Nonlinear hierarchical control for unmanned quadrotor transportation systems

X Liang, Y Fang, N Sun, H Lin - IEEE Transactions on Industrial …, 2017 - ieeexplore.ieee.org
An unmanned quadrotor presents excellent mobility to fly freely in complex environments,
which makes it an ideal choice for aerial transferring tasks. During the transferring process, it …

Continuous sliding mode control strategy for a class of nonlinear underactuated systems

B Lu, Y Fang, N Sun - IEEE Transactions on Automatic Control, 2018 - ieeexplore.ieee.org
Sliding mode control (SMC), which is known to present strong robustness against various
disturbances, has been extensively employed on underactuated systems, whose control …

Reconfigurable tolerant control of uncertain mechanical systems with actuator faults: A sliding mode observer-based approach

B ** reconfigurable fault-tolerant control to retain a
nominal feedback controller and simultaneously handles actuator faults and system …

A survey on underactuated robotic systems: bio-inspiration, trajectory planning and control

P Liu, MN Huda, L Sun, H Yu - Mechatronics, 2020 - Elsevier
Underactuated robotic systems have become an important research topic aiming at
significant improvement of the behavioural performance and energy efficiency. Adopting …

Underactuated motion planning and control for jum** with wheeled-bipedal robots

H Chen, B Wang, Z Hong, C Shen… - IEEE Robotics and …, 2020 - ieeexplore.ieee.org
This letter studies jum** for wheeled-bipedal robots, a motion that takes full advantage of
the benefits from the hybrid wheeled and legged design features. A comprehensive …

A novel energy-coupling-based hierarchical control approach for unmanned quadrotor transportation systems

X Liang, Y Fang, N Sun, H Lin - IEEE/ASME Transactions On …, 2019 - ieeexplore.ieee.org
Cable-suspended transportation is an important way of transferring goods and materials by
rotorcraft in complex and hazardous environments, where external disturbances, system …

Antiswing control of offshore boom cranes with ship roll disturbances

B Lu, Y Fang, N Sun, X Wang - IEEE Transactions on Control …, 2017 - ieeexplore.ieee.org
Offshore cranes often work in harsh sea conditions. As a result, they may suffer from various
external disturbances, especially the persistent and unpredictable ship motion caused by …

Underactuated mechanical systems with both actuator and actuated/unactuated state constraints: A predictive control-based approach

M Zhai, N Sun, T Yang, Y Fang - IEEE/ASME Transactions on …, 2022 - ieeexplore.ieee.org
Underactuated systems are widely used in practice. Due to actuator saturation and transient
performance requirements, it is necessary to keep the control inputs and system states …

Sliding mode control for underactuated overhead cranes suffering from both matched and unmatched disturbances

B Lu, Y Fang, N Sun - Mechatronics, 2017 - Elsevier
Overhead cranes, which are known as typical underactuated systems, are extensively
studied in recent years. However, many existing methods for overhead cranes are …

Enhanced-coupling adaptive control for double-pendulum overhead cranes with payload hoisting and lowering

B Lu, Y Fang, N Sun - Automatica, 2019 - Elsevier
Overhead cranes, which have been extensively studied, are mostly simplified as single
pendulums. However, in practice, the existence of lifting hook usually makes the crane …