Novel Remote Sensing Strategies for the Active Control of Sound Radiation
Lead Research Organisation:
University of Southampton
Department Name: Faculty of Engineering & the Environment
Abstract
Active structural acoustic control systems currently use accelerometers on the structure to infer information about the far-field radiated pressure. However, such systems require a preliminary calibration phase that would require a series of acoustic measurements at far-field locations. This project will investigate novel sensing strategies that avoid the need for this complex calibration phase. In particular, the project will investigate a variety of advanced sensing technologies that are based on optical, acoustical and structural measurements. The developed sensing strategies will ultimately be integrated within a practical active control system and the performance will be validated through real-world experimental trials.This project is supported by a large industrial collaborator, which provides a wide range of potential opportunities for the successful candidate. In particular, the strong industrial connection helps to ensure that the research will have a direct impact on real-world engineering
People |
ORCID iD |
| Jordan Cheer (Primary Supervisor) | |
| Charles House (Student) |
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| EP/P510646/1 | 01/10/2016 | 30/09/2021 | |||
| 1941780 | Studentship | EP/P510646/1 | 01/10/2017 | 30/09/2021 | Charles House |
| Description | The project is still on going, but currently the key findings can be summarised as: * The use of Active Vibration Control can reduce the resonant scattering from a flexible body * Virtual-Sensing can be used to accurately estimate the acoustic scattered pressure in real-time, which can then be used by an active control system to result in acoustic cloaking. * Structural actuation can effectively be used to drive the scattering body to reduce the far-field acoustic scattered pressure. This is known as Active Structural Acoustic Cloaking * The use of an acoustic quiet zone can result in reduced scattering from an object in the theoretical domain, however the performance of such a system is greatly reduced when secondary scattering objects are introduced into the sound-field. |
| Exploitation Route | Too early to say - the project is still active. |
| Sectors | Aerospace, Defence and Marine |
| URL | https://www.southampton.ac.uk/islne |
| Description | The findings can be used for implementing acoustic cloaking strategies within the maritime sector. |
| First Year Of Impact | 2019 |
| Sector | Aerospace, Defence and Marine |
| Description | IOA Bulletin |
| Form Of Engagement Activity | A magazine, newsletter or online publication |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Schools |
| Results and Impact | This is a magazine published by the Institute of Acoustics, aiming to inspire young people to consider a career in acoustics. I wrote a featured article (Page 28) on my experience studying acoustics at the University of Southampton. |
| Year(s) Of Engagement Activity | 2019 |
| URL | https://www.association-of-noise-consultants.co.uk/wp-content/uploads/2014/11/IOA-Acoustics-A-Sound-... |
| Description | New Scientist Live 2019 |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Public/other audiences |
| Results and Impact | I was part of a team that ran a range of scientific demonstrations as part of New Scientist Live 2019. The event was attended by thousands of people over the 4 days, and I'm estimating that we must have seen over 500 people through our stand over that time. |
| Year(s) Of Engagement Activity | 2019 |
| URL | https://www.southampton.ac.uk/islne/news/2019/10/newscientistlive.page? |
| Description | SOTSEF 2019 |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | Regional |
| Primary Audience | Public/other audiences |
| Results and Impact | The University of Southampton's Science & Engineering Day is an annual festival, celebrating the cutting-edge STEM research taking place at the University. I was involved with designing and supervising a number of demonstrations, including * An Active Vibration Control demonstration, showing a potential earthquake protection system * A binaural dummy head, used to expain how the human brain interprets the audio it recieves from our ears * A loudspeaker array for cars, which is capable of playing different music to the driver and front passenger at the same time |
| Year(s) Of Engagement Activity | 2019 |
| URL | https://www.southampton.ac.uk/islne/news/2019/03/science-engineering-day.page? |