Design of a vehicle barrier

Download
index.pdf
2013
Kaplan, Engin Metin
Show full item record
133
views
76
downloads
In this study, the crash of a medium heavy vehicle onto a designed vehicle barrier is studied numerically. Structural integrity of the vehicle barrier is studied by nonlinear dynamic methods under the loading conditions which is defined in the standards. Nastran and Ls-Dyna which are commercial softwares are used to solve the problem. Outer geometry determination, allignment of the inner part and material properties of the vehicle barrier are studied linearly to yield design parameters. Best design parameters are determined to achieve the most structurally optimized vehicle barrier. Strain and stress values of the vehicle barrier are obtained by solving the partial differantial equations.
Machine design., Mechanical drawing., Elastoplasticity., Vehicle Barrier Design.
http://etd.lib.metu.edu.tr/upload/12616218/index.pdf
https://hdl.handle.net/11511/23005
Graduate School of Natural and Applied Sciences, Thesis

Suggestions

Analysis and Design of Passive and Active Interconnected Hydro Pneumatic Suspension Systems in Roll Plane
Sağlam, Ferhat; Ünlüsoy, Yavuz Samim (2015-05-19)
In this study, analysis and design of a half car model in roll plane with passive and active unconnected and interconnected Hydro-Pneumatic (HP) suspension systems are made. An interconnection configuration with a connection between the piston side oil volume and rod side oil volume of the right and left suspensions, respectively, is considered. The performance of the active unconnected HP and interconnected HP suspension systems are compared in terms of ride comfort and handling. Nonlinear mathematical mod...
Prediction of automobile tire cornering force characteristics by finite element modeling and analysis
Tönük, Ergin; Ünlüsoy, Yavuz Samim (2001-05-01)
In this study, a detailed finite element model of a radial automobile tire is constructed for the prediction of cornering force characteristics during the design stage. The nonlinear stress-strain relationship of rubber as well as a linear elastic approximation, reinforcement, large displacements, and frictional ground contact are modeled. Validity of various simplifications is checked. The cornering force characteristics obtained by the finite element tire model are verified on the experimental setup const...
Computation of drag force on single and close-following vehicles
Örselli, Erdem; Çetinkaya, Tahsin Ali; Department of Mechanical Engineering (2006)
In this study, application of computational fluid dynamics to ground vehicle aerodynamics was investigated. Two types of vehicle models namely, Ahmed Body and MIRA Notchback Body and their scaled models were used. A commercial software "Fluent" was used and the effects of implementing different turbulence models with wall functions were observed. As a result, an appropriate turbulence model was selected to use in the study. The drag forces, surface pressure distributions and wake formations were investigate...
Simulation of Dynamic Operation in Salient Pole Synchronous Machines
Dordea, Toma; Munteanu, Radu; Campeanu, Aurel (2011-09-10)
The design of today's high performance synchronous motors must take into account not only the steady state but also practically inevitable dynamic regimes. In such conditions an accurate predetermination of the parameters and constructive solution by modeling and simulation of the given dynamic operation, becomes a mandatory step. In this aim, in the present paper a novel mathematical model of the high power salient pole synchronous machine (SPSM) is elaborated. We proposed to consider especially the effect...
Design and simulation of an integrated active yaw control system for road vehicles
Tekin, Goekhan; Ünlüsoy, Yavuz Samim (2010-01-01)
In this paper, design methodology and simulation results of an active yaw control system For road vehicles arc presented. The main objectives of the yaw control system arc to estimate the desired yaw behaviour of file vehicle according to the demand of file driver by means of a two degree-of-freedom vehicle model and track this desired yaw rate while considering vehicle steerability parameters. Based on vehicle yaw rate error and vehicle sideslip angle, the controller system applies brake torques to individ...
Citation Formats
E. M. Kaplan, “Design of a vehicle barrier,” M.S. - Master of Science, Middle East Technical University, 2013.
METU IIS - Integrated Information Service open@metu.edu.tr