Control and Mechanical System Engineering

A special issue of Machines (ISSN 2075-1702). This special issue belongs to the section "Automation and Control Systems".

Deadline for manuscript submissions: 30 April 2024 | Viewed by 10836

Special Issue Editors


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Guest Editor
Automation and Robotics Lab, Department of Mechatronics Engineering, Kocaeli University, İzmit, Turkey
Interests: control and system engineering; robotics and mechatronics systems; artificial intelligence; computer learning and pattern recognition; electrical and electronics engineering; power electronics; optimization theory and methods; simulation; machine theory and dynamics; engineering and technology

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Guest Editor
Department of Electrical and Microelectronic Engineering, Kate Gleason College of Engineering, Rochester Institute of Technology, Rochester, NY, USA
Interests: collaborative robotics; human-compliant robotics systems; deep learning approaches for grasping; machine learning for biosignals; system of simulation and modeling; machine learning; biological signal processing; fault analysis and systemic health evaluation; decision theory; distributed multi-agent systems; structural Bayesian network learning

Special Issue Information

Dear Colleagues,

Machines today need to be reliable, sustainable and durable to make them more useful and in line with Industry 5.0. In addition, machines should be made compatible with the internet to ensure fast data sharing with other devices. For this purpose, smarter and cognitive machines are being developed all over the world. To meet these requirements, more robust and precise and agile controlled machines are needed. In this issue, we aim to publish the latest advances in the following subjects:

  • Control of underwater robots;
  • Control of unmanned aerial vehicles;
  • Special actuator design and control;
  • Serial and parallel industrial robot control;
  • Biomimetics and biologically inspired robots;
  • Automation, control systems, simulation techniques, and control applications;
  • Micro/nano robotics and manipulation;
  • Multirobot systems and distributed robotics;
  • Human–robot interaction control;
  • Control of haptics;
  • Control of rehabilitation robotics.

Prof. Dr. Zafer Bingül
Prof. Dr. Ferat Sahin
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Machines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (7 papers)

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Research

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17 pages, 7493 KiB  
Article
Anti-Swaying Control Strategy of Ship-Mounted 3-RCU Parallel Platform Based on Dynamic Gravity Compensation
by Zhiyuan Lv, Pengfei Liu, Donghong Ning and Shuqing Wang
Machines 2024, 12(3), 209; https://doi.org/10.3390/machines12030209 - 21 Mar 2024
Viewed by 659
Abstract
It is essential to ensure stability during marine transportation or the installation of high center of gravity loads. The heavy loads increase gravity disturbance, affecting the steady-state-error control of the multiple degrees of freedom (DOFs) motion compensation platform. In this paper, we propose [...] Read more.
It is essential to ensure stability during marine transportation or the installation of high center of gravity loads. The heavy loads increase gravity disturbance, affecting the steady-state-error control of the multiple degrees of freedom (DOFs) motion compensation platform. In this paper, we propose a proportional derivative (PD) controller with dynamic gravity compensation (PDGC) for a 3-RCU (revolute–cylindrical–universal) parallel platform to improve the control effect of marine motion compensation for high center of gravity loads. We introduce an evaluation parameter of load stability and a weighting coefficient of anti-swaying control to tune the controller performance. The controller can set its control target between the two, keeping the load contact surface level and allowing the load center of gravity with the least movement. By deriving the Jacobian matrix, the gravity disturbance in the joint space is calculated and is compensated in the controller. First, we verify the control superiority of this controller over the PD controller under sinusoidal excitation in simulation and validate the effectiveness of the proposed anti-swing strategy. Then, the experiments are conducted with random excitation. The root mean square (RMS) value of the load’s residual angle with the proposed controller is reduced to 32.2% and 17.6% in two directions, respectively, compared with the PD controller under class 4 sea state excitation. The proposed method is effective for the anti-swaying control of ship-mounted 3-RCU parallel platforms. Full article
(This article belongs to the Special Issue Control and Mechanical System Engineering)
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17 pages, 4925 KiB  
Article
Design and Control of Autonomous Flying Excavator
by Arif Zaman and Jaho Seo
Machines 2024, 12(1), 23; https://doi.org/10.3390/machines12010023 - 29 Dec 2023
Viewed by 1088
Abstract
This study presents a drone-based excavation platform prototype with the key objectives of balancing stability during excavation, sensing, and digging the soil pile autonomously without human intervention. The whole platform was first designed in CAD software, and then each part of the excavator [...] Read more.
This study presents a drone-based excavation platform prototype with the key objectives of balancing stability during excavation, sensing, and digging the soil pile autonomously without human intervention. The whole platform was first designed in CAD software, and then each part of the excavator assembly was 3D printed by using PLA filament. The physical system was then combined with numerous electronic components and linked to various software applications for a drone to perform autonomous excavations. Pixhawk Orange Cube served as the main controller for the drone, while Nvidia Jetson Nano was used for processing data and controlling the tip of the bucket at a specified location for the autonomous excavator. Two scenarios were considered to validate the functionality of the developed platform. In the first scenario, the drone flies independently to a construction site, lands, senses the soil, excavates it, and then travels to another location specified by the mission to deposit the soil. Full article
(This article belongs to the Special Issue Control and Mechanical System Engineering)
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17 pages, 3940 KiB  
Article
Adaptive Neuro-Fuzzy Control of Active Vehicle Suspension Based on H2 and H Synthesis
by Jaffar Seyyed Esmaeili, Ahmad Akbari, Arash Farnam, Nasser Lashgarian Azad and Guillaume Crevecoeur
Machines 2023, 11(11), 1022; https://doi.org/10.3390/machines11111022 - 14 Nov 2023
Viewed by 964
Abstract
This paper addresses the issue of a road-type-adaptive control strategy aimed at enhancing suspension performance. H2 synthesis is employed for modeling road irregularities as impulses or white noise, minimizing the root mean square (RMS) of performance outputs for these specific road types. [...] Read more.
This paper addresses the issue of a road-type-adaptive control strategy aimed at enhancing suspension performance. H2 synthesis is employed for modeling road irregularities as impulses or white noise, minimizing the root mean square (RMS) of performance outputs for these specific road types. It should be noted, however, that this approach may lead to suboptimal performance when applied to other road profiles. In contrast, the H controller is employed to minimize the RMS of performance outputs under worst-case road irregularities, taking a conservative stance that ensures robustness across all road profiles. To leverage the advantages of both controllers and achieve overall improved suspension performance, automatic switching between these controllers is recommended based on the identified road type. To implement this adaptive switching mechanism, manual switching is performed, gathering input–output data from the controllers. These data are subsequently employed for training an Adaptive Neuro-Fuzzy Inference System (ANFIS) network. This elegant approach contributes significantly to the optimization of suspension performance. The simulation results employing this novel ANFIS-based controller demonstrate substantial performance enhancements compared to both the H2 and H controllers. Notably, the ANFIS-based controller exhibits a remarkable 62% improvement in vehicle body comfort and a significant 57% enhancement in ride safety compared to passive suspension, highlighting its potential for superior suspension performance across diverse road conditions. Full article
(This article belongs to the Special Issue Control and Mechanical System Engineering)
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18 pages, 2975 KiB  
Article
A Reference Governor with Adaptive Performance for Quadrotors under Safety Constraints
by Panagiotis S. Trakas, Andreas Tantoulas and Charalampos P. Bechlioulis
Machines 2023, 11(11), 984; https://doi.org/10.3390/machines11110984 - 24 Oct 2023
Viewed by 986
Abstract
This paper presents a novel robust reference governor (RG) for trajectory tracking of quadrotors. The proposed scheme is characterized by low computational complexity and straightforward gain selection. Moreover, it considers safety constraints regarding speed limits and ensures the stability and the proper operation [...] Read more.
This paper presents a novel robust reference governor (RG) for trajectory tracking of quadrotors. The proposed scheme is characterized by low computational complexity and straightforward gain selection. Moreover, it considers safety constraints regarding speed limits and ensures the stability and the proper operation of the closed-loop system. The proposed scheme imposes user-specified performance attributes on the evolution of the tracking error when the safety constraints allow it. When these constraints are at risk of violation, the proposed RG provides a relaxation of the predefined performance specifications to ensure the stability of the plant. Lyapunov analysis proves the boundedness of the closed-loop signals, while its efficacy is further clarified and verified via extensive comparative experimental results against a well-established PI regulator. Full article
(This article belongs to the Special Issue Control and Mechanical System Engineering)
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19 pages, 5322 KiB  
Article
Bond-Graph-Based Approach to Teach PID and Sliding Mode Control in Mechatronics
by Zenan Guo, Péter Korondi and Péter Tamás Szemes
Machines 2023, 11(10), 959; https://doi.org/10.3390/machines11100959 - 14 Oct 2023
Viewed by 1153
Abstract
The main contribution of this article is creating synergy between subjects; this means that students use the same graphical tool in several subjects. So far, the bond graph has not been used in control theory, but it is the “native language” of mechatronics [...] Read more.
The main contribution of this article is creating synergy between subjects; this means that students use the same graphical tool in several subjects. So far, the bond graph has not been used in control theory, but it is the “native language” of mechatronics engineers, so we would like to introduce it into the teaching of control theory. The bond graph method is proposed as a novel teaching method to teach mechatronics subjects in the paper. The bond graph is a graphical alternative to ordinary differential equations from a mathematical standpoint. Traditionally, control theory employs ordinary differential equations, as they are familiar to control theorists. However, mathematically, both approaches are equivalent but require a slightly different approach in their application. This article highlights the mathematical similarities between the two approaches while emphasizing the distinctions in graphical representation. Another contribution is that the PID and sliding mode controller are represented using the bond graph method. In the meantime, through the use of practical examples, we effectively illustrate how the same problem can be solved using either approach. In the training materials, the PID controller and an adaptive robust sliding mode controller (ARSMC) with the bond graph are utilized as examples to demonstrate synergy in mechatronics. Finally, we present proof that mechatronic engineers achieve superior outcomes when utilizing the bond graph approach, based on test results from undergraduate students. Full article
(This article belongs to the Special Issue Control and Mechanical System Engineering)
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21 pages, 7233 KiB  
Article
Intelligent-PID with PD Feedforward Trajectory Tracking Control of an Autonomous Underwater Vehicle
by Zafer Bingul and Kursad Gul
Machines 2023, 11(2), 300; https://doi.org/10.3390/machines11020300 - 17 Feb 2023
Cited by 18 | Viewed by 3162
Abstract
This paper investigates the model-free trajectory tracking control problem for an autonomous underwater vehicle (AUV) subject to the ocean currents, external disturbances, measurement noise, model parameter uncertainty, initial tracking errors, and thruster malfunction. A novel control architecture based on model-free control principles is [...] Read more.
This paper investigates the model-free trajectory tracking control problem for an autonomous underwater vehicle (AUV) subject to the ocean currents, external disturbances, measurement noise, model parameter uncertainty, initial tracking errors, and thruster malfunction. A novel control architecture based on model-free control principles is presented to guarantee stable and precise trajectory tracking performance in the complex underwater environment for AUVs. In the proposed hybrid controller, intelligent-PID (i-PID) and PD feedforward controllers are combined to achieve better disturbance rejections and initial tracking error compensations while keeping the trajectory tracking precision. A mathematical model of an AUV is derived, and ocean current dynamics are included to obtain better fidelity when examining ocean current effects. In order to evaluate the trajectory tracking control performance of the proposed controller, computer simulations are conducted on the LIVA AUV with a compelling trajectory under various disturbances. The results are compared with the two degrees-of-freedom (DOF) i-PID, i-PID, and PID controllers to examine control performance improvements with the guaranteed trajectory tracking stability. The comparative results revealed that the i-PID with PD feedforward controller provides an effective trajectory tracking control performance and excellent disturbance rejections for the entire trajectory of the AUV. Full article
(This article belongs to the Special Issue Control and Mechanical System Engineering)
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Review

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17 pages, 408 KiB  
Review
Survey on Physiological Computing in Human–Robot Collaboration
by Celal Savur and Ferat Sahin
Machines 2023, 11(5), 536; https://doi.org/10.3390/machines11050536 - 09 May 2023
Cited by 1 | Viewed by 1933
Abstract
Human–robot collaboration has emerged as a prominent research topic in recent years. To enhance collaboration and ensure safety between humans and robots, researchers employ a variety of methods. One such method is physiological computing, which aims to estimate a human’s psycho-physiological state by [...] Read more.
Human–robot collaboration has emerged as a prominent research topic in recent years. To enhance collaboration and ensure safety between humans and robots, researchers employ a variety of methods. One such method is physiological computing, which aims to estimate a human’s psycho-physiological state by measuring various physiological signals such as galvanic skin response (GSR), electrocardiograph (ECG), heart rate variability (HRV), and electroencephalogram (EEG). This information is then used to provide feedback to the robot. In this paper, we present the latest state-of-the-art methods in physiological computing for human–robot collaboration. Our goal is to provide a comprehensive guide for new researchers to understand the commonly used physiological signals, data collection methods, and data labeling techniques. Additionally, we have categorized and tabulated relevant research to further aid in understanding this area of study. Full article
(This article belongs to the Special Issue Control and Mechanical System Engineering)
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