Browsing Scientific Publications in Engineering Sciences by Author "Pawlus, Witold"
Now showing items 1-10 of 10
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A fuzzy logic approach to modeling a vehicle crash test
Pawlus, Witold; Karimi, Hamid Reza; Robbersmyr, Kjell G. (Journal article; Peer reviewed, 2012)This paper presents an application of fuzzy approach to vehicle crash modeling. A typical vehicle to pole collision is described and kinematics of a car involved in this type of crash event is thoroughly characterized. The ... -
Development of lumped-parameter mathematical models for a vehicle localized impact
Pawlus, Witold; Karimi, Hamid Reza; Robbersmyr, Kjell G. (Journal article; Peer reviewed, 2011)In this paper, we propose a method of modeling for vehicle crash systems based on viscous and elastic properties of the materials. This paper covers an influence of different arrangement of spring and damper on the models’ ... -
Further Results on Mathematical Models of Vehicle Localized Impact
Pawlus, Witold; Nielsen, Jan Eivind; Karimi, Hamid Reza; Robbersmyr, Kjell G. (Chapter; Peer reviewed, 2010)In this paper, we propose a method of modeling for vehicle crash systems based on viscous and elastic properties of the materials. This paper covers an influence of different arrangement of spring and damper on the models? ... -
Influence of unloading modes of spring-mass-damper models on vehicle to pole collision simulation results
Karimi, Hamid Reza; Pawlus, Witold; Robbersmyr, Kjell G. (Chapter; Peer reviewed, 2011)Our intention, in this brief note, is to investigate what influence the viscoelastic models' unloading properties have on models' accuracy of representing vehicle crash event. Two types of simple spring-mass-damper systems ... -
Investigation of vehicle crash modeling techniques: theory and application
Pawlus, Witold; Karimi, Hamid Reza; Robbersmyr, Kjell G. (Journal article; Peer reviewed, 2013)Creating a mathematical model of a vehicle crash is a task which involves considerations and analysis of different areas which need to be addressed because of the mathematical complexity of a crash event representation. ... -
Mathematical modeling and parameters estimation of a car crash using data-based regressive model approach
Pawlus, Witold; Robbersmyr, Kjell G.; Karimi, Hamid Reza (Journal article; Peer reviewed, 2011)n this paper we present the application of regressive models to simulation of car-to-pole impacts. Three models were investigated: RARMAX, ARMAX and AR. Their suitability to estimate physical system parameters as well as ... -
Mathematical modeling of a vehicle crash test based on elasto-plastic unloading scenarios of spring-mass models
Pawlus, Witold; Karimi, Hamid Reza; Robbersmyr, Kjell G. (Journal article; Peer reviewed, 2011)This paper investigates the usability of spring which exhibit nonlinear force-deflection characteristic in the area of mathematical modeling of vehicle crash. We present a method which allows us to obtain parameters of the ... -
Mathematical modeling of a vehicle crash test based on elasto-plastic unloading scenarios of spring-mass models
Pawlus, Witold; Karimi, Hamid Reza; Robbersmyr, Kjell G. (Journal article; Peer reviewed, 2010)This paper investigates the usability of spring which exhibit nonlinear force-deflection characteristic in the area of mathematical modeling of vehicle crash. We present a method which allows us to obtain parameters of the ... -
The performance investigation of viscoelastic hybrid models in vehicle crash event representation
Pawlus, Witold; Robbersmyr, Kjell G.; Karimi, Hamid Reza; Fanghol, Arnfinn (Chapter; Peer reviewed, 2011)This paper presents application of physical models composed of springs, dampers and masses joined together in various arrangements to simulation of a real car collision with a rigid pole. Equations of motion of those systems ... -
The performance investigation of viscoelastic hybrid models in vehicle crash event representation
Pawlus, Witold; Robbersmyr, Kjell G.; Karimi, Hamid Reza; Fanghol, Arnfinn (Chapter; Peer reviewed, 2011)This paper presents application of physical models composed of springs, dampers and masses joined together in various arrangements to simulation of a real car collision with a rigid pole. Equations of motion of those systems ...