17
BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES J.A. Fletcher, M.A.(Cantab.) Research Department, Engineering Division THE BRITISH BROADCASTING CORPORATION

Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES

Embed Size (px)

Citation preview

Page 1: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES

BBC RD 1992/10

Research Department

Report

THE DESIGN OF A MODULAR SOUND ABSORBER FOR

VERY LOW FREQUENCIESJ.A. Fletcher, M.A.(Cantab.)

Research Department, Engineering Division THE BRITISH BROADCASTING CORPORATION

Page 2: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES
Page 3: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES
Page 4: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES
Page 5: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES
Page 6: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES

© BBC 2004. All rights reserved. Except as provided below, no part of this document may be reproduced in any material form (including photocopying or storing it in any medium by electronic means) without the prior written permission of BBC Research & Development except in accordance with the provisions of the (UK) Copyright, Designs and Patents Act 1988.

The BBC grants permission to individuals and organisations to make copies of the entire document (including this copyright notice) for their own internal use. No copies of this document may be published, distributed or made available to third parties whether by paper, electronic or other means without the BBC's prior written permission. Where necessary, third parties should be directed to the relevant page on BBC's website at http://www.bbc.co.uk/rd/pubs/ for a copy of this document.

Page 7: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES
Page 8: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES
Page 9: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES
Page 10: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES
Page 11: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES
Page 12: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES
Page 13: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES
Page 14: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES
Page 15: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES
Page 16: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES
Page 17: Research Department Report - BBCdownloads.bbc.co.uk/rd/pubs/reports/1992-10.pdf · BBC RD 1992/10 Research Department Report THE DESIGN OF A MODULAR SOUND ABSORBER FOR VERY LOW FREQUENCIES