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Pyrotek’s research commitment towards innovative acoustic solutions

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Pyrotek Noise Control  was invited to become part of the NZi3 Innovation Institute, formed in 2006 as a partnership between the New Zealand government and the University of Canterbury.

Offering a link between industry and the University, the NZi3 Innovation Institute was formed to commercialise the university's IT research and develop high-tech industry in Canterbury.

Michael Latimer, Technical Manager of Pyrotek Noise Control has had a 12-year relationship with the Department of Mechanical Engineering at the University, running a number of acoustic research projects with them.

Pyrotek’s research projects are currently focussed on developing new and innovative acoustic solutions.

Project: Development of Vibration Damping Compounds by André Verstappen

André’s research involves an investigation into the relative effects of damping layer thickness, ambient temperature, substrate material, plate dimensions and clamping conditions on a damping compound in a specified application.

This will be achieved by developing two test rigs to International Standards, ASTM E 756-05 and ISO 6721-3 and developing a further test rig to ascertain performance of damped panels with varying edge constraints.

In an additional study, André has compared measurements of the damping compound between the ASTM E 756-05 test method and measurements made with a Dynamic Mechanical Analyser (DMA). Three of the main reasons behind evaluating the DMA are the small sample size required, speed of measurement and the ability to alter the testing environment.

The results from this comparison were presented at the International Congress of Sound and Vibration held in Brazil early in 2011.

Project: Lightweight sandwich panels increasing acoustic performance by Tim Philips

Tim’s research involves developing new sandwich panels with optimised sound transmission loss for use in various marine and industrial applications.

The project is to complete a design guide for a range of panels with an analysis of their expected acoustic performance with Tim specifically looking at the damped plywood products range.

He has also developed a test rig to measure the dynamic bending stiffness and loss factor of small beam samples to accurately model the acoustic performance of full size panels. This research will be of great benefit in developing new products and systems for noise control in marine applications.

Project: Sound transmission loss of composite panels by André Cowan

André’s project studies the sound transmission of wave slap and the control of noise through composite panels in marine applications. The existing construction methods require evaluation and further development to determine and improve the STL of multilayered composite systems using damped plywood.

André’s objectives include experimentally determine STL of various composite panels, model the STL of composite panels and develop composite panel systems that have increased overall STL using damped plywood panels.

Andrés investigation will tie in with Tim Philips’ work on improving the performance of this range of products.

Pyrotek’s commitment to ongoing research will help the company develop unique noise control systems to better control noise in marine applications particularly for the super yacht industry.

Pyrotek currently has seven staff members actively engaged in R&D based in Christchurch, New Zealand, and Melbourne and Sydney in Australia.

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