Article
Construction & Building Technology
Mariusz Ostrowski, Bartlomiej Blachowski, Blazej Poplawski, Dominik Pisarski, Grzegorz Mikulowski, Lukasz Jankowski
Summary: A novel modal control strategy utilizing semi-actively lockable joints is proposed for directed energy flow between vibration modes. This strategy shows better performance and efficiency compared to traditional methods in vibration attenuation and energy scavenging.
STRUCTURAL CONTROL & HEALTH MONITORING
(2021)
Article
Acoustics
Xiang Shi, Qingyang Yu, Zhiwei Wu, Jin-Yang Li, Songye Zhu
Summary: This study aims to develop an innovative self-powered active suspension using a dual-function active electromagnetic damper (DF-AEMD). The DF-AEMD is capable of providing force tracking and energy harvesting functions simultaneously, achieving better performance than traditional semi-active dampers in terms of force tracking accuracy and energy harvesting efficiency.
JOURNAL OF SOUND AND VIBRATION
(2024)
Article
Energy & Fuels
Magdy Roman, Rowida Sobh, Momtaz Sedrak, Mohamed Ali
Summary: The study proposes a novel semi-active approach for tuning bladeless wind turbines based on vortex-induced vibration to widen the effective power generation region, by adjusting the length of elastic member and structural natural frequency. This approach significantly broadens the effective wind speed range and improves turbine performance.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2021)
Article
Construction & Building Technology
Himan Hojat Jalali, Maziar Fahimi Farzam, Seyyed Ali Mousavi Gavgani, Gebrail Bekdas
Summary: In this study, comprehensive research on control algorithms with soil-structure interaction (SSI) effects is conducted. The algorithms used include Clipped-Optimal Control (COC), Lyapunov, Bang-Bang, and Fuzzy with two Passive-On (P-On) and Passive-Off (P-Off) cases. The characteristics of different types of soil are investigated, and the efficiency of these algorithms in determining the appropriate voltage and control force of the Magneto-rheological Damper (MR) is evaluated using a 5-story linear shear building and various ground motions. The results show that the COC and Bang-Bang algorithms have better performance and provide a robust method for semi-active control of structures equipped with MR dampers.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Chemistry, Analytical
Jorge A. Reyes-Avendano, Ciro Moreno-Ramirez, Carlos Gijon-Rivera, Hugo G. Gonzalez-Hernandez, Jose Luis Olazagoitia
Summary: This study investigates how Energy Harvesting Shock Absorbers (EHSA) can replicate the behavior of traditional suspension systems by continuously adjusting electrical parameters, aiming to optimize the regenerative damper to adequately replicate a target damper curve.
Article
Engineering, Mechanical
Yinlong Hu, Tianyang Hua, Michael Z. Q. Chen, Shang Shi, Yonghui Sun
Summary: This paper analyzes the instability of semi-active control systems caused by the utilization of semi-active inerters and proposes a constructive method to prove the unstable effect. It is theoretically proven that improper control of inertance in semi-active inerters can induce instability, which remains valid even with inerter nonlinearities considered. This highlights the importance of not neglecting stability issues in the practical application of semi-active inerters.
NONLINEAR DYNAMICS
(2021)
Article
Engineering, Electrical & Electronic
An Li, Keiju Goto, Yuusuke Kobayashi, Yushin Hara, Yu Jia, Yu Shi, Constantinos Soutis, Hiroki Kurita, Fumio Narita, Keisuke Otsuka, Kanjuro Makihara
Summary: In this work, a switching control energy harvesting method using magnetostrictive materials is proposed, which enables large-scale kinetic to electrical energy conversion. The method combines a magnetostrictive material, an electric circuit, and an electronic switch. Numerical simulations were conducted to optimize the parameters, and experimental measurements validated the harvesting performance using a 3.75 m vibrated cantilever truss structure. The proposed method achieved an electrical energy of approximately 45μJ in 20.0 s, which is seven times more than that of the conventional passive method.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Thermodynamics
Penglei Ma, Guijie Liu, Honghui Wang, Yong Wang, Yudong Xie
Summary: Turbines based on oscillating foils are more suitable for shallow waters due to their advantages. A hydraulic system designed for semi-passive oscillating foils was examined using co-simulations. The study found that mechanical parameters significantly impact heaving response and power output performance, with unstable heaving response decreasing energy harvesting efficiency.
Article
Engineering, Multidisciplinary
Jin-Yang Li, Songye Zhu
Summary: This study introduces an unprecedented self-powered active vibration control system, which solves the problem of substantial power demand in traditional vibration control techniques. The self-powering ability of the system is confirmed through power flow analysis, and the feasibility and effectiveness are validated through experiments.
Article
Thermodynamics
Reza Azmi, Mehdi Mirzaei, Amir Habibzadeh-Sharif
Summary: This paper presents a new optimal control algorithm for the energy-regenerative active suspension system (RASS) that considers both energy regeneration and ride comfort. The proposed algorithm employs a realistic nonlinear model of the suspension system and achieves high performance. The results show that the proposed control strategy delivers lower acceleration and significantly increases harvested energy compared to previous strategies.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Mechanics
G. Pepe, A. Doria, N. Roveri, A. Carcaterra
Summary: This paper examines the power limits of piezoelectric energy harvesters applied to automotive units and estimates the upper power limit for powering small devices on cars through analysis supported by experimental data. By comparing passive optimally tuned piezoelectric harvesters with semi-active controlled ones, the study concludes that a new control strategy can increase the total energy storage harvested from car vibrations, but the real advantage lies in striking a balance between the harvested power and the cost of additional hardware mass transport.
ARCHIVE OF APPLIED MECHANICS
(2023)
Article
Materials Science, Multidisciplinary
Seh-Hoon Chung, Jihoon Chung, Banseok Kim, Seamin Kim, Sangmin Lee
Summary: The development of a screw pump TENG (SP-TENG) that can generate electricity by pumping water has been optimized by analyzing contact surface area between water and screw in different screw rotational velocity and electrical difference from different electrode area. The SP-TENG can light four LEDs and activate a temperature sensor, while also enabling water circulation to improve the ecosystem, making it an ecofriendly device that can harvest energy and induce self-purification of water.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Construction & Building Technology
Majd Javanbakht, Shaohong Cheng, Faouzi Ghrib
Summary: This study proposes an adaptive output-only control scheme for cable vibration control using semi-active MR dampers. By optimizing the SAC parameters and developing a real-time force tracking strategy, the proposed control system effectively mitigates cable vibration under various types of excitation and demonstrates robustness.
STRUCTURAL CONTROL & HEALTH MONITORING
(2022)
Article
Mechanics
Fuwang Zhao, Zhaokun Wang, M. Nafees Mumtaz Qadri, Omer Khan, Adnan Munir, Aamer Shahzad, Hui Tang
Summary: A numerical investigation was conducted to analyze the interactions between semi-active tandem flapping foils at different tandem distances with a chord-based Reynolds number of 1100. The results showed that when the tandem distance was less than 1.5 chord lengths and released in-phase, both foils exhibited terminal periodic motions with a nonzero mean stagger distance. However, under other conditions, the foils ended up with periodic flapping motions without stagger. The wake of the fore foil significantly influenced the performance of the aft foil, resulting in either lower power consumption or net energy consumption depending on the wake-foil interaction.
Article
Engineering, Ocean
Satheesh Jothinathan, Deepak Kumar
Summary: The effect of a lever arm arrangement on the dynamic response of jacket structure with a Magneto-Rheological damper is investigated. The study uses numerical modeling and a Fuzzy Logic Controller optimized with a Genetic Algorithm to control the damper.
APPLIED OCEAN RESEARCH
(2022)
Article
Acoustics
M. Dal Borgo, M. Ghandchi Tehrani, S. J. Elliott
JOURNAL OF SOUND AND VIBRATION
(2020)
Article
Engineering, Mechanical
Domenico Lisitano, Elvio Bonisoli
Summary: This research proposes a method for identifying dissipative models for multi degrees of freedom mechanical systems with a single damping nonlinearity. By extending the Stabilised Layers Method to handle damping nonlinearities, the linear and nonlinear damping matrices of the system can be identified. The method theoretically derives the identification of nonlinear damping forces based on powers of displacement and velocity.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
Article
Chemistry, Multidisciplinary
Domenico Lisitano, Elvio Bonisoli, Carmine Tommaso Recchiuto, Giovanni Gerardo Muscolo
Summary: This paper proposes an approach to reduce the vibrations of a biped robot's head without affecting its dynamic locomotion properties, and tests it on the flexible-biped-wheeled robot Rollo, achieving impressive results.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Mechanical
Elvio Bonisoli, Gabriele Marcuccio, Simone Venturini
Summary: This paper proposes a method to estimate the applied fitting force and interference between press-fitted components using the stress stiffening effect, which is independent of component characteristics and based solely on experimental data. By developing a ranking strategy for natural frequencies most affected by the stress stiffening effect and comparing interference polynomial chaos expansion meta-models, the effectiveness of the selection approach is demonstrated and tested against an industrial case study involving press-fitted automotive steel wheel samples.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
Article
Engineering, Mechanical
Jackie Quan Teoh, M. Ghandchi Tehrani, Neil S. Ferguson, Stephen J. Elliott
Summary: This paper considers the problem of robust pole placement in active structural vibration control using the receptance method. Expressions for the eigenvalue sensitivities to parametric perturbations are derived and subsequently minimised to improve the performance robustness of the control system. The proposed algorithm includes curve fitting and polynomial fitting techniques to calculate the eigenvalue sensitivity from the structural frequency response functions, avoiding modelling uncertainty.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Engineering, Mechanical
Elvio Bonisoli, Domenico Lisitano, Luca Dimauro
Summary: This paper proposes a method to detect the component mode-shapes responsible for undesired dynamics in multibody systems, based on an assembly-to-components modal approach. The method is suitable for both numerical model and experimental applications. It can identify the critical components requiring structural optimization and is especially useful for systems that require fast and continuous optimization, such as high-performance racing vehicles and new improved releases of industrial complex machines.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Elvio Bonisoli, Luca Dimauro, Simone Venturini, Salvatore Paolo Cavallaro
Summary: This paper extends the application of laser profilometer from static to dynamic measurements and investigates the nonlinear dynamic behavior of a cantilever beam, where nonlinearity is introduced by permanent magnet interactions or non-holonomic contact. Various transforms are used to analyze the frequency content and advantages and disadvantages of different methods are compared. A Multi-Phi approach is proposed to describe the time evolution of nonlinear systems using linearized systems. Two linearized models are developed to describe the dynamic behavior of different Euler-Bernoulli cantilever beam configurations. Comparison between the experimental data of nonlinear systems and linear systems evaluates the effects of introduced nonlinearities on the overall dynamic properties.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Electrical & Electronic
Mattia Filippini, Riccardo Torchio, Piergiorgio Alotto, Elvio Bonisoli, Luca Dimauro, Maurizio Repetto
Summary: This article presents a novel and patented alternative to mechanical differentials based on magnetic gears (MGs), which offer advantages such as reduced maintenance, absence of lubrication, and high efficiency. The article describes the operation principle, provides a dynamic model, presents a prototype, and validates simulations with experimental results.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2023)
Article
Engineering, Mechanical
Simone Venturini, Elvio Bonisoli, Carlo Rosso, Mauro Velardocchia
Summary: This paper proposes a digital twin of an automotive steel wheel biaxial test bench for studying wheel dynamic behavior and assessment conditions. The methodology uses finite element method decoupled models for tire-rim interactions and considers the imposed kinematics occurring in the test bench after a calibration process. The approach is validated through numerical and experimental comparisons.
MECHANISM AND MACHINE THEORY
(2024)
Proceedings Paper
Engineering, Mechanical
Luca Dimauro, Elvio Bonisoli, Maurizio Repetto
Summary: This paper addresses the analysis of torsional dynamic behavior in a magnetic transmission called planetary magnetic gear (PMG). A test bench for testing the magneto-mechanical efficiency of the PMG prototype has been designed and realized. The results have shown that the efficiency is practically independent from the power direction, which is different from traditional mechanical transmissions.
ROTATING MACHINERY, OPTICAL METHODS & SCANNING LDV METHODS, VOL 6
(2023)
Proceedings Paper
Engineering, Mechanical
E. Bonisoli, A. D. Vella, S. Venturini
Summary: This paper investigates the modal behavior of a bike spoke wheel, focusing on the effects of spoke pretension, boundary conditions, and parameter uncertainties. A linearized parametric finite element model is developed using the open-source code LUPOS in Matlab environment. Experimental modal analysis is conducted on the wheel, and a variational approach is applied to investigate the role of system uncertainties on the modal parameters. The study shows that spoke pretension, cross contact, and boundary conditions have significant effects on the identification of modal parameters.
MODEL VALIDATION AND UNCERTAINTY QUANTIFICATION, VOL 3
(2023)
Proceedings Paper
Engineering, Aerospace
Elvio Bonisoli, Marco Casazza, Domenico Lisitano, Stefano Averame, Marco Carlo Masoero, Louena Shtrepi
Summary: This chapter focuses on the qualitative identification of violin sonic areas generating different musical notes using the Simcenter Sound Camera. The experiment confirms the importance of the I' holes and air vibrations of the violin as the main sound sources and signature vibration modes.
SENSORS AND INSTRUMENTATION, AIRCRAFT/AEROSPACE AND DYNAMIC ENVIRONMENTS TESTING, VOL 7
(2023)
Proceedings Paper
Green & Sustainable Science & Technology
Paride Cavallone, Andrea Botta, Elvio Bonisoli, Giuseppe Quaglia
Summary: The paper presents experimental tests of a manual wheelchair, Handwheelchair.Q, that utilizes an innovative propulsion system to increase user autonomy and promote physical activity and sport practice.
PROCEEDINGS OF I4SDG WORKSHOP 2021: IFTOMM FOR SUSTAINABLE DEVELOPMENT GOALS
(2022)
Article
Engineering, Mechanical
Domenico Lisitano, Janko Slavic, Elvio Bonisoli, Miha Boltezar
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2020)
Proceedings Paper
Engineering, Mechanical
Elvio Bonisoli, Domenico Lisitano, Luca Dimauro, Lorenzo Peroni
DYNAMIC SUBSTRUCTURES, VOL 4
(2020)
Article
Acoustics
Sandip Chajjed, Mohammad Khalil, Dominique Poirel, Chris Pettit, Abhijit Sarkar
Summary: This paper reports the generalization of the Bayesian formulation of the flutter margin method, which improves the predictive performance by incorporating the joint prior of aeroelastic modal parameters. The improved algorithm reduces uncertainties in predicting flutter speed and can cut cost by reducing the number of flight tests.
JOURNAL OF SOUND AND VIBRATION
(2024)
Article
Acoustics
Pascal Zeise, Bernhard Schweizer
Summary: Air ring bearings are an improved version of classical air bearings, providing better damping behavior and allowing operation above the linear threshold speed of instability. However, there is a risk of dangerous vibrations in certain rotor systems, which can be addressed by considering ring tilting effects.
JOURNAL OF SOUND AND VIBRATION
(2024)
Article
Acoustics
Zbynek Sika, Jan Krivosej, Tomas Vyhlidal
Summary: This paper presents a novel design of a compact six degrees of freedom active vibration absorber with six identical eigenfrequencies. The objective is to completely suppress the vibration of a machine structure with six motion components. By utilizing a Stewart platform structure equipped with six active legs, a spatial unifrequency absorber with six identical eigenfrequencies is achieved. The design is optimized using a correction feedback and active delayed resonator feedback.
JOURNAL OF SOUND AND VIBRATION
(2024)
Article
Acoustics
Kai Li, Yufeng Liu, Yuntong Dai, Yong Yu
Summary: This paper presents a novel light-powered self-oscillating liquid crystal elastomer (LCE) bow that can self-oscillate continuously and periodically under steady illumination. The dynamics of the LCE bow are theoretically investigated and numerical calculations predict its motion regimes. The suggested LCE bow offers potential advantages in terms of simple structure, customizable size, flexible regulation, and easy assembly.
JOURNAL OF SOUND AND VIBRATION
(2024)
Article
Acoustics
Carmelo Rosario Vindigni, Giuseppe Mantegna, Calogero Orlando, Andrea Alaimo
Summary: In this study, a simple adaptive flutter suppression system is designed to increase the operative speed range of a wing-aileron aeroelastic plant. The system achieves almost strictly passivity by using a parallel feed-forward compensator implementation and the controller parameters are optimized using a population decline swarm optimization algorithm. Numerical simulations prove the effectiveness of the proposed simple adaptive flutter suppression architecture in different flight scenarios.
JOURNAL OF SOUND AND VIBRATION
(2024)
Article
Acoustics
Nicco Ulbricht, Alain Boldini, Peng Zhang, Maurizio Porfiri
Summary: The quantification of fluid-structure interactions in marine structures is crucial for their design and optimization. In this study, an analytical solution for the free vibration of a bidirectional composite in contact with a fluid is proposed. By imposing continuity conditions and boundary conditions, the coupled fluid-structure problem is solved and applied to sandwich structures in naval construction, offering insights into the effects of water on mode shapes and through-the-thickness profiles of displacement and stress.
JOURNAL OF SOUND AND VIBRATION
(2024)
Article
Acoustics
Shahram Hadian Jazi, Mostafa Hadian, Keivan Torabi
Summary: Non-uniformity and damage are the main focus in studying vibrations of beam elements. An exact closed-form explicit solution for the transverse displacement of a nonuniform multi-cracked beam is introduced using generalized functions and distributional derivative concepts. By introducing non-dimensional parameters, the motion equation and its closed-form solution are obtained based on four fundamental functions. The impact of crack count, location, intensity, and boundary conditions on natural frequency and mode shape is evaluated through numerical study.
JOURNAL OF SOUND AND VIBRATION
(2024)
Article
Acoustics
Eugenio Tramacere, Marius Pakstys, Renato Galluzzi, Nicola Amati, Andrea Tonoli, Torbjoern A. Lembke
Summary: This paper proposes the experimental stabilization of electrodynamic maglev systems by means of passive components, providing key technological support for the Hyperloop concept of high-speed and sustainable transportation.
JOURNAL OF SOUND AND VIBRATION
(2024)
Article
Acoustics
Pengfei Deng, Xing Tan, He Li
Summary: In this paper, the authors improve the surface morphology method and study the bit-rock interaction model between the rock and the PDC bit, taking into account the impact of blade shape and cutter arrangement. They establish a dynamic model for a deep drilling system equipped with an arbitrary shape PDC bit and propose a stability prediction method. The results show that the shape of the blades and arrangement of the cutters on the PDC bit significantly affect the nonlinear vibration of the drilling system.
JOURNAL OF SOUND AND VIBRATION
(2024)
Article
Acoustics
Salvador Rodriguez-Blanco, Javier Gonzalez-Monge, Carlos Martel
Summary: In modern LPT designs, the simultaneous presence of forced response and flutter in different operation regimes is unavoidable. Recent evidence suggests that the traditional linear superposition method may be overly conservative. This study examines the flutter and forced response interaction in a realistic low pressure turbine rotor and confirms that the actual response is much smaller than that predicted by linear superposition.
JOURNAL OF SOUND AND VIBRATION
(2024)
Article
Acoustics
Kabilan Baskaran, Nur Syafiqah Jamaluddin, Alper Celik, Djamel Rezgui, Mahdi Azarpeyvand
Summary: This study investigates the impact of the number of blades on the aeroacoustic characteristics and aerodynamic performance of propellers used in urban air mobility vehicles. The results show that different blade numbers exhibit distinct noise levels, providing valuable insights for further research on propeller noise and aerodynamic performance.
JOURNAL OF SOUND AND VIBRATION
(2024)
Article
Acoustics
Yongbo Peng, Peifang Sun
Summary: This study focuses on the reliability-based design optimization (RBDO) of the tuned mass-damper-inerter (TMDI) system under non-stationary excitations. The performance of the optimized TMDI system is evaluated using probability density evolution analysis. The results demonstrate the technical advantages of TMDI, including high vibration mitigation performance, considerable mass reduction, and less stroke demand.
JOURNAL OF SOUND AND VIBRATION
(2024)
Article
Acoustics
Guanfu Lin, Zhong-Rong Lu, Jike Liu, Li Wang
Summary: Vision-based measurement is an emerging method that enables full-field measurement with non-contact and high spatial resolution capabilities. This paper presents a single-camera method for measuring out-of-plane vibration of plate structures using motion-parametric homography to capture image variation and displacement response.
JOURNAL OF SOUND AND VIBRATION
(2024)
Article
Acoustics
Bronislaw Czaplewski, Mateusz Bocian, John H. G. Macdonald
Summary: Despite two decades of study, there is currently no model that can quantitatively explain pedestrian-generated lateral forces. This research proposes a foot placement control law based on empirical data to calibrate and generalize the rigid-leg inverted pendulum model (IPM) for predicting lateral structural stability.
JOURNAL OF SOUND AND VIBRATION
(2024)
Article
Acoustics
Justine Carpentier, Jean-Hugh Thomas, Charles Pezerat
Summary: This paper proposes an improved method for the identification of vibration sources on a car window using the corrected force analysis technique. By redefining inverse methods in polar coordinates, more accurate results can be obtained.
JOURNAL OF SOUND AND VIBRATION
(2024)
