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our advanced M&S with live ? re testing. a previously unknown material can only 1 Turner, Horstman and Bain, War- 2 Thornton, Coulthard and Hardy,

Using the few live ? re tests we can af- be determined through live ? re testing. ship Survivability, Royal Institute of Naval Modeling Maritime Survivability, Royal In- ford now as well as tests we’ve done in But once known, this information can be

Architects, Warship 2006: Future Surface stitute of Naval Architects, Warship 2006: the past to verify and validate the surviv- used to enhance M&S software capabili-

Warships Conference, London, June 20-21, Future Surface Warships Conference, Lon- ability M&S software and engineering ties so that we can ensure our next gen- 2006 don, June 20-21, 2006 tools allows us to apply these tools to as- eration of warships is still more capable sess and quantify the ships combat capa- and survivable than our opponents’.

bility and performance. After all, con? - dence in a particular model or simulation must be justi? ed before its results are used to make decisions. To ensure that con? dence in an M&S application is jus- ti? ed for our ships, a rigorous validation, veri? cation and accreditation (VV&A) process is followed such that the model- ing assumptions are all well document- ed, the results produced by the M&S are stable, and the correlation between M&S behavior and real world behavior is well understood. As an example, the MO-

TISS survivability software used over 890 live ? re test events to verify and validate its algorithms prior to receiving naval accreditation in 2008. Regardless, variables such as a random poor quality weld or blast and ballistic resistance of

The Author

Dr. Waltham-Sajdak is a weapons ef- fects specialist having participated in over twenty domestic and international naval ship survivability programs, he is currently employed as a principal scien- tist at Alion Science and Technology in

Alexandria, VA USA.

www.marinelink.com 21

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