Area of research
Mechanical Engineering · Mechanics of Materials
Research interest
Research topics from publications: Lightweight design and verification of space harmonic drive; Analysis and Prediction of Transmission Error of Harmonic Reducer for Space Robot; Characterization and ZnO-based suppression of squeal propensity in water-lubricated bearings using a ring-on-ring system. Representative work: • A novel lightweight design method for harmonic drive has been proposed with a lightweight of 38 %. • This lightweight design approach reduces stress on the flexspline and improves the life of the reducer. • This lightweight design approach improves the stiffness and reduces backlash . As the key component of space mechanism, the lightweight design of harmonic drive can significantly reduce the inertia of mechanism and enhance the payload. It is of great significance to the development of space equipment. In this paper, a novel lightweight design method for harmonic drive has been proposed. The structure and gear tooth profile of the harmonic reducer is designed based on modified polyether During operation of the space robot joint, there are periodic changes in the load and speed of the harmonic reducer. Because the flexspline is a flexible mechanism, the transmission error of the harmonic reducer is related not only to manufacturing but also to load. The key to improve the precision of harmonic reducer is to reveal the relationship between transmission accuracy and load. In this paper, considering the influence of internal friction and external load, the prediction model is established for transmission error of harmonic reducer. The model has been optimized considering the load fluctuations and sudden changes during operation. The influence of load and speed is discussed on t