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Effect of nonlinear electrostatic forces on the dynamic behaviour of a capacitive ring-based Coriolis Vibrating Gyroscope under severe shock (2018)
Journal Article
Chouvion, B., McWilliam, S., & Popov, A. A. (2018). Effect of nonlinear electrostatic forces on the dynamic behaviour of a capacitive ring-based Coriolis Vibrating Gyroscope under severe shock. Mechanical Systems and Signal Processing, 106, https://doi.org/10.1016/j.ymssp.2017.12.043

This paper investigates the dynamic behaviour of capacitive ring-based Coriolis Vibrating Gyroscopes (CVGs) under severe shock conditions. A general analytical model is developed for a multi-supported ring resonator by describing the in-plane ring re... Read More about Effect of nonlinear electrostatic forces on the dynamic behaviour of a capacitive ring-based Coriolis Vibrating Gyroscope under severe shock.

Time-domain aeroelastic model for compound helicopter propeller-wing configuration (2017)
Presentation / Conference
Wang, Z., Anobile, A., & Popov, A. A. (2017, October). Time-domain aeroelastic model for compound helicopter propeller-wing configuration. Paper presented at Aerospace Europe CEAS 2017 Conference, Bucharest, Romania

A simplified numerical model for time-domain aeroelastic analysis of a wing structure in a propeller-wing configuration is described in the paper. A linear beam model with deformable elastic axis under torsional deformation and out-of-plane bending i... Read More about Time-domain aeroelastic model for compound helicopter propeller-wing configuration.

Variation analysis of automated wing box assembly (2017)
Journal Article
Bakker, O. J., Popov, A. A., & Ratchev, S. M. (2017). Variation analysis of automated wing box assembly. Procedia CIRP, 69, 406-411. https://doi.org/10.1016/j.procir.2017.02.034

Manufacturing process variability is a major issue of concern in high value industries. Manufacturing small batches and in some cases batches of one is a very expensive process with specific requirements for manufacturing operations, tooling and fixt... Read More about Variation analysis of automated wing box assembly.

Control of Vibration Using Compliant Actuators (2017)
Journal Article
Mareta, S., Halim, D., & Popov, A. A. (2017). Control of Vibration Using Compliant Actuators. Journal of Vibration and Acoustics, 139(5), 1-13. https://doi.org/10.1115/1.4036499

© 2017 by ASME. This work proposes a method for controlling vibration using compliant-based actuators. The compliant actuator combines a conventional actuator with elastic elements in a series configuration. The benefits of compliant actuators for vi... Read More about Control of Vibration Using Compliant Actuators.

Flexible robot sealant dispensing cell using RGB-D sensor and off-line programming (2017)
Journal Article
Maiolino, P., Woolley, R., Branson, D. T., Benardos, P., Popov, A. A., & Ratchev, S. (in press). Flexible robot sealant dispensing cell using RGB-D sensor and off-line programming. Robotics and Computer-Integrated Manufacturing, 48, https://doi.org/10.1016/j.rcim.2017.04.004

In aerospace manufacture the accurate and robust application of sealant is an integral and challenging part of the manufacturing process that is still performed by human operator. Automation of this process is difficult and not cost effective due to... Read More about Flexible robot sealant dispensing cell using RGB-D sensor and off-line programming.

Redesign methodology for mechanical assembly (2017)
Journal Article
El-Nounu, A., Popov, A., & Ratchev, S. (in press). Redesign methodology for mechanical assembly. Research in Engineering Design, https://doi.org/10.1007/s00163-017-0255-6

Design for assembly is the concept of carrying out critical thought early in the design stage to create assembly easement at the production stage. In the aerospace industry, products have very long lives, frequently being optimised rather than introd... Read More about Redesign methodology for mechanical assembly.

Multibody dynamics simulation of an all-wheel-drive motorcycle for handling and energy efficiency investigations (2017)
Journal Article
Griffin, J., & Popov, A. (in press). Multibody dynamics simulation of an all-wheel-drive motorcycle for handling and energy efficiency investigations. Vehicle System Dynamics, https://doi.org/10.1080/00423114.2017.1296962

It is now possible, through electrical, hydraulic or mechanical means, to power the front wheel of a motorcycle. The aim of this is often to improve performance in limit-handling scenarios including off-road low-traction conditions and on-road high-s... Read More about Multibody dynamics simulation of an all-wheel-drive motorcycle for handling and energy efficiency investigations.

Simply-supported multi-layered beams for energy harvesting (2016)
Journal Article
Patel, R., Tanaka, Y., McWilliam, S., Mutsuda, H., & Popov, A. A. (2017). Simply-supported multi-layered beams for energy harvesting. Journal of Intelligent Material Systems and Structures, 28(6), https://doi.org/10.1177/1045389X16657418

This paper develops an analytical model for predicting the performance of simply-supported multi-layered piezoelectric vibrating energy harvesters. The model includes the effects of material and geometric nonlinearities, as well as axial pre-tension/... Read More about Simply-supported multi-layered beams for energy harvesting.

Model refinements and experimental testing of highly flexible piezoelectric energy harvesters (2016)
Journal Article
Patel, R., Tanaka, Y., McWilliam, S., Mutsuda, H., & Popov, A. A. (2016). Model refinements and experimental testing of highly flexible piezoelectric energy harvesters. Journal of Sound and Vibration, 368, https://doi.org/10.1016/j.jsv.2016.01.005

This paper addresses limitations to existing analytical models for piezoelectric energy harvesters. The presented model is targeted at predicting behaviours of highly flexible piezoelectric devices (FPEDs) and includes high orders of substrate and pi... Read More about Model refinements and experimental testing of highly flexible piezoelectric energy harvesters.

An investigation on thermoelastic damping of high-Q ring resonators (2015)
Journal Article
Hossain, S. T., McWilliam, S., & Popov, A. A. (2016). An investigation on thermoelastic damping of high-Q ring resonators. International Journal of Mechanical Sciences, 106, 209-219. https://doi.org/10.1016/j.ijmecsci.2015.12.023

For applications requiring high performance angular rate measurements it is important to be able to design MEMS rate sensors with high quality factors (Q). This paper considers ring resonator based rate sensors and investigates the influence of desig... Read More about An investigation on thermoelastic damping of high-Q ring resonators.

Linear friction weld process monitoring of fixture cassette deformations using empirical mode decomposition (2015)
Journal Article
Bakker, O. J., Gibson, C., Wilson, P., Lohse, N., & Popov, A. A. (2015). Linear friction weld process monitoring of fixture cassette deformations using empirical mode decomposition. Mechanical Systems and Signal Processing, 62-63, https://doi.org/10.1016/j.ymssp.2015.02.005

Due to its inherent advantages, linear friction welding is a solid-state joining process of increasing importance to the aerospace, automotive, medical and power generation equipment industries. Tangential oscillations and forge stroke during the bur... Read More about Linear friction weld process monitoring of fixture cassette deformations using empirical mode decomposition.

An experimental study of wave power generation using a flexible piezoelectric device (2015)
Journal Article
Tanaka, Y., Oko, T., Mutsuda, H., Patel, R., McWilliam, S., & Popov, A. (2015). An experimental study of wave power generation using a flexible piezoelectric device. Journal of Ocean Technology, 2(1), 28-36

An experimental study of wave power generation using flexible piezoelectric devices (FPEDs) is presented in this paper. Two alternate configurations for harvesting power from waves are proposed. In the first configuration, the FPEDs are installed hor... Read More about An experimental study of wave power generation using a flexible piezoelectric device.

Implementing Determinate Assembly for the Leading Edge Sub-Assembly of Aircraft Wing Manufacture (2014)
Journal Article
Irving, L., Ratchev, S., Popov, A., & Rafla, M. (2014). Implementing Determinate Assembly for the Leading Edge Sub-Assembly of Aircraft Wing Manufacture. SAE International Journal of Aerospace, 7(2), 246-254. https://doi.org/10.4271/2014-01-2252

Copyright © 2014 SAE International. The replacement for the current single-aisle aircraft will need to be manufactured at a rate significantly higher that of current production. One way that production rate can be increased is by reducing the process... Read More about Implementing Determinate Assembly for the Leading Edge Sub-Assembly of Aircraft Wing Manufacture.

Optimization of piezoelectric cantilever energy harvesters including non-linear effects (2014)
Journal Article
Patel, R., McWilliam, S., & Popov, A. (2014). Optimization of piezoelectric cantilever energy harvesters including non-linear effects. Smart Materials and Structures, 23(8), Article 085002. https://doi.org/10.1088/0964-1726/23/8/085002

This paper proposes a versatile non-linear model for predicting piezoelectric energy harvester performance. The presented model includes (i) material non-linearity, for both substrate and piezoelectric layers, and (ii) geometric non-linearity incorpo... Read More about Optimization of piezoelectric cantilever energy harvesters including non-linear effects.

Optimal Controller Designs for Rotating Machines - Penalising the Rate of Change of Control Forcing (2006)
Conference Proceeding
Houlston, P. R., Garvey, S. D., & Popov, A. A. (2006). Optimal Controller Designs for Rotating Machines - Penalising the Rate of Change of Control Forcing.

In the context of active control of rotating machines, standard optimal controller methods enable a trade-off to be made between (weighted) mean-square vibrations and (weighted) mean-square currents injected into magnetic bearings. One shortcoming of... Read More about Optimal Controller Designs for Rotating Machines - Penalising the Rate of Change of Control Forcing.

Modal Control of Vibration in Rotating Machines and Other Generally Damped Systems (2006)
Conference Proceeding
Houlston, P. R., Garvey, S. D., & Popov, A. A. (2006). Modal Control of Vibration in Rotating Machines and Other Generally Damped Systems.

Second order matrix equations arise in the description of real dynamical systems. Traditional modal control approaches utilise the eigenvectors of the undamped system to diagonalise the system matrices. A regrettable consequence of this approach is t... Read More about Modal Control of Vibration in Rotating Machines and Other Generally Damped Systems.

Efficient numerical methods for aeroelastic analysis of wing-propeller configuration compound helicopters
Presentation / Conference
Wang, Z., Anobile, A., & Popov, A. A. Efficient numerical methods for aeroelastic analysis of wing-propeller configuration compound helicopters. Paper presented at Italian Association of Aeronautics and Astronautics XXIV International Conference

Efficient numerical methods for time-domain aeroelastic analysis of a wing structure under a propeller-wing configuration is described in the paper. A linear beam model with deformable elastic axis under torsion and flapping is considered to simulate... Read More about Efficient numerical methods for aeroelastic analysis of wing-propeller configuration compound helicopters.