Jai Thomas

Date of Award


Degree Name

Master of Science in Engineering


Industrial and Entrepreneurial Engineering and Engineering Management


Industrial and Manufacturing Engineering

First Advisor

Dr. Mitchel J. Keil

Second Advisor

Dr. Azim Houshyar

Third Advisor

Dr. David Lyth

Access Setting

Masters Thesis-Open Access


Various computer aided design (CAD) softwares have the capability to depict rigid bodies in space accurately. However, the same is not true for the flexible components. This is because flexible components in an automobile are subject to large elastic deformations during the movement of the rigid components to which they are attached.

This research details the application of the principles of computation of the orientation of entities in a simplified coordinate system, vector mathematics, the file I/O features and structured C++ programming to view the rubber hose in CAD after modeling the hose using simulation software. Further validation of the 00 and 1800 twist position of a brake hose was performed by comparing the deviations of the hose model from the actual location of the real hose obtained by using ATOS II scanning equipment. Deviations in the hose model were reduced by incorporating off-axis spring elements in the model. The modeling technique has resulted in the mean deviation at the 00 position below 1mm and at 1800 twist position below 6mm. A regression analysis was performed for generalization of force deformation values characterizing the non-linear behavior of the springs. This analysis makes this modeling technique applicable for validation of hose lengths in the range of 227.8mm-2474mm between any two attachments in space.