| This study presents a computer simulation for the optimal design of high-contact-ratio gears with standard gear parameters. High-contact-ratio gears have the potential to increase load carrying capacity without substantially increasing the weight or size for a power transmission. They can provide an effective means to reduce weight and tooth root stress, and increase life and reliability.; The current work conducts gear design by analyzing their static and dynamic characteristics in order to determine the optimal parameter values for compact gear sets. The analysis and investigation involve the use and modifications of existing gear dynamics code. The study examines the effect of diametral pitch, gear ratio, addendum coefficient, and operating speed on the static and dynamic optimal high-contact-ratio gear design, subjected to various design constraints such as interference, tooth tip width, tooth bending strength, and surface contact strength.; Candidate gear sets are generated from the feasible design domain using given parameters and constraints. They are then evaluated to determine the optimal gear sets which has the most compact size and the lowest dynamic loads and stresses. Gear parameters such as diametral pitch and addendum coefficient that have significant effect on the static and dynamic design of high-contact-ratio gears are further analyzed and compared to determine their best values for creating optimal gear sets. |
