DDAM

DDAM

DDAM stands for the Dynamic Design Analysis Method and is the primary method used by the US Navy for UNDEX shock design of foundation structures. The document describing the method, NAVSEA 0908-LP-000-3010, Rev 1., is public release, but the values needed to actually perform an analysis are classified.

The DDAM is based on a standard spectral response analysis technology but uses a modified modal summation technique called the NRL Sum. The NRL Sum differs from the similar Root Sum Squared method used by most modal summation methods by holding the largest value aside during the RSS and then adding it into the sum.


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • Varieties of Arabic — For the historical family of dialects, see Arabic languages. Different dialects of Arabic in the Arab world The Arabic language is a Semitic language characterized by a wide number of linguistic varieties within its five regional forms. The… …   Wikipedia

  • Birmingham Tornado of April 1956 — The Birmingham Tornado of April 1956 was a deadly tornado that took place during the afternoon of April 15, 1956 across the Greater Birmingham area. Rated an F4 on the Fujita scale, the tornado killed 25 and injured about 200 people.While only… …   Wikipedia

  • Bateau-école — Exercices d un bateau école à l entrée du port des Minimes Les bateaux écoles sont des établissements de formation destinés à préparer les candidats à l examen du permis de conduire les bateaux à moteur. Si le fonctionnement d un bateau école… …   Wikipédia en Français

  • Plan POLMAR — Le plan POLMAR (pollution maritime) est un plan d’intervention français qui est déclenché en cas de pollution marine accidentelle. Il a été institué en 1978, à la suite de la catastrophe de l’Amoco Cadiz sur les côtes de Bretagne en France. Il… …   Wikipédia en Français

  • Plan Polmar — Le plan POLMAR (pollution maritime) est un plan d’intervention français qui est déclenché en cas de pollution marine accidentelle. Il a été institué en 1978, à la suite de la catastrophe de l’Amoco Cadiz sur les côtes de Bretagne en France. Il… …   Wikipédia en Français

  • Polmar — Plan Polmar Le plan POLMAR (pollution maritime) est un plan d’intervention français qui est déclenché en cas de pollution marine accidentelle. Il a été institué en 1978, à la suite de la catastrophe de l’Amoco Cadiz sur les côtes de Bretagne en… …   Wikipédia en Français

  • PR Watch — is a quarterly newsletter whose stated mission is to expose deceptive and misleading public relations campaigns. It frequently writes about PR campaigns which it considers to be anti environmental but also covers issues ranging from labor rights… …   Wikipedia

  • Nastran — Example of MSC.Nastran analysis result NASTRAN is a finite element analysis (FEA) program that was originally developed for NASA in the late 1960s under United States government funding for the Aerospace industry.[1] The MacNeal Schwendler… …   Wikipedia

  • April 6–8, 2006 Tornado Outbreak — Infobox tornado outbreak|name=April 6 8, 2006 Tornado Outbreak date=April 6–8, 2006 image location=Gallatin before.jpg Gallatin, Tennessee that killed nine people. duration=2 days, 2 hours, 6 minutes fujitascale=F3 tornadoes=73 confirmed total… …   Wikipedia

  • 1998 Comfrey – St. Peter tornado outbreak — Infobox tornado outbreak|name=1998 Comfrey ndash; St. Peter tornado outbreak date=March 29, 1998 image location=Csptornado2.jpg duration=4 hours fujitascale=F4 tornadoes=16 total damages (USD)=$235 million total fatalities=2 areas… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”