Optimisation of Railway Polynomial Transition Curves with Different Number of Terms
Journal Title: Logistics and Transport - Year 2014, Vol 22, Issue 2
Abstract
This paper presents the results of research of influence of degree and number of polynomial terms of railway transition curves (TCs) on their dynamical properties. The research performed for needs of this work are planned numeric tests. The search for the proper shape means the evaluation of the curve properties based on chosen dynamical quantity and generation of such shape with the use of mathematically understood optimisation methods. For the needs of this work advanced vehicle model, dynamical track-vehicle and vehicle-passenger interactions as well as optimisation methods were exploited. The subject of the analysis are odd degree polynomial transition curves of the 5th, 7th, 9th and 11th degree. For each degree of the polynomial a range of acceptable number of polynomial terms was determined. One dynamical quantity - minimum of integral of vehicle body lateral acceleration - being the results of simulation of railway vehicle advanced model is exploited in the determination of quality function (QF).
Authors and Affiliations
Piotr Woźnica
Keywords
Related Articles
- EP ID EP167685
- DOI -
- Views 31
- Downloads 0
Tradycyjne kupowanie a strategia zakupów
The reason for considering the above mentioned contepts was experience gained by the author during internships in one of the polish firms engaded in professional consulting in the field of purchising process optimalisati...
The Conceptual Algorithm of the International Multimodal Transport (CAIMT)
The presented paper comes as a summary of a theoretical work presenting an original algorithm describing International Multimodal Transport (IMT) mechanisms and processes. Since containers appeared in early 1960s on the...
Regional disparities, critical items and detrminants of road transportation development
The article is aimed on regional disparities and risk management in road transportation. On details of road infrastructure of Slovak Republic shows functions, operating efficiency, strong and weak aspects of road transpo...
Struktura łańcucha dostaw pojazdów samochodowych w relacji producent–odbiorca finalny na przykładzie firmy leasingowej
This article is about formal (mathematical) version of chain supply from car factory to local dealers. The first step was a scheme this process, called model and trying to write formal definitions every points and relati...
Uwagi do istoty strategii rozwoju i jej kształtowania w przedsiębiorstwie
In this publictaion the authors show the essential point of the strategy and stages of its creating in relation to the opinions of well-known theorists of the organisation and management science.