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Machines, Volume 10, Issue 9

September 2022 - 104 articles

Cover Story: In this paper, the power losses of a five-phase drive system based on an indirect matrix converter (IMC) and a five-phase synchronous reluctance motor (SynRM) have been analyzed. Moreover, a control strategy is applied to decrease the power converter losses and make the system superior to the conventional one. The carrier-based pulse-width-modulation (CBPWM) method is used for this. Through the CBPWM, switching losses are kept as low as possible in this technique by ensuring that the rectifier stage experiences zero current commutation. To achieve this, the rectifier and inverter stages are synchronized so that the commutation in the rectifier stage occurs at the zero vectors of the inverter, which corresponds to a zero DC-link current. View this paper
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Articles (104)

  • Article
  • Open Access
2,410 Views
20 Pages

19 September 2022

To fully disclose the machining potential of a newly developed five-axis hybrid kinematic machining unit (HKMU), an equilibrium decision-making approach for cutting parameters is proposed. With this proposition, a response surface method-based surrog...

  • Article
  • Open Access
8 Citations
4,140 Views
25 Pages

Human Factor Analysis of the Railway Traffic Operators

  • Aleš Janota,
  • Rastislav Pirník,
  • Juraj Ždánsky and
  • Peter Nagy

19 September 2022

The human factor is an essential aspect of the operability and safety of many technical systems. This paper focuses on the analysis of human errors in the railway domain. The subject of human reliability analysis is the behavior of operators of stati...

  • Article
  • Open Access
7 Citations
2,708 Views
15 Pages

19 September 2022

In this study, to improve the accuracy of the brush seal heat transfer model, based on the finite volume method (FVM) coupled with the three-dimensional Reynold-averaged Naviers-Stokes equations (RANS) equations of the Local temperature non-equilibri...

  • Article
  • Open Access
3 Citations
4,304 Views
19 Pages

19 September 2022

Degradation of the ignition system can result in startup failure in an aircraft’s auxiliary power unit. In this paper, a novel acoustics-based solution that can enable condition monitoring of an APU ignition system was proposed. In order to sup...

  • Article
  • Open Access
7 Citations
3,549 Views
18 Pages

18 September 2022

Torsional vibration of the automotive driveline has significant influence on driving comfort. This study investigates the influence of clutch nonlinear behaviors on the torsional vibration of the driveline with numerical and experimental methods. A g...

  • Article
  • Open Access
18 Citations
4,085 Views
25 Pages

A Novel Sliding Mode Momentum Observer for Collaborative Robot Collision Detection

  • Shike Long,
  • Xuanju Dang,
  • Shanlin Sun,
  • Yongjun Wang and
  • Mingzhen Gui

17 September 2022

Safety during physical human–robot interaction is the most basic requirement for robots. Collision detection without additional sensors is an economically feasible way to ensure it. In contrast, current collision detection approaches have an un...

  • Article
  • Open Access
7 Citations
4,919 Views
33 Pages

Magnetic Field Analysis and Performance Optimization of Dual-Rotor Hybrid Excitation Generator for Automobile

  • Shilong Yan,
  • Xueyi Zhang,
  • Jun Zhang,
  • Yufeng Zhang,
  • Mingjun Xu,
  • Ting Gao and
  • Sizhan Hua

16 September 2022

Aiming at the current problems of low excitation efficiency and poor reliability of single-rotor hybrid excitation generators, the large axial length of dual-rotor structure, and difficulty in magnetic field analysis, a new type of the dual-rotor hyb...

  • Article
  • Open Access
8 Citations
4,164 Views
20 Pages

Conceptualization and Implementation of a Reconfigurable Unmanned Ground Vehicle for Emulated Agricultural Tasks

  • Raza A. Saeed,
  • Giacomo Tomasi,
  • Giovanni Carabin,
  • Renato Vidoni and
  • Karl D. von Ellenrieder

16 September 2022

Small-to-medium sized systems able to perform multiple operations are a promising option for use in agricultural robotics. With this in mind, we present the conceptualization and implementation of a versatile and modular unmanned ground vehicle proto...

  • Article
  • Open Access
7 Citations
5,280 Views
23 Pages

16 September 2022

The connecting rod assembly of a high-power low-speed diesel engine has high quality and high cost. If the connecting rod component is damaged, the whole machine may be paralyzed, resulting in serious economic losses and safety problems, so it is nec...

  • Article
  • Open Access
4 Citations
2,658 Views
18 Pages

Vibro-Impact Response Analysis of Collision with Clearance: A Tutorial

  • Yongjie Xu,
  • Yu Tian,
  • Qiyu Li,
  • Yanbin Li,
  • Dahai Zhang and
  • Dong Jiang

16 September 2022

A collision with clearance causes obvious nonlinearity in structures, and dynamic response analysis plays an important role in predicting the mechanical performance of the structure. The general form of the nonlinear dynamic equation of a structure a...

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Machines - ISSN 2075-1702