Identification of inertia tensor of vehicles

Download

index.pdf

Date

2007

Author

Kutluay, Emir

Metadata

Show full item record

Item Usage Stats

271
views

106
downloads

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.

Subject Keywords

Mechanical Engineering.

URI

http://etd.lib.metu.edu.tr/upload/3/12608796/index.pdf
https://hdl.handle.net/11511/16762

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Design scaling of aeroballistic range models Kutluay, Ümit; Balkan, Raif Tuna; Department of Mechanical Engineering (2004) 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...
Development of a micro-fabrication process simulator for micro-electro-mechanical systems(mems) Yıldırım, Alper; Dölen, Melik; Department of Mechanical Engineering (2005) The aim of this study is to devise a computer simulation tool, which will speed-up the design of Micro-Electro-Mechanical Systems by providing the results of the micro-fabrication processes in advance. Anisotropic etching along with isotropic etching of silicon wafers are to be simulated in this environment. Similarly, additive processes like doping and material deposition could be simulated by means of a Cellular Automata based algorithm along with the use of OpenGL library functions. Equipped with an inte...
Experimental investigation of a spherical solar collector Bakır, Öztekin; Yamalı, Cemil; Department of Mechanical Engineering (2006) The purpose of this study is to investigate the performance of a spherical solar collector by using numerical and experimental methods. For this analysis, equations were obtained by choosing appropriate control volumes in the system and applying The First Law of Thermodynamics. The experiments were realized at four different mass flow rates and non-flow situation. For the numerical simulation of the system, a computer program in Mathcad was written. Another computer program in Mathcad was written for the va...
Development of an educational CFD software for two dimensional incompressible flows Nakiboğlu, Güneş; Sert, Cüneyt; Department of Mechanical Engineering (2007) The main purpose of this research is to develop a Computational Fluid Dynamics (CFD) software to be used as an educational tool in teaching introductory level fluid mechanics and CFD courses. The software developed for this purpose is called Virtual Flow Lab. It has a graphical user interface (GUI) that enables basic pre-processing, solver parameter and boundary condition setting and post-processing steps of a typical CFD simulation. The pressure-based solver is capable of solving incompressible, laminar, s...
Jk-integral formulation and implementation for thermally loaded orthotropic functionally graded materials Arman, Eyüp Erhan; Dağ, Serkan; Department of Mechanical Engineering (2008) The main aim of this study is to utilize a Jk-integral based computational method in order to calculate crack tip parameters for orthotropic functionally graded materials (FGMs). The crack is subjected to mixed mode thermal loading. Mixed mode thermal fracture analysis requires the calculation of mode-I and mode-II stress intensity factors (KI ,KII ). In addition to stress intensity factors, energy release rate and T-stress are calculated by means of Jk-integral. Jk-integral is defined as a line integral ov...

Citation Formats

E. Kutluay, “Identification of inertia tensor of vehicles,” M.S. - Master of Science, Middle East Technical University, 2007.