Mastering Vibrations: The Latest Breakthroughs in Control for Mechanical Systems

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

Deadline for manuscript submissions: 31 August 2025 | Viewed by 1713

Special Issue Editor


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Guest Editor
Mechanics of Adaptive Systems, Institute for Computational Engineering, Faculty of Civil and Environmental Engineering, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
Interests: controller design for smart structures and systems; active vibration control; modeling of active materials for smart structures; parameter and system identification; reconnaissance in mechanized tunneling; structural health monitoring; machine learning

Special Issue Information

Dear Colleagues,

Allow me to recall the ingenious statement by Nikola Tesla, “If you want to find the secrets of the universe, think in terms of energy, frequency and vibration”. The goal of this Special Issue is to bring together researchers aiming to better understand and master vibration phenomena in mechanical systems with a focus on advances in vibration control. The synergy of active elements integrated with appropriate control strategies can greatly contribute to bringing mechanical systems to their desired operating states in terms of suppressing unwanted vibrations but also in terms of amplifying useful ones. Original contributions related but not limited to the following topics are welcome:

  • The modeling and simulation of vibration phenomena in mechanical systems;
  • Linear and nonlinear vibration;
  • Active and passive vibration control;
  • Advanced control systems for vibration control;
  • Vibration control implementation and experimental investigations;
  • Mastering vibrations in robotic systems;
  • NVH in autonomous vehicles;
  • Machine learning-based approaches to vibration control.

Prof. Dr. Tamara Nestorović
Guest Editor

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Keywords

  • linear and nonlinear vibration phenomena
  • dynamics, modeling and simulaiton
  • advanced control, experimental investigation and implementation

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Published Papers (4 papers)

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Research

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17 pages, 1029 KiB  
Article
Design Technique on Speed Control Combined with an Inertial Element for Vibration Suppression
by Guoguang Zhang, Shuntai Xie, Peng Hou and Xiaoguang Wang
Machines 2025, 13(7), 573; https://doi.org/10.3390/machines13070573 - 1 Jul 2025
Abstract
The suppression of mechanical resonance stands as the most crucial issue in enhancing system performance. In this study, based on a speed control system, the mechanisms of vibration suppression both with and without a first-order inertial element are analyzed and compared, and a [...] Read more.
The suppression of mechanical resonance stands as the most crucial issue in enhancing system performance. In this study, based on a speed control system, the mechanisms of vibration suppression both with and without a first-order inertial element are analyzed and compared, and a pole assignment method featuring an identical radius is put forward. Through an optimized design of pole assignment, the constraint conditions, control parameters, and applicable boundary of the first-order inertial element are explicitly derived in an analytical form. These derived results possess clear design significance and are very convenient for practical use. It is demonstrated that speed control with the first-order inertial element can effectively improve the underdamping performance. The proposed control method and the constrained optimization design of pole assignment are validated through experiments. Full article
18 pages, 2053 KiB  
Article
Optimization of Hybrid Machining of Nomex Honeycomb Structures: Effect of the CZ10 Tool and Ultrasonic Vibrations on the Cutting Process
by Oussama Beldi, Tarik Zarrouk, Ahmed Abbadi, Mohammed Nouari, Jamal-Eddine Salhi, Mohammed Abbadi and Mohamed Barboucha
Machines 2025, 13(6), 515; https://doi.org/10.3390/machines13060515 - 13 Jun 2025
Viewed by 293
Abstract
Machining Nomex honeycomb composite structures is crucial for manufacturing components that meet stringent industry requirements. However, the complex characteristics of this material require specialized machining techniques to avoid defects, ensure optimal surface quality, and preserve the integrity of the cutting tool. Thus, hybrid [...] Read more.
Machining Nomex honeycomb composite structures is crucial for manufacturing components that meet stringent industry requirements. However, the complex characteristics of this material require specialized machining techniques to avoid defects, ensure optimal surface quality, and preserve the integrity of the cutting tool. Thus, hybrid ultrasonic-vibration-assisted machining (HUSVAM) technology, using a CZ10 combined cutting tool, was introduced to overcome these limitations. To this end, a 3D numerical model based on the finite element method, developed using Abaqus/Explicit 2017 software, allows us to simulate the interaction between the cutting tool and the thin walls of the structure to be machined. The objective of this study was to validate a numerical model through experimental tests while quantifying the impact of critical machining parameters, including the rotation speed and tilt angle, on process performance, in terms of surface finish, tool wear, cutting force components and chip size. The numerical results demonstrated that HUSVAM technology allows for a significant reduction in the cutting force components, with a decrease of between 12% and 35%. Furthermore, this technology improves cutting quality by limiting the deformation and tearing of cell walls, while extending tool life through a significant reduction in wear. These improvements thus contribute to a substantial optimization of the overall efficiency of the machining process. Full article
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19 pages, 1077 KiB  
Article
Integral Linear Quadratic Regulator Sliding Mode Control for Inverted Pendulum Actuated by Stepper Motor
by Hiep Dai Le and Tamara Nestorović
Machines 2025, 13(5), 405; https://doi.org/10.3390/machines13050405 - 12 May 2025
Viewed by 361
Abstract
Stabilization and tracking problems for cart inverted pendulums under disturbances and uncertainties have posed significant challenges for control engineers. While various controllers have been designed for an inverted pendulum, they often overlook the calibration error of the pendulum angle in practical implementations, which [...] Read more.
Stabilization and tracking problems for cart inverted pendulums under disturbances and uncertainties have posed significant challenges for control engineers. While various controllers have been designed for an inverted pendulum, they often overlook the calibration error of the pendulum angle in practical implementations, which degrades the control performance. Incorrect calibration of the pendulum angle in upright equilibrium position generates an offset of cart position errors. To solve this problem, an augmented model comprising integral cart position errors was first constructed. Afterwards, a sliding mode control was designed for this system based on a linear quadratic controller, to facilitate implementation. Additionally, a stepper motor was employed in the inverted pendulum to enhance the control performance and widen applicability in industrial settings. The effectiveness and performance of the proposed controller were validated by means of experimental studies, focusing on stabilization control and tracking control of a cart inverted pendulum actuated by a stepper motor. Full article
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Review

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38 pages, 5185 KiB  
Review
Review of Agricultural Machinery Seat Semi-Active Suspension Systems for Ride Comfort
by Xiaoliang Chen, Zhelu Wang, Haoyou Shi, Nannan Jiang, Sixia Zhao, Yiqing Qiu and Qing Liu
Machines 2025, 13(3), 246; https://doi.org/10.3390/machines13030246 - 18 Mar 2025
Cited by 2 | Viewed by 728
Abstract
This paper systematically reviews research progress in semi-active suspension systems for agricultural machinery seats, focusing on key technologies and methods to enhance ride comfort. First, through an analysis of the comfort evaluation indicators and constraints of seat suspension systems, the current applications of [...] Read more.
This paper systematically reviews research progress in semi-active suspension systems for agricultural machinery seats, focusing on key technologies and methods to enhance ride comfort. First, through an analysis of the comfort evaluation indicators and constraints of seat suspension systems, the current applications of variable stiffness and damping components, as well as semi-active control technologies, are outlined. Second, a comparative analysis of single control methods (such as PID control, fuzzy control, and sliding mode control) and composite control methods (such as fuzzy PID control, intelligent algorithm-based integrated control, and fuzzy sliding mode control) is conducted, with control mechanisms explained using principle block diagrams. Furthermore, key technical challenges in current research are summarized, including dynamic characteristic optimization design, adaptability to complex operating environments, and the robustness of control algorithms. Further research could explore the refinement of composite control strategies, the integrated application of intelligent materials, and the development of intelligent vibration damping technologies. This paper provides theoretical references for the optimization design and engineering practice of agricultural machinery suspension systems. Full article
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