6) a more general sine-amplitude forcing function capability; (7) automatic phase lag generation; (8) user-controlled scaling options on all response plots; and a number of additional minor improvements. A Technical Report Addendum and a completely revised User's Manual document these changes to the previous version of DYNALIST II.

Provenance: S. Kumar

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