A5109302556- Gear and Bearing Dynamics Analysis
- Mechanical Engineering and Vibrations Research
- Tribology and Lubrication Engineering
- Mechanical stress and fatigue analysis
- Iterative Learning Control Systems
- Metallurgy and Material Forming
- Adhesion, Friction, and Surface Interactions
- Advanced machining processes and optimization
- Engineering Technology and Methodologies
- Advanced Measurement and Metrology Techniques
- Injection Molding Process and Properties
- Robotic Mechanisms and Dynamics
- Vibration and Dynamic Analysis
- Hydraulic and Pneumatic Systems
- Advanced Numerical Analysis Techniques
- Engineering Structural Analysis Methods
- Mechanical Failure Analysis and Simulation
- Fatigue and fracture mechanics
- Vibration Control and Rheological Fluids
- Vehicle Dynamics and Control Systems
- Manufacturing Process and Optimization
- Power Systems and Technologies
- Advanced Surface Polishing Techniques
- Robotic Locomotion and Control
- Teleoperation and Haptic Systems
Chongqing University
2016-2025
State Key Laboratory of Mechanical Transmission
2023
Zhejiang University
2010
Human–robot shared control provides a promising opportunity to improve operational safety and efficiency for teleoperated hydraulic manipulator system that works in unstructured environments, such as rescue response underwater exploration. However, the poor dynamic of heavy-duty (e.g., oscillation tendency delay) brings challenging problem on intent prediction effective assistance. To overcome this problem, blended method is proposed via locally weighted prediction. First, task learning from...
The load distribution analysis plays a significant role in the performance evaluation of cycloid speed reducer. However, current analytical models usually ignore elastic deformation, clearances, or assembly errors. These factors must be considered for realistic This paper proposes an model reducer based on unloaded tooth contact and analyses. proposed can predict loads various components presence clearances eccentricity results are compared with those predicted by theoretical geometry....
Abstract The effects of surface roughness and material properties the planetary roller screw mechanism (PRSM) on axial stiffness load distribution are rarely studied. In this paper, model is presented by incorporating into friction factor microtopography. microcontact built considering elastic plastic regimes to calculate total actual contact area. Moreover, modified introducing coefficient. Then, influences nut position, fractal dimension, roughness, factor, load, yield strength studied in...
Under the extreme service requirements, a novel self-evolution hourglass worm drive has been proposed, and this transmission form both precision heavy-load characteristics. In paper, to fully grasp characteristics, evolving law of macro micro meshing performances is studied. The mathematical model in initial state converted, medium gear tooth surface modified involute obtained. Considering profile change whole life cycle, control thickness established, boundary backlash-adjustable...
Obtaining the load distribution and radial deformations of planetary roller screw mechanism (PRSM) for carrying capacity design under complex loading conditions (multi-directional loads) is beneficial to decelerate fatigue wear threads. However, combined effects axial load, turning torque (overturning moment) were ignored in previous studies due complicated structure PRSM. This paper presents a multi-roller beam-bar-spring (MR-BBS) model that incorporate thread modification. The proposed...
A new involute-helix gear drive, which is point contact with convex and concave circular-arc tooth profiles, proposed in this article. The basic principle characterized by the advantages of involute gears put forward. Based on theory conjugates curves, generation mathematical model transmission are presented. separability center distance discussed meshing characteristic also analyzed. Finally, three-dimensional solid a pair developed to demonstrate properties transmission.
Abstract Due to the low error sensitivity, local conjugate enveloping hourglass worm drive based on medium gear is being intensively investigated, and this article examines meshing performance of such a drive. In article, principle grounded in modified involute proposed, using approach established; boundary conditions are set up, oblique planar converted form; contact area analyzed tooth analysis (TCA), finite element (FEA) executed validate TCA's accuracy perform loaded (LTCA); mathematical...
Cycloid drive is used widely in many industrial areas for both power transmission and precision transmission. In this paper a novel cycloid proposed its meshing characteristics are analyzed. The conjugated gear pair of composed by an external cycloid-arc internal ring gear. Firstly, the idea described tooth profile equation presented. Secondly, based on coordinate transformation geometry theory, established, formula induced normal curvature also derived. Thirdly, analyzed numerical example:...
A new meshing relationship for gear drive to characterize the conjugation geometry is studied in this paper based on conjugate curves. Conjugate curves are described as two smooth always keep continuous and tangent contact with each other given direction under motion law. The general principle of curve developed spatial or plane curve. equation along arbitrary angle derived. properties geometric discussed. According equidistance-enveloping method, tubular surfaces proposed build up circular...