Swing reduction for double‐pendulum three‐dimensional overhead cranes using energy‐analysis‐based control method
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Robust and Nonlinear Control"
DOI: 10.1002/rnc.5466
Abstract: In practical applications, when the mass of the hook cannot be ignored or the shape of the payload is irregular, the crane often exhibits the dynamic characteristics of double‐pendulum. Due to the complexity of double‐pendulum… read more here.
Keywords: three dimensional; double pendulum; dimensional overhead; energy analysis ... See more keywords
Kinematic coupling‐based trajectory planning for rotary crane system with double‐pendulum effects and output constraints
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Field Robotics"
DOI: 10.1002/rob.22130
Abstract: When the payload is too large or the hook mass cannot be ignored, the double‐pendulum phenomenon may happen in rotary cranes practical applications. The increase in dynamic complexity makes it more difficult to fast and… read more here.
Keywords: kinematic coupling; double pendulum; coupling based; output constraints ... See more keywords
Dynamics of a non-autonomous double pendulum model forced by biharmonic excitation with soft stops
Sign Up to like & getrecommendations! Published in 2019 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-019-05423-6
Abstract: Pendulums and similar systems, such as links of chains, bodies hanging on ropes, kinematic chains forming working parts of manipulators, and robotic devices, are frequently used in industrial applications. They often cooperate in tubes or… read more here.
Keywords: dynamics non; non autonomous; pendulum; double pendulum ... See more keywords
Normal modes of a double pendulum at low energy levels
Sign Up to like & getrecommendations! Published in 2020 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-019-05424-5
Abstract: This study is concerned with a double pendulum and its regular behaviour associated with low energy levels and the influence of the associated initial conditions on the frequency of normal modes. The case of nonlinear… read more here.
Keywords: energy; low energy; double pendulum; normal modes ... See more keywords
A Novel Smooth Super-Twisting Control Method for Perturbed Nonlinear Double-Pendulum-Type Overhead Cranes
Sign Up to like & getrecommendations! Published in 2021 at "Arabian Journal for Science and Engineering"
DOI: 10.1007/s13369-021-05340-0
Abstract: The double-pendulum (DP) phenomenon, effectuated by the fact that the payload configuration and the chain length between the hook and the payload are usually unknown, is a typical issue in actual cranes. This phenomenon is… read more here.
Keywords: double pendulum; novel smooth; control; super twisting ... See more keywords
Torsional vibration reduction of rotating shafts for multiple orders using centrifugal double pendulum vibration absorber
Sign Up to like & getrecommendations! Published in 2020 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2020.107768
Abstract: Abstract Centrifugal Pendulum Vibration Absorbers (CPVAs) reduce the torsional fluctuations of rotating shafts at fixed vibration order by changing the natural frequency in accordance with the excitation frequency. Attenuation of multiple orders is necessary in… read more here.
Keywords: torsional vibration; order; pendulum vibration; vibration ... See more keywords
Energy-shaping-based nonlinear controller design for rotary cranes with double-pendulum effect considering actuator saturation
Sign Up to like & getrecommendations! Published in 2020 at "Automation in Construction"
DOI: 10.1016/j.autcon.2019.103054
Abstract: Abstract Dynamic performance analysis and controller design become more difficult when the load sway in rotary cranes exhibits double-pendulum characteristics. Furthermore, uncertain parameters and external disturbances in the crane system make it difficult for traditional… read more here.
Keywords: energy shaping; controller design; actuator saturation; controller ... See more keywords
A Reinforcement Learning Strategy for the Swing-Up of the Double Pendulum on a Cart
Sign Up to like & getrecommendations! Published in 2018 at "Procedia Manufacturing"
DOI: 10.1016/j.promfg.2018.06.004
Abstract: Abstract The effective control design of a dynamical system traditionally relies on a high level of system understanding, usually expressed in terms of an exact physical model. In contrast to this, reinforcement learning adopts a… read more here.
Keywords: cart; reinforcement learning; double pendulum; pendulum cart ... See more keywords
Combined input shaping and feedback control for double-pendulum systems
Sign Up to like & getrecommendations! Published in 2017 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2016.08.012
Abstract: Abstract A control system combining input shaping and feedback is developed for double-pendulum systems subjected to external disturbances. The proposed control method achieves fast point-to-point response similar to open-loop input-shaping control. It also minimizes transient… read more here.
Keywords: control; pendulum systems; shaping feedback; double pendulum ... See more keywords
Sliding-Mode-Based Trajectory Tracking and Load Sway Suppression Control for Double-Pendulum Overhead Cranes
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2018.2888563
Abstract: Overhead cranes with double-pendulum effect seem more practical than those with single-pendulum effect. However, in this case, the dynamic performance analysis and the controller design become more difficult. Moreover, achieving both high-precision tracking control and… read more here.
Keywords: double pendulum; control; load sway; sway suppression ... See more keywords
A Time Optimal Trajectory Planning Method for Double-Pendulum Crane Systems With Obstacle Avoidance
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Access"
DOI: 10.1109/access.2021.3050258
Abstract: For a crane system, when the payload is too large to be seen as a mass point, or the hook mass cannot be directly ignored, it performs more like a double-pendulum crane system, instead of… read more here.
Keywords: crane; double pendulum; crane system; pendulum crane ... See more keywords