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Higher screw-to-cage length ratios in standalone lateral interbody fusion using integrated, expandable implants provide more predictable outcomes with less variability: A 2-year follow-up study. [PDF]
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An Introduction to Screw Theory
2020In this chapter, screw theory is introduced as a preliminary study to give readers an overview of screw theory and its application in compliant mechanism designs. The definition of a screw, as well as the key screw operations, are given in Sect. 2.2, such as the interchange operation of a screw, the screw coordinate transformation and the reciprocal ...
Qiu, Chen, Dai, Jian S.
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Finite and Instantaneous Screw Theory
2020This chapter presents fundamental concepts, expressions, operations, and properties of FIS theory. Firstly, the finite screw in quasi-vector form and its composition operation, i.e., the screw triangle product, is derived from dual quaternion for the first time.
Tao Sun, Shuofei Yang, Binbin Lian
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Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2021
This paper presents a novel modeling and compensation method for the volumetric errors of a six-axis gantry automated fiber placement (AFP) machine. Based on the screw theory, the forward and inverse kinematics models of the AFP machine are established ...
Liang Cheng +3 more
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This paper presents a novel modeling and compensation method for the volumetric errors of a six-axis gantry automated fiber placement (AFP) machine. Based on the screw theory, the forward and inverse kinematics models of the AFP machine are established ...
Liang Cheng +3 more
semanticscholar +1 more source
Configuration synthesis of linear foldable over-constrained deployable unit based on screw theory
, 2021According to a description of the topology structure of deployable antennas, this work proposes the configuration synthesis method of over-constrained deployable units on the basis of screw theory and conducts example analyses on the basis of an analysis
Shih-Hsuan Chuang +4 more
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Journal of Robotic Systems, 2003
AbstractThis study in projective geometry reveals that the principle of duality applies to the screw. Here, the screw is demonstrated to be an element of a projective three‐dimensional space (P3), right alongside the line. Dual elements for the screw and line are also revealed (the nut and spline).
Griffis, Michael, Rico, José María
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AbstractThis study in projective geometry reveals that the principle of duality applies to the screw. Here, the screw is demonstrated to be an element of a projective three‐dimensional space (P3), right alongside the line. Dual elements for the screw and line are also revealed (the nut and spline).
Griffis, Michael, Rico, José María
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Kinematic Calibration of Serial and Parallel Robots Based on Finite and Instantaneous Screw Theory
IEEE Transactions on robotics, 2020In current robot calibration approaches, the error propagation and identification of serial and parallel robots fail to be solved intuitively and generically, resulting in an inefficient calibration implementation and a low accuracy improvement.
T. Sun +3 more
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