All Outputs (43)

Aeroelasticity of an aircraft wing with nonlinear energy sink (2024)
Journal Article
Wall, I., Amoozgar, M., & Popov, A. (2024). Aeroelasticity of an aircraft wing with nonlinear energy sink. Aerospace Science and Technology, 155(Part 2), Article 109684. https://doi.org/10.1016/j.ast.2024.109684

In this paper, the effectiveness of nonlinear energy sinks on enhancing aeroelastic stability and post-instability response of aircraft wings is investigated. The wing has two degrees of freedom in bending and torsion, and is modelled using an extend... Read More about Aeroelasticity of an aircraft wing with nonlinear energy sink.

Enhanced offshore wind resource assessment using hybrid data fusion and numerical models (2024)
Journal Article
Elshafei, B., Popov, A., & Giddings, D. (2024). Enhanced offshore wind resource assessment using hybrid data fusion and numerical models. Energy, 310, Article 133208. https://doi.org/10.1016/j.energy.2024.133208

Wind resource assessments are crucial for pre-construction planning of wind farms, especially offshore. This study proposes a novel hybrid model integrating Complete Ensemble Empirical Mode Decomposition with Adaptive Noise (CEEMDAN) and Empirical Wa... Read More about Enhanced offshore wind resource assessment using hybrid data fusion and numerical models.

Model refinements with experimental validation in piezoelectric plate actuators (2024)
Journal Article
Popov, A. A., Gungordu, B., & Jabbal, M. (2024). Model refinements with experimental validation in piezoelectric plate actuators. Journal of Sound and Vibration, 584, Article 118462. https://doi.org/10.1016/j.jsv.2024.118462

The axisymmetric vibration analysis of circular plates with piezoelectric layers and step changes in plate thickness is conducted. For the chosen configurations, it is necessary to solve a coupled system of differential equations for extensional and... Read More about Model refinements with experimental validation in piezoelectric plate actuators.

Structural–fluidic–acoustic computational modelling and experimental validation of piezoelectric synthetic jet actuators (2023)
Journal Article
Gungordu, B., Jabbal, M., & Popov, A. A. (2023). Structural–fluidic–acoustic computational modelling and experimental validation of piezoelectric synthetic jet actuators. International Journal of Heat and Fluid Flow, 104, Article 109215. https://doi.org/10.1016/j.ijheatfluidflow.2023.109215

In this study, coupled structural–fluidic–acoustic modelling of piezoelectric diaphragm driven synthetic jet actuators is conducted computationally for the first time. The aim is to demonstrate the importance of piezoelectric diaphragm structural mod... Read More about Structural–fluidic–acoustic computational modelling and experimental validation of piezoelectric synthetic jet actuators.

Enhancing Jet Velocity and Power Conversion Efficiency of Piezoelectric Synthetic Jet Actuators (2023)
Journal Article
Gungordu, B., Jabbal, M., & Popov, A. A. (2023). Enhancing Jet Velocity and Power Conversion Efficiency of Piezoelectric Synthetic Jet Actuators. AIAA Journal, 61(10), 4321–4331. https://doi.org/10.2514/1.j062930

The present work discusses an experimental investigation into the effect of piezoceramic employed to drive a synthetic jet actuator into a quiescent flow. The electromechanical coupling ratio of polycrystalline piezoceramics, lead zirconate–titanate... Read More about Enhancing Jet Velocity and Power Conversion Efficiency of Piezoelectric Synthetic Jet Actuators.

Vibration Attenuation of Rotating Blades Using a Non-Linear Energy Sink (2023)
Presentation / Conference Contribution
Wall, I. P., Amoozgar, M., & Popov, A. (2023, June). Vibration Attenuation of Rotating Blades Using a Non-Linear Energy Sink. Presented at AIAA AVIATION 2023 Forum, San Diego, CA and Online

The global climate crisis is placing higher demands on the performance of wind turbines. One of the promising methods to enhance the wind turbine performance is to increase the rotor diameter by having larger blades. However, the blade length is alwa... Read More about Vibration Attenuation of Rotating Blades Using a Non-Linear Energy Sink.

A framework for manufacturing system reconfiguration and optimisation utilising digital twins and modular artificial intelligence (2023)
Journal Article
Mo, F., Rehman, H. U., Monetti, F. M., Chaplin, J. C., Sanderson, D., Popov, A., Maffei, A., & Ratchev, S. (2023). A framework for manufacturing system reconfiguration and optimisation utilising digital twins and modular artificial intelligence. Robotics and Computer-Integrated Manufacturing, 82, Article 102524. https://doi.org/10.1016/j.rcim.2022.102524

Digital twins and artificial intelligence have shown promise for improving the robustness, responsiveness, and productivity of industrial systems. However, traditional digital twin approaches are often only employed to augment single, static systems... Read More about A framework for manufacturing system reconfiguration and optimisation utilising digital twins and modular artificial intelligence.

Offshore wind resource assessment based on scarce spatio-temporal measurements using matrix factorization (2022)
Journal Article
Elshafei, B., Peña, A., Popov, A., Giddings, D., Ren, J., Xu, D., & Mao, X. (2023). Offshore wind resource assessment based on scarce spatio-temporal measurements using matrix factorization. Renewable Energy, 202, 1215-1225. https://doi.org/10.1016/j.renene.2022.12.006

In the pre-construction of wind farms, wind resource assessment is of paramount importance. Measurements by lidars are a source of high-fidelity data. However, they are expensive and sparse in space and time. Contrarily, Weather Research and Forecast... Read More about Offshore wind resource assessment based on scarce spatio-temporal measurements using matrix factorization.

Automating the Generation of MBD-Driven Assembly Work Instruction Documentation for Aircraft Components (2022)
Presentation / Conference Contribution
Papadaki, A. R., Bacharoudis, K., Bainbridge, D., Burbage, N., Turner, A., Sanderson, D., Popov, A. A., & Ratchev, S. M. (2022, June). Automating the Generation of MBD-Driven Assembly Work Instruction Documentation for Aircraft Components. Presented at International Conference on Flexible Automation and Intelligent Manufacturing (FAIM 2022), Detroit, USA

The classical approach to the creation of assembly work instructions for high value, complex products is time-consuming and prone to error. It requires a process engineer to write the work instructions step-by-step and manually insert specific techni... Read More about Automating the Generation of MBD-Driven Assembly Work Instruction Documentation for Aircraft Components.

An efficient cost estimation framework for aerospace applications using Matlab/Simulink (2021)
Presentation / Conference Contribution
Bacharoudis, K., Wilson, H., Goodfellow-Jones, S., Popov, A., & Ratchev, S. An efficient cost estimation framework for aerospace applications using Matlab/Simulink. Presented at 54th CIRP Conference on Manufacturing Systems, 2021, Online

The ability to estimate costs and process times at the early stage of a design phase is of great importance to the product development process, enabling selection of the most suitable design and manufacturing concepts. Therefore, herein an efficient... Read More about An efficient cost estimation framework for aerospace applications using Matlab/Simulink.

Learning Feedforward Control for Industrial Manipulators (2021)
Presentation / Conference Contribution
Liu, C., Popov, A., Turner, A., Shires, E., & Ratchev, S. (2021, May). Learning Feedforward Control for Industrial Manipulators. Presented at IEEE 10th Data Driven Control and Learning Systems Conference (DDCLS 2021), Suzhou, China

In this work, an iterative learning control (ILC) algorithm is proposed for industrial manipulators. The proposed ILC algorithm works coordinately with the inverse dynamics of the manipulator and a feedback controller. The entire control scheme has t... Read More about Learning Feedforward Control for Industrial Manipulators.

Application of advanced simulation methods for the tolerance analysis of mechanical assemblies (2021)
Presentation / Conference Contribution
Bacharoudis, K., Popov, A., & Ratchev, S. (2020, December). Application of advanced simulation methods for the tolerance analysis of mechanical assemblies. Presented at 9th International Precision Assembly Seminar (IPAS 2020), Online

In the frame of a statistical tolerance analysis of complex assemblies, for example an aircraft wing, the capability to predict accurately and fast specified, very small quantiles of the distribution of the assembly key characteristic becomes crucial... Read More about Application of advanced simulation methods for the tolerance analysis of mechanical assemblies.

A new phenomenological constitutive model for thermoplastics (2021)
Journal Article
Zhu, H., Ou, H., & Popov, A. (2021). A new phenomenological constitutive model for thermoplastics. Mechanics of Materials, 157, Article 103817. https://doi.org/10.1016/j.mechmat.2021.103817

A new phenomenological constitutive model is proposed to predict the mechanical behaviour of thermoplastics in the current research. The new constitutive model and the method to determine the parameters of the model are introduced. In the new model,... Read More about A new phenomenological constitutive model for thermoplastics.

Implementation of dimensional management methodology and optimisation algorithms for pre-drilled hinge line interfaces of critical aero assemblies - A case study (2020)
Journal Article
Bacharoudis, K. C., Bainbridge, D., Turner, A., & Popov, A. A. (2021). Implementation of dimensional management methodology and optimisation algorithms for pre-drilled hinge line interfaces of critical aero assemblies - A case study. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 235(6-7), 1074-1083. https://doi.org/10.1177/0954405420978101

A dimensional management procedure is developed and implemented in this work to deal with the identification of the optimum hole diameter that needs to be pre-drilled in order to successfully join two subassemblies in a common hinge line interface wh... Read More about Implementation of dimensional management methodology and optimisation algorithms for pre-drilled hinge line interfaces of critical aero assemblies - A case study.

Tolerance allocation: A reliability based optimisation approach (2020)
Journal Article
Bacharoudis, K., Popov, A., & Ratchev, S. (2020). Tolerance allocation: A reliability based optimisation approach. Procedia Manufacturing, 51, 1038-1045. https://doi.org/10.1016/j.promfg.2020.10.146

Tolerance analysis and allocation are two activities of great importance in product development. The mathematical formulation of the latter concerns the establishment and solution of a constraint optimisation problem. In this work, making one step fo... Read More about Tolerance allocation: A reliability based optimisation approach.

Incremental sheet forming of thermoplastics: a review (2020)
Journal Article
Zhu, H., Ou, H., & Popov, A. (2020). Incremental sheet forming of thermoplastics: a review. International Journal of Advanced Manufacturing Technology, 111, 565-587. https://doi.org/10.1007/s00170-020-06056-5

Incremental sheet forming (ISF) is a promising flexible manufacturing process, which has been tested in sheet forming of various metallic materials. Although ISF based forming of thermoplastics is relatively new, it has drawn considerable interests a... Read More about Incremental sheet forming of thermoplastics: a review.

A phenomenological constitutive model for the viscoelastic deformation of elastomers (2020)
Journal Article
Annarasa, V., Popov, A. A., & De Focatiis, D. S. A. (2020). A phenomenological constitutive model for the viscoelastic deformation of elastomers. Mechanics of Time-Dependent Materials, 24(4), 463-479. https://doi.org/10.1007/s11043-020-09452-2

This study proposes a one-dimensional constitutive model for elastomeric materials based on recent observations regarding the separation of elastic and viscous contributions in uniaxial cyclic tensile experiments on EPDM rubber. The focus is on captu... Read More about A phenomenological constitutive model for the viscoelastic deformation of elastomers.

A probabilistic approach for trade-off analysis of composite wing structures at the conceptual phase of design (2019)
Presentation / Conference Contribution
Bacharoudis, K., Turner, T., Popov, A., & Ratchev, S. (2019, January). A probabilistic approach for trade-off analysis of composite wing structures at the conceptual phase of design. Presented at 8th IFIP WG 5.5 International Precision Assembly Seminar, IPAS 2018, Chamonix, France

One of the major elements when performing a design for manufacturing and assembly methodology is the cost modelling method. A probabilistic cost approach is introduced herein for the series production of a composite wing structure. The proposed metho... Read More about A probabilistic approach for trade-off analysis of composite wing structures at the conceptual phase of design.

Hierarchical Control for Trajectory Generation and Tracking Via Active Front Steering (2019)
Journal Article
Hellewell, J. S., Popov, A. A., & Burnett, G. E. (2020). Hierarchical Control for Trajectory Generation and Tracking Via Active Front Steering. Journal of Dynamic Systems, Measurement, and Control, 142(1), 1-10. https://doi.org/10.1115/1.4044620

A new hierarchical model predictive controller for autonomous vehicle steering control is presented. The controller generates a path of shortest distance by determining lateral coordinates on a longitudinal grid, while respecting road bounds. This pa... Read More about Hierarchical Control for Trajectory Generation and Tracking Via Active Front Steering.

Advanced Assembly Solutions for the Airbus RACER Joined-Wing Configuration (2019)
Presentation / Conference Contribution
Bainbridge, D., Bacharoudis, K., Cini, A., Turner, A., Popov, A., & Ratchev, S. (2019, September). Advanced Assembly Solutions for the Airbus RACER Joined-Wing Configuration. Presented at Aerotech Europe Conference, Bordeaux, France

The Rapid And Cost Effective Rotorcraft (RACER) is being developed by Airbus Helicopters (AH) to demonstrate a new Vertical TakeOff and Landing configuration to fill the mobility gap between conventional helicopters and aeroplanes. RACER is a compoun... Read More about Advanced Assembly Solutions for the Airbus RACER Joined-Wing Configuration.