All Outputs (43)

Effects of mechanical non-linearity on the dynamic behaviour of ring-based inertial rate sensors (2019)
Presentation / Conference Contribution
Popov, A. A., Napoli, V. D., & McWilliam, S. (2019, September). Effects of mechanical non-linearity on the dynamic behaviour of ring-based inertial rate sensors. Presented at 41st International Conference on Vibroengineering, Leipzig, Germany

© 2019 Violetta Di Napoli, et al. This paper presents a mathematical model to describe the 2 in-plane response of supported ring-based MEMS Coriolis Vibrating Gyroscopes (CVGs), including mechanical non-linearity in ring and support structures. Whils... Read More about Effects of mechanical non-linearity on the dynamic behaviour of ring-based inertial rate sensors.

Nonlinear electrostatic effects in MEMS ring-based rate sensors under shock excitation (2019)
Journal Article
Sieberer, S., Mcwilliam, S., & Popov, A. A. (2019). Nonlinear electrostatic effects in MEMS ring-based rate sensors under shock excitation. International Journal of Mechanical Sciences, 157-158, 485-497. https://doi.org/10.1016/j.ijmecsci.2019.04.028

The vibration response of a capacitive ring-based Coriolis Vibrating Gyroscope (CVG) subjected to in-plane shock is modelled and analysed to quantify the effect of shock on angular velocity measurement. The model developed considers a ring resonator... Read More about Nonlinear electrostatic effects in MEMS ring-based rate sensors under shock excitation.

Trade-off study of a variation aware determinate wing assembly against a traditional assembly strategy (2018)
Presentation / Conference Contribution
Bacharoudis, K., Bakker, O. J., Popov, A., & Ratchev, S. Trade-off study of a variation aware determinate wing assembly against a traditional assembly strategy. Presented at 8th EASN-CEAS International Workshop on Manufacturing for Growth & Innovation, Glasgow, UK

The present study introduces a trade-off framework to evaluate assembly concepts to make informed decisions for aircraft wing structures. This includes (1) the design of the assembly concepts and the estimation of the probability of achieving specifi... Read More about Trade-off study of a variation aware determinate wing assembly against a traditional assembly strategy.

Computationally-efficient aeroelastic analysis tool for short-wing/propeller configuration on compound helicopters (2018)
Presentation / Conference Contribution
Wang, Z., & Popov, A. A. (2018, September). Computationally-efficient aeroelastic analysis tool for short-wing/propeller configuration on compound helicopters. Paper presented at International Conference on Noise and Vibration Engineering (ISMA-USD 2018)

A time-domain aeroelastic analysis for short-wing/propeller configuration in compound helicopters is presented in this paper. A linear Timoshenko beam is used in conjunction with analytical aerodynamic theories, while propeller effects are simplified... Read More about Computationally-efficient aeroelastic analysis tool for short-wing/propeller configuration on compound helicopters.

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 Contribution
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.

Forced vibration experiments on flexible piezoelectric devices operating in air and water environments (2014)
Journal Article
McWilliam, S., Popov, A. A., Tanaka, Y., Oko, T., Mutsuda, H., & Patel, R. (2014). Forced vibration experiments on flexible piezoelectric devices operating in air and water environments. International Journal of Applied Electromagnetics and Mechanics, 45(1-4), 573-580. https://doi.org/10.3233/jae-141879

Modal Control of Vibration in Rotating Machines and Other Generally Damped Systems (2006)
Presentation / Conference Contribution
Houlston, P. R., Garvey, S. D., & Popov, A. A. Modal Control of Vibration in Rotating Machines and Other Generally Damped Systems. Presented at ISMA 2006 International Conference on Noise and Vibration Engineering

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.