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July 8, 2026PLoS ONEOpen Access

Modeling and analysis of forward and inverse kinematics for a flexible Stewart platform

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Authors

LSLiang SuLHLinke HouJLJiaodi Liu

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Overview

Randomized trial reports improved kinematic solutions in flexible Stewart platforms, indicating enhanced positioning accuracy.

Key Points

  • This research aims to improve positioning accuracy for flexible Stewart platforms through advanced kinematic modeling and neural network analysis.
  • Developed a mathematical model for inverse kinematics using piezoelectric ceramics for displacement calculation.
  • Introduced an improved BP neural network method based on the Levenberg-Marquardt algorithm to solve forward kinematics.
  • Conducted MATLAB simulations to validate the accuracy of the proposed kinematic solutions.
  • Inverse kinematics displacement range calculated with piezoelectric ceramics is 27.9 nm to 47.4 nm.
  • Forward kinematics pose prediction error is controlled within 0.5%, with absolute errors around 0.02 mm.
  • Proposed methods significantly outperform traditional methods in friction displacement compensation and pose prediction accuracy.

Cite This Study

Su et al. (2026) studied this question.

synapsesocial.com/papers/6a4de9add2ea289ef6283cc3https://doi.org/10.1371/journal.pone.0353154
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