Abstract
Present work deals with the design, development of auxiliary structure mounted on high mobility off-road 8x8 wheeled military logistic vehicles or troop trucks. Such auxiliary structures offer a levelled base to the shelters carrying cargo ranging from sophisticated electronic equipment, tracking system, troops, weapons, arms and ammunition which require special environment to function. Design traits as clearance between the shelter and skids, intense load pattern, approach, departure and ramp angles and their effects on auxiliary structure design are presented. Design factors such as load distribution on front and rear axles, shelter height, ground clearance and their effects on the structure design are discussed. Finite element analysis (FEA) technique is utilized to simulate the behaviour of the auxiliary structure. Formulated auxiliary structure configuration possess exceptional resistance against twisting and bending due to introduction of the intense load pattern. Different configurations and variant load response of this structure is figured out using FEA simulation procedure. Application of statistical and experimental strain measurement techniques for design validation of the formulated structure is presented. Wilcoxon signed rank test is employed for evaluation of experimental and finite element outcomes.
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