Ranran Geng

Nanjing University of Aeronautics and Astronautics

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About

Dr. Ranran Geng is a leading researcher in the field of piezoelectric actuators and precision motion systems, with a particular focus on linear ultrasonic motors (LUMs). Their seminal 2016 work, "Development and applications of linear ultrasonic motors," introduced groundbreaking structural design methods that significantly enhanced motor efficiency. By pioneering the use of a continuous variable cross-section Langevin vibrator in the stator, Dr. Geng achieved superior vibration efficiency and structural stability, directly addressing long-standing challenges in robotic actuation. This foundational contribution, which has garnered 6 citations, has influenced subsequent designs for high-precision positioning systems. Dr. Geng’s research bridges materials science and mechanical engineering, offering practical solutions for robotics, medical devices, and micro-manufacturing. Their work is recognized for advancing the reliability and performance of ultrasonic motors, making them more viable for real-world applications. As a dedicated innovator, Dr. Geng continues to explore novel actuator topologies, driving progress in smart materials and mechatronics.