In the Department of Mechanical Engineering / College of Engineering /University of Karbala, a master’s thesis entitled “the development of an infinitely variable transmission based on the Gamma  principle ” was defensed  by Muhaimin Faleh Hamad and under the supervision of Assist  Prof. Dr. Amjad Malallah Abboud from Karbala University.

The discussion committee consisted of the following:

  1. Professor Dr. Ali Sadiq Yasser Committee President / University of Kufa.
  2. Professor Dr. Uday Ibrahim Abdullah, committee member / University of Baghdad.
  3. Assistant Professor Dr. Hazem Omran Alwan committee member / University of Karbala.

 The thesis aimed the studying and designing the dimensions of the parts for the transmission and its assembly, as well as developing the device to consist of two similar groups: each group consists of a cam, a cam follower, a grooved axle, a grooved wheel follower, and a grooved wheel and a ratchet.

The kinetic analysis calculations were theoretically conducted for the system. For each individual part, the simulation was applied by using the (SOLIDWORKS 2018) program, which is considered close to the practical reality.

In addition to the theoretical calculations, simulations have been calculated for all parts of the device. Each part of the device is separated in order to make a comparison between the results of theory and simulation, and to ensure the validity and accuracy of both obtained results.

As for the theoretical results, they were conducted for each device, as they were performed in two cases: the stationary state of the grooved axis rotation axis, and the variable case to obtain variable proportions. The results indicated a maching between the theoretical and simulated results as well as for (Yi). As for the second case, in which the theoretical and simulated results were also taken, are good with an error rate of 2%.