Journal ArticleDOI
On the Dynamic Behaviour of a Powered Bogie at High Speed
TLDR
In this article, the dynamic behavior of the locomotive was analyzed by linear and nonlinear computations and compared numerical results to measurements with respect to stability and random response, using linearized laws of contact mechanics and of spring and damper characteristics.Abstract:
SUMMARY For high speed railway traffic the “ICE” train is being developed in the Federal Republic of Germany. The ICE consists of two Bo'Bo' power cars and up to three coaches in between. The innovative powered bogies with alternatively coupled traction motors were field tested on the dieselelectric locomotive DE 2500 UmAn up to 250 km/h. Extensive measurements of the vehicle's response, the rail inputs and the wheel and rail profiles were documented. Following the field tests we analysed the dynamic behaviour of the locomotive by linear and nonlinear computations and compared numerical results to measurements with respect to stability and random response. Linear analyses use linearized laws of contact mechanics and of spring and damper characteristics. Nonlinear methods of limit cycle calculation and statistical linearization perform the quasilinearization in the course of the numerical process. The agreement between field tests and computer-aided studies was satisfactory and allowed us to complete our d...read more
Citations
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Journal ArticleDOI
General Purpose Vehicle System Dynamics Software Based on Multibody Formalisms
Willi Kortüm,Werner Schiehlen +1 more
TL;DR: The state-of-the-art general purpose vehicle system dynamics software is reviewed in this article, where two representative programs, MEDYNA and NEWEUL, are described with respect to modeling options, computational methods, software engineering as well as interfaces to other software.
Journal ArticleDOI
Analysis and simulation of rail and road vehicles with the program medyna
TL;DR: In this paper, a general purpose program for the analysis and design of mechanical systems is presented, with a brief description of the underlying theory and of the system analysis features is given, and two representative examples in the program's main application area, vehicle dynamics, are presented in order to demonstrate its capabilities.
Journal ArticleDOI
Steps to optimize high-speed curving performance of the ice
J. M. Lipsius,R. Menssen +1 more
TL;DR: In this paper, a new type of traction bogie for high-speed traction vehicles has been developed, which is tested on the IC-Experimental and proved at speeds up to 406 km/h DB's new Hannover-Wurzburg line.
Book ChapterDOI
Analysis of Nonlinear Stochastic Multibody Systems
K. Popp,P. C. Müller,H. Windrich +2 more
TL;DR: Improved modeling of today’s technical problems often leads to nonlinear multibody systems, particularly wheel-rail systems for high-speed transportation, which show severe drawbacks in the analysis using either Monte- Carlo simulation or equivalent statistical linearization methods.
Journal ArticleDOI
Failure mode investigation and re-design of heavy-duty commercial vehicle bogie bracket
TL;DR: The suspension is the most essential system to support the load and road shock in heavy-duty commercial vehicles as discussed by the authors, which plays a significant role in commodity logistics, and the suspension is one of the most important components of a commercial vehicle.
References
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Book
Multiple-Input Describing Functions and Nonlinear System Design
TL;DR: The theory of automatic control has been advanced in important ways during recent years, particularly with respect to stability and optimal control, but these theories do not, however, lay to rest all questions of importance to the control engineer.
Proceedings ArticleDOI
Efficient multivariable frequency response computations
TL;DR: In this article, an efficient algorithm for the reliable computation of frequency response matrices of the form P(j\omegaI-A)^{-1}Q was presented.
Journal ArticleDOI
Berechnungsverfahren für stochastische Fahrzeugschwingungen
TL;DR: In this article, the analyzes solcher Fahrweg-Fahrzeug-Mensch-Systeme bedarf einer umfassenden Untersuchung der zufalligen Fahrerwegunebenheiten, der nichtlinearen Fahrzeugsdynamik and der menschlichen Schwingungswahrnehmung.
Journal ArticleDOI
Analysis and simulation of rail and road vehicles with the program medyna
TL;DR: In this paper, a general purpose program for the analysis and design of mechanical systems is presented, with a brief description of the underlying theory and of the system analysis features is given, and two representative examples in the program's main application area, vehicle dynamics, are presented in order to demonstrate its capabilities.
Journal ArticleDOI
Nonlinear Analysis of Rail Vehicle Forced Lateral Response and Stability
J. Karl Hedrick,A. V. Arslan +1 more
TL;DR: In this paper, the authors present a statistical linearization method for rail vehicles that is capable of predicting the response of the vehicle to statistical track irregularities as well as the onset of hunting.
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