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Fractal and Fractional, Volume 7, Issue 1

January 2023 - 98 articles

Cover Story: Controlling soft robots is a significant challenge due to the nonlinear elastic nature of the soft materials that conform their structure. This paper studies the identification and control problems of a novel two-degrees-of-freedom, tendon-actuated, soft robotic arm. A decoupled identification approach is presented; later, a fractional order control strategy is proposed and tested experimentally, in comparison with PI solutions. The simulation and experimental results show the goodness of the modeling and control approaches discussed. View this paper
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Articles (98)

  • Article
  • Open Access
10 Citations
2,201 Views
25 Pages

Metaheuristic Solution for Stability Analysis of Nonlinear Systems Using an Intelligent Algorithm with Potential Applications

  • Faiçal Hamidi,
  • Houssem Jerbi,
  • Hadeel Alharbi,
  • Víctor Leiva,
  • Dumitru Popescu and
  • Wajdi Rajhi

In this article, we provide a metaheuristic-based solution for stability analysis of nonlinear systems. We identify the optimal level set in the state space of these systems by combining two optimization phases. This set is in a definite negative reg...

  • Review
  • Open Access
75 Citations
5,721 Views
29 Pages

A Review on Fractional-Order Modelling and Control of Robotic Manipulators

  • Kishore Bingi,
  • B Rajanarayan Prusty and
  • Abhaya Pal Singh

Robot manipulators are widely used in many fields and play a vital role in the assembly, maintenance, and servicing of future complex in-orbit infrastructures. They are also helpful in areas where it is undesirable for humans to go, for instance, dur...

  • Article
  • Open Access
10 Citations
3,106 Views
29 Pages

Escape Criteria for Generating Fractals of Complex Functions Using DK-Iterative Scheme

  • Asifa Tassaddiq,
  • Muhammad Tanveer,
  • Muhammad Azhar,
  • Muhammad Arshad and
  • Farha Lakhani

Fractals are essential in representing the natural environment due to their important characteristic of self similarity. The dynamical behavior of fractals mostly depends on escape criteria using different iterative techniques. In this article, we es...

  • Article
  • Open Access
4 Citations
2,245 Views
18 Pages

The Korteweg–de Vries (KDV) equation is one of the most well-known models in nonlinear physics, such as fluid physics, plasma, and ocean engineering. It is very important to obtain the exact solutions of this model in the process of studying th...

  • Article
  • Open Access
29 Citations
2,357 Views
22 Pages

The main aim of this paper is to introduce a new class of orthogonal polynomials that generalizes the class of Chebyshev polynomials of the first kind. Some basic properties of the generalized Chebyshev polynomials and their shifted ones are establis...

  • Article
  • Open Access
7 Citations
1,745 Views
20 Pages

Abstract Impulsive Volterra Integro-Differential Inclusions

  • Wei-Shih Du,
  • Marko Kostić and
  • Daniel Velinov

In this work, we provide several applications of (a, k)-regularized C-resolvent families to the abstract impulsive Volterra integro-differential inclusions. The resolvent operator families under our consideration are subgenerated by multivalued linea...

  • Article
  • Open Access
24 Citations
2,071 Views
12 Pages

A new local fractional modified Benjamin–Bona–Mahony equation is proposed within the local fractional derivative in this study for the first time. By defining some elementary functions via the Mittag–Leffler function (MLF) on the Ca...

  • Article
  • Open Access
11 Citations
2,227 Views
23 Pages

New Explicit Propagating Solitary Waves Formation and Sensitive Visualization of the Dynamical System

  • Rana Muhammad Zulqarnain,
  • Wen-Xiu Ma,
  • Sayed M. Eldin,
  • Khush Bukht Mehdi and
  • Waqas Ali Faridi

This work discusses the soliton solutions for the fractional complex Ginzburg–Landau equation in Kerr law media. It is a particularly fascinating model in this context as it is a dissipative variant of the Hamiltonian nonlinear Schrödinger...

  • Article
  • Open Access
9 Citations
3,885 Views
20 Pages

As an essential low-level computer vision task for remotely operated underwater robots and unmanned underwater vehicles to detect and understand the underwater environment, underwater image enhancement is facing challenges of light scattering, absorp...

  • Article
  • Open Access
5 Citations
2,371 Views
14 Pages

LFM Signal Parameter Estimation via FTD-FRFT in Impulse Noise

  • Xuelian Liu,
  • Xuemei Li,
  • Bo Xiao,
  • Chunyang Wang and
  • Bo Ma

LFM signals are widely applied in radar, communication, sonar and many other fields. LFM signals received by these systems contain a lot of noise and outliers. In order to suppress the interference of strong impulse noise on target signals and realiz...

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Fractal Fract. - ISSN 2504-3110