Results 71 to 80 of about 84,151 (298)

A Novel Position Compensation Scheme for Cable-Pulley Mechanisms Used in Laparoscopic Surgical Robots

Sensors, 2017
The tendon driven mechanism using a cable and pulley to transmit power is adopted by many surgical robots. However, backlash hysteresis objectively exists in cable-pulley mechanisms, and this nonlinear problem is a great challenge in precise position ...
Yunlei Liang, Zhijiang Du, Weidong Wang, Lining Sun   +3 more
doaj   +1 more source

Design and Performance of an Elbow Assisting Mechanism

Machines, 2020
An elbow assisting device is presented as based on a cable-driven parallel mechanism with design solutions that are improvements from a previous original design.
Giacomo Zuccon, Matteo Bottin, Marco Ceccarelli, Giulio Rosati   +3 more
doaj   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Mechanical Design of the Six-cable Driven Parallel Mechanism in FAST Telescope

DEStech Transactions on Engineering and Technology Research, 2017
A six-cable driven parallel mechanism is adopted for realizing the position and orientation control of the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The span of the cable driven parallel mechanism is 600m, which will be the largest cable robot in the world.
Qing-ge YANG, Wen-bai ZHU
openaire   +2 more sources

Trajectory Planning of the Exit Point for a Cable-Driven Parallel Mechanism by Considering the Homogeneity of Tension Variation

, 2022
Considering the uniformity of cable tension variation, in this paper, the trajectory planning problem of the exit point for a continuously reconfigurable four-cable-driven two-degrees-of-freedom (DOF) parallel mechanism was studied.
Cheng Peng, Zequn Hou, Fang Yang, Yanglong Li, Hang Li   +4 more
core   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Increase of position accuracy for cable-driven parallel robots using a model for elongation of plastic fiber ropes

, 2022
S.335-343This paper investigates the modeling of elongation in plastic fiber ropes for cable-driven parallel robots. The aim is to increase the accuracy of such a machine by incorporating a simple model for cable elongation when a force is applied ...
Pott, Andreas, Schmidt, Valentin
core   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

Advanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source

Design of Reconfigurable Cable Driven Parallel Mechanism

Source code for the journal article : Khoshbin E, Youssef K, Meziane R, Otis MJ-D. Reconfigurable fully constrained cable-driven parallel mechanism for avoiding collision between cables with human. Robotica. 2022;40(12):4405-4430.
Elham Khoshbin, Ramy Meziane, Martin Otis   +2 more
core   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source