Simulation of emergency collision of passenger train equipped with passive safety system with obstacle
Journal Title: Технічна механіка, Техническая механика, Technical Mechanics - Year 2014, Vol 4, Issue 4
Abstract
Rail incidents take place throughout the world. Constant improvement of precautions does not alleviate problems of safe traffic. Because of this, the development and creation of railway new-generation vehicles with efficient systems of passive safety are notable problems in management of the high-speed traffic of passenger cars. Mathematical modelling dynamic loads of the passenger car equipped with energy-absorbing devices at ultra-normal collisions allows the estimation of designs at the stage of the design and the conduction of numerical experiments without high capital expenses. An emergency collision on a railway with 1520 mm gauge is simulated by the computer. It is shown that it is essential to equip a locomotive and cars with energy-absorbing devices for safety of the locomotive crew and passengers and a lowering the level of vehicles accelerations and longitudinal compressing forces in intercar coupling at an emergency collision between the train and an obstacle. To simulate numerically test collision scenarios for the passenger train and an obstacle, cars of which are equipped with movable gapless couplers, a mathematical model for dynamics of the train at an ultra-normal collision is improved by describing a force characteristic of the intercar coupling, taking into account an initial tightening absorbing devices, a function of the gapless coupler and the vehicle design as well as devices of the passenger safety system. An improved mathematical model can be used for a numerical simulation of test scenarios of a collision between a new-generation passenger train and an obstacle in order to develop out the passive safety system.
Authors and Affiliations
N. Naumenko, I. Khizha
Keywords
Related Articles
- EP ID EP359234
- DOI -
- Views 49
- Downloads 0
Applications of artificial neuron networks for solution of an inverse problem of gas dynamics of compressor cas-cades
This paper presents a solution of an inverse problem of the gas dynamics of compressor cascades using arti-ficial neural networks (ANN) by summarizing the experimental data resulting from plane cascades purging. The tech...
Model of motion of small radial space tetheredsystem by the action of aerodynamic moment
The possibility of using the electrodynamic space tethered systems (EDSTS) for deorbiting the space debris is currently being studied extensively. However, a preliminary analysis demonstrated the instability of a radial...
Regularities of deformation of elastic massifs
The analysis of the existing solutions for the elasticity theory is demonstration of their serious disadvantages resulted from the application of imperfect physical dependences. In order to eliminate this problem and to...
Smelaya T.
Discretization of the computational domain has an important impact on the solution of problems on the rarified gas dynamics. An appropriate selection of the type of the grid used is the pressing problem for statistical m...
On the method of simulation of uncertainties of technical and economical data for problems of evaluation of research projects
The paper presents a formalized method of the simulation of uncertainties of the numerical reference data applicable to calculations of the technical and economical parameters of a research project and realization of the...