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Machines, Volume 9, Issue 2

February 2021 - 24 articles

Cover Story: The study focuses on performance tests carried out on a low-cost and 3D printed prosthetic hand, named “Federica”. The prosthesis can perform an adaptive grasp function using a single servomotor, which actuates all the five fingers by inextensible tendons. A cylindrical handlebar with a built-in load cell was used to measure the prosthesis grip force. Force sensors were also applied on selected phalanxes for mapping the grasp force distribution. Moreover, by measuring the actuator tendon displacement and estimating its exerted force, the energy efficiency of the prosthesis and the works required for hand closing–opening were computed. The grip force was enough to support the user in daily life actions, and the hysteresis for a complete cycle of closing–opening was lower than that of many commercial prostheses. View this paper.
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Articles (24)

  • Article
  • Open Access
34 Citations
4,147 Views
21 Pages

Study of Tank Containers for Foodstuffs

  • Aurelio Liguori,
  • Andrea Formato,
  • Arcangelo Pellegrino and
  • Francesco Villecco

21 February 2021

In this study, we examined a tank container for foodstuff that is generally used for the transport of foodstuffs. With the aid of the “ANSYS R17.0” program code, a numerical model of the tank container for foodstuffs was realized. Further, to validat...

  • Article
  • Open Access
1 Citations
4,402 Views
16 Pages

Design for the Automation of an AMBU Spur II Manual Respirator

  • Carles Domènech-Mestres,
  • Elena Blanco-Romero,
  • Albert de la Fuente-Morató and
  • Manuel Ayala-Chauvin

21 February 2021

This article shows the design of a device to automatize an Ambu Spur II manual respirator. The aim of this compassionate medicine device is to provide an emergency alternative to conventional electric respirators—which are in much shortage—during the...

  • Article
  • Open Access
21 Citations
5,178 Views
32 Pages

20 February 2021

The addition of omnidirectional capability and modularization to conveyor systems is an exciting and trending topic in current conveyor research. The implementation of omnidirectional modular conveyors is foreseen as mandatory in the future of convey...

  • Article
  • Open Access
8 Citations
5,274 Views
17 Pages

17 February 2021

This study aimed to develop an extrusion and pultrusion system for producing carbon fiber-filled thermoplastic pellets. The extruder delivers a plastic melt to an impregnation die in sufficient volume and is pulled out along with the fibers. The fibe...

  • Article
  • Open Access
6 Citations
4,639 Views
16 Pages

15 February 2021

Assessing passenger cars’ dynamic performance is a critical aspect for car industries, due to its impact on the overall vehicle safety evaluation and the subjective nature of the involved handling and comfort metrics. Accordingly, ISO standards, such...

  • Article
  • Open Access
16 Citations
3,613 Views
24 Pages

Segmented Embedded Rapid Defect Detection Method for Bearing Surface Defects

  • Linjian Lei,
  • Shengli Sun,
  • Yue Zhang,
  • Huikai Liu and
  • Hui Xie

14 February 2021

The rapid development of machine vision has prompted the continuous emergence of new detection systems and algorithms in surface defect detection. However, most of the existing methods establish their systems with few comparisons and verifications, a...

  • Article
  • Open Access
7 Citations
7,628 Views
27 Pages

Probabilistic Condition Monitoring of Azimuth Thrusters Based on Acceleration Measurements

  • Riku-Pekka Nikula,
  • Mika Ruusunen,
  • Joni Keski-Rahkonen,
  • Lars Saarinen and
  • Fredrik Fagerholm

10 February 2021

Drill ships and offshore rigs use azimuth thrusters for propulsion, maneuvering and steering, attitude control and dynamic positioning activities. The versatile operating modes and the challenging marine environment create demand for flexible and pra...

  • Article
  • Open Access
20 Citations
8,777 Views
23 Pages

Analytical Study on the Cornering Behavior of an Articulated Tracked Vehicle

  • Antonio Tota,
  • Enrico Galvagno and
  • Mauro Velardocchia

9 February 2021

Articulated tracked vehicles have been traditionally studied and appreciated for the extreme maneuverability and mobility flexibility in terms of grade and side slope capabilities. The articulation joint represents an attractive and advantageous solu...

  • Review
  • Open Access
11 Citations
7,449 Views
16 Pages

Human–Machine Interface in Transport Systems: An Industrial Overview for More Extended Rail Applications

  • Simon Enjalbert,
  • Livia Maria Gandini,
  • Alexandre Pereda Baños,
  • Stefano Ricci and
  • Frederic Vanderhaegen

8 February 2021

This paper provides an overview of Human Machine Interface (HMI) design and command systems in commercial or experimental operation across transport modes. It presents and comments on different HMIs from the perspective of vehicle automation equipmen...

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Machines - ISSN 2075-1702