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Noise tolerant   design,   vibra8on     monitoring     &   control   on   drilling   pla<orms   and   offshore  structures     Research  in  Singapore    

Research Case   Studies    

Research  at  Newcastle   University  Interna7onal   Singapore  (NUIS)    is  driven  by   matching  industry  needs  with   our  academic  excellence  and   funding  projects  through  a   mix  of  grants  and   consultancy.  We  also  offer  a   range  of  post  grad’  industry   based  research  degrees,   delivering  great  research   projects  as  well  as  up-­‐grading   staff  competence.       To  find  out  more  contact  the   research  and  Development   team:    

NUIS-­‐Research@ncl.ac.uk (+65)  6550  1963   www.ncl.ac.uk/research    

Prof’ E  Mesbahi  in  collabora7on  with  a  major  Singapore  shipyard   Background   While   on-­‐board   comfort   for   workers   is   a   vital   for   opera7onal   efficacy   and   safety   in   drilling   opera7ons,   the   concept   of   crew   habitability   in   rela7on   to   drilling   vessels   has   assumed   far   greater   importance   in   recent   years.   This   reflects   tougher   regulatory   criteria,   and   a   greater   apprecia7on   of   the   fa7gue-­‐inducing   effect   and   long-­‐term   health   issues   associated   with   protracted   exposure   to   high   levels   of   noise   and   vibra7on.    Hence,  shipbuilders  are  looking  to  limit  noise  and  vibra7on  as  much  as  possible.  This  is  par7cularly  important  on  accommoda7on   quarters  on  the  drilling  plaDorm.  Ideally,  poten7al  problems  should  be  iden7fied  at  the  earliest  stages  of  design  and  build.  

Methodology Acous7c   studies   will   be   undertaken   from   an   early   design   stage   by   modelling   structure   and   airborne   noise   characteris7cs   of   machinery   and  equipment  on  the  drilling  plaDorm  predic7ng  noise  radiated  to   accommoda7on  quarters.       The  results  of  these  studies  will  help  drive  a  balanced  approach  to   noise   reduc7on,   guiding   the   ergonomic   and   efficient   accommoda7on   layout,   placement   of   equipment,   structure   design   and  moun7ng  arrangements  during  the  design  stage.     The  research  will  also  provide  an  ac7ve  noise  and  vibra7on  control   system  to  reduce  the  residual  noise  and  vibra7on  that  could  not  be   eliminated   by   design;   an   example   being   the   airborne   noise   and   vibra7on   from   the   engine   room.   This   twin   approach   provides   a   holis7c   solu7on   to   mi7gate   noise   and   vibra7on   on   drilling   plaDorms.   The   projects   was   conducted   using   the   EDB   IPP   PhD   program   delivering   both   the   research   project   and   a   PhD   level   employee   expert  in  field  

Significance This  study  will  develop  the  state  of  the  art  in  terms  of  the  technology  of  noise   and  vibra7on  reduc7on  in  offshore  structures.  This  will  allow  the  construc7on   and  opera7on  of  plaDorms  and  rigs  which  have  a  more  comfortable  living  and   working   accommoda7on   for   crew.   This   will   reduce   vibra7on   and   noise   induced   stress   and   fa7gue   and   consequently   have   far   reaching   posi7ve   benefits  on  crew  safety  and  performance.  

Airborne and  Structure  borne  noise  and  vibra8on  

Singapore case studies  

NUIS Research case studies