Analysis and design exploration of single stage compound stepped planetary gear transmissions

Abstract

The authors conduct a parametric exploration of single‑stage compound stepped planetary transmission topologies, evaluating trade‑offs among transmission ratio, mechanical efficiency, and power density. They find that while high transmission ratios often correspond to low efficiency and/or large volume, certain niche design regions achieve simultaneously high ratio, high efficiency, and compact size. These designs are identified as promising for compact, high‑performance transmission systems.