The effect of up-armoring of the high-mobility multi-purpose wheeled vehicle (HMMWV) on the off-road vehicle performance

M. Grujicic; H. Marvi; G. Arakere; W.C. Bell; I. Haque

doi:10.1108/15736101011068019

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Multidiscipline Modeling in Materials and Structures

ISSN: 1573-6105

Online from: 2005

Subject Area: Mechanical & Materials Engineering

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The effect of up-armoring of the high-mobility multi-purpose wheeled vehicle (HMMWV) on the off-road vehicle performance

Document Information:
Title:	The effect of up-armoring of the high-mobility multi-purpose wheeled vehicle (HMMWV) on the off-road vehicle performance
Author(s):	M. Grujicic, (Department of Mechanical Engineering, International Center for Automotive Research CU-ICAR, Clemson University, Clemson, South Carolina, USA), H. Marvi, (Department of Mechanical Engineering, International Center for Automotive Research CU-ICAR, Clemson University, Clemson, South Carolina, USA), G. Arakere, (Department of Mechanical Engineering, International Center for Automotive Research CU-ICAR, Clemson University, Clemson, South Carolina, USA), W.C. Bell, (Department of Mechanical Engineering, International Center for Automotive Research CU-ICAR, Clemson University, Clemson, South Carolina, USA), I. Haque, (Department of Mechanical Engineering, International Center for Automotive Research CU-ICAR, Clemson University, Clemson, South Carolina, USA)
Citation:	M. Grujicic, H. Marvi, G. Arakere, W.C. Bell, I. Haque, (2010) "The effect of up-armoring of the high-mobility multi-purpose wheeled vehicle (HMMWV) on the off-road vehicle performance", Multidiscipline Modeling in Materials and Structures, Vol. 6 Iss: 2, pp.229 - 256
Keywords:	Finite element analysis, Modelling, Road vehicles, Simulation
Article type:	Research paper
DOI:	10.1108/15736101011068019 (Permanent URL)
Publisher:	Emerald Group Publishing Limited
Acknowledgements:	The material presented in this paper is based on the work supported by a research contract with the Automotive Research Center at the University of Michigan and TARDEC. The authors are indebted to Professor Georges Fadel for the support and a continuing interest in the present paper.
Abstract:	Purpose – A parallel finite-element/multi-body-dynamics investigation is carried out of the effect of up-armoring on the off-road performance of a prototypical high-mobility multipurpose-wheeled vehicle (HMMWV). The paper seeks to investigate the up-armoring effect on the vehicle performance under the following off-road maneuvers: straight-line flatland braking; straight-line off-angle downhill braking; and sharp left turn. Design/methodology/approach – For each of the above-mentioned maneuvers, the appropriate vehicle-performance criteria are identified and the parameters used to quantify these criteria are defined and assessed. The ability of a computationally efficient multi-body dynamics approach when combined with a detailed model for tire/soil interactions to yield results qualitatively and quantitatively consistent with their computational counterparts obtained using computationally quite costly finite element analyses is assessed. Findings – The computational results obtained clearly reveal the compromises in vehicle off-road performance caused by the up-armoring employ to improve vehicle blast and ballistic protection performance/survivability. The results obtained are also analyzed and explained in terms of general field-test observations in order to judge physical soundness and fidelity of the present computational approaches. Originality/value – The paper offers insights into the effects of up-armoring of the HMMWV on off-road vehicle performance.