Identification of inertia tensor of vehicles

Kutluay, Emir
The aim of this thesis is to develop a methodology for obtaining mass properties of a vehicle using specific test rig. Investigated mass properties are the mass, location of center of gravity and the inertia tensor. Accurate measurement of mass properties of vehicles is crucial for vehicle dynamics research. The test rig consists of a frame on which the vehicle is fixed and which is suspended from the ceiling of the laboratory using steel cables. Mass and location of center of gravity are measured using the data from the test rig in equilibrium position and basic static equations. Inertia tensor is measured using the data from dynamical response of the system. For this purpose an identification routine which employs prediction error method is developed using the builtin functions from the System Identification Toolbox of MATLAB®. The experiment was also simulated using Simmechanics Toolbox of MATLAB®. Identification code is verified using the results of the experiment simulations for various cases.


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The aim of this thesis is to develop a methodology for obtaining an optimum configuration for the aeroballistic range models. In the design of aeroballistic range models, there are mainly three similarity requirements to be matched between the model and the actual munition: external geometry, location of the centre of gravity and the ratio of axial mass moment of inertia to the transverse mass moment of inertia. Furthermore, it is required to have a model with least possible weight, so that the required tes...
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Nakiboğlu, Güneş; Sert, Cüneyt; Department of Mechanical Engineering (2007)
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Citation Formats
E. Kutluay, “Identification of inertia tensor of vehicles,” M.S. - Master of Science, Middle East Technical University, 2007.