[HTML][HTML] Progress of stewart vibration platform in aerospace micro–vibration control

Z He, X Feng, Y Zhu, Z Yu, Z Li, Y Zhang, Y Wang… - Aerospace, 2022 - mdpi.com
In order to support the development of high–precision spacecraft, the current state of the
Stewart vibration isolation platform in the field of aerospace micro–vibration was surveyed …

Dynamic modeling and analysis of a novel offshore gangway with 3UPU/UP-RRP series-parallel hybrid structure

A Niu, S Wang, Y Sun, J Qiu, W Qiu, H Chen - Ocean Engineering, 2022 - Elsevier
It is inevitable that the 6-DOF motions of ships at sea will be induced by the marine
environmental disturbances. Even though some ships are equipped with mooring or …

Kinematic, dynamic, and performance analysis of a new 3-DOF over-constrained parallel mechanism without parasitic motion

M Chen, Q Zhang, X Qin, Y Sun - Mechanism and Machine Theory, 2021 - Elsevier
This research proposes a novel over-constrained parallel mechanism without parasitic
motion. The parasitic motion analysis and the kinematic problem of the mechanism are …

High-fidelity hexarot simulation-based motion platform using fuzzy incremental controller and model predictive control-based motion cueing algorithm

MRC Qazani, H Asadi, S Nahavandi - IEEE Systems Journal, 2019 - ieeexplore.ieee.org
The real vehicle motion signals cannot be applied for the simulation-based motion platforms
(SBMPs) due to the restricted workspace of the SBMPs. The motion cueing algorithms …

An investigation on the motion error of machine tools' hexapod table

MRC Qazani, S Pedrammehr, MJ Nategh - International Journal of …, 2018 - Springer
Accuracy is greatly affected by the nonlinear motion of hexapods. This need is more
apparent when these mechanisms are employed in machining industry where precision and …

Performance analysis and dexterity monitoring of hexapod-based simulator

MRC Qazani, H Asadi, S Pedrammehr… - 2018 4th …, 2018 - ieeexplore.ieee.org
Washout filter is in demand to generate the vehicle acceleration and angular velocities with
high loyalty to make the best realistic motion. The limitation of the simulator's moving …

A decoupled linear model predictive control-based motion cueing algorithm for simulation-based motion platform with limitted workspace

MRC Qazani, H Asadi… - 2019 IEEE International …, 2019 - ieeexplore.ieee.org
The simulation-based motion platforms (SBMPs) are useful devices to reproduce the motion
feeling for a driver/piolet. The SBMPs are restricted due to limitations of the platforms' …

Kinematic manipulability analysis of hexarot simulators

S Pedrammehr, MRC Qazani, H Asadi… - 2019 IEEE …, 2019 - ieeexplore.ieee.org
Hexarot is a popular member of the axisymmetric parallel mechanisms family. One of the
challenges in hexarot manipulators is to analyze their manipulability. In this paper, the …

Control system development of a hexarot-based high-G centrifugal simulator

S Pedrammehr, MRC Qazani, H Asadi… - 2019 IEEE …, 2019 - ieeexplore.ieee.org
Hexarot is a type of the axisymmetric parallel mechanisms which has become increasingly
popular for use as high-G simulators. This paper presents the design and control system …

Performance evaluation and calibration of gantry-tau parallel mechanism

MR Chalak Qazani, S Pedrammehr, H Abdi… - Iranian Journal of …, 2020 - Springer
Abstract The Gantry-Tau is a family of parallel manipulators with three linear actuators. This
mechanism is of interest for various applications because of the large workspace and its …