Graduation Semester and Year




Document Type


Degree Name

Master of Engineering in Aerospace Engineering


Mechanical and Aerospace Engineering

First Advisor

Kent L Lawrence


In gear manufacturing applications, it is required to calculate surface stress and bending stress with minimum error. This thesis represents engineering calculation of bending and surface compression of external teethed involute spur gear. One may change the input values to calculate the engineering data for gears. The freedom of changing input values gives the capability to program to calculate for factor, Y; and the bending geometry factor, J to analyze spur gear geometry. Here the engineering gear calculation has been done by developing program in Mathcad software. The program is designed to calculate surface and bending stress data by input such as pitch, face width, pressure angle, horse-power, and load. Also the program can calculate stresses for various pitches, face widths, and pressure angles. Thus Mathcad program is useful for design and manufacturing application for various types of external involute spur gears. It can reduce the errors in engineering calculations. This program gives the advantages to engineers to design gears and get the values for form factors and geometry factors which are not available.


Aerospace Engineering | Engineering | Mechanical Engineering


Degree granted by The University of Texas at Arlington