Navigation Links
Running shipwreck simulations backwards helps identify dangerous waves
Date:10/1/2007

ANN ARBOR, Mich.---Big waves in fierce storms have long been the focus of ship designers in simulations testing new vessels.

But a new computer program and method of analysis by University of Michigan researchers makes it easy to see that a series of smaller waves---a situation much more likely to occur---could be just as dangerous.

"Like the Edmund Fitzgerald that sank in Michigan in 1975, many of the casualties that happen occur in circumstances that aren't completely understood, and therefore they are difficult to design for," said Armin Troesch, professor of naval architecture and marine engineering. "This analysis method and program gives ship designers a clearer picture of what they're up against."

Troesch and doctoral candidate Laura Alford will present a paper on their findings Oct. 2 at the International Symposium on Practical Design of Ships and Other Floating Structures, also known as PRADS 2007.

Today's ship design computer modeling programs are a lot like real life, in that they go from cause to effect. A scientist tells the computer what type of environmental conditions to simulate, asking, in essence, "What would waves like this do to this ship"" The computer answers with how the boat is likely to perform.

Alford and Troesch's method goes backwards, from effect to cause. To use their program, a scientist enters a particular ship response, perhaps the worst case scenario. The question this time is more like, "What are the possible wave configurations that could make this ship experience the worst case scenario"" The computer answers with a list of water conditions.

What struck the researchers when they performed their analysis was that quite often, the biggest ship response is not caused by the biggest waves. Wave height is only one contributing factor. Others are wave grouping, wave period (the amount of time between wave crests), and wave direction.

"In a lot of cases, you could
'/>"/>

Contact: Nicole Casal Moore
ncmoore@umich.edu
734-647-1838
University of Michigan
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Why running noses are a good thing
2. Running delays disability in the aged
3. Rats dream about running mazes...
4. Running Water Restored In Chinese City
5. Running Alone Might Not Be The Answer
6. Retro Running Is Found To Be More Advantageous
7. Higher Gas Prices Leave Many Workers Running on Empty
8. Bird Flu Risk Still Running High in Egypt, Indonesia, WHO Says
9. Australian Injured as Spain Begins Annual Bullrunning Festival
10. Protestors Strip, Don Horns Against Spains Running of the Bulls
11. Antibiotics Helps Autism
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/13/2014)... MillionaireCasket.com is a professional supplier of funeral ... caskets are selling well in the global market. Recently, the ... and launched a special offer for all the newly ... the company’s cherry caskets are made with superb materials. As ... people to show respect to the departed saint. MillionaireCasket.com is ...
(Date:7/13/2014)... Failure to get the best treatment and variations in ... why survival for blood cancer patients still varies widely ... study of survival in European adults to date, published ... news is that 5-year survival for most cancers of ... most likely reflecting the approval of new targeted drugs ...
(Date:7/13/2014)... 13, 2014 Carolinas Healthcare System celebrated ... the Carolinas HealthCare System - Anson located in Anson ... Anson Community Hospital in Wadesboro. , Located on U.S. ... from the previous facility. Situated on a 10-acre site, ... an emergency room drop-off, helipad, healing garden, and 15 ...
(Date:7/13/2014)... identifies a novel genetic and molecular pathway ... opening up potential new therapeutic strategies for an ... is a chronic inflammatory disorder of the esophagus. ... certain foods and an over-accumulation in the esophagus ... the body,s immune system). EoE can cause a ...
(Date:7/13/2014)... Chromatography system is a physical method of separation ... samples such as air and water. Chromatography systems ... namely mobile phase and stationary phase. The components ... phase, followed by the differential rate of migration ... mixture. Chromatography system plays an important role in ...
Breaking Medicine News(10 mins):Health News:Brand New Cherry Caskets Unveiled By China Casket Supplier MillionaireCasket.com 2Health News:The Lancet Oncology: Differences in treatment likely to be behind differing survival rates for blood cancers between regions within Europe 2Health News:The Lancet Oncology: Differences in treatment likely to be behind differing survival rates for blood cancers between regions within Europe 3Health News:Carolinas HealthCare System - Anson Hospital Now Open 2Health News:Study finds cause of mysterious food allergy, suggests new treatment strategy 2Health News:Study finds cause of mysterious food allergy, suggests new treatment strategy 3Health News:North America Chromatography Systems Market Is Expected to Reach $6593.4 Million by 2018 - New Report by MicroMarket Monitor 2Health News:North America Chromatography Systems Market Is Expected to Reach $6593.4 Million by 2018 - New Report by MicroMarket Monitor 3
... Aug. 31 During a campaign stop,in the Palmetto ... say how he would address America,s health care crisis, ... states to decide. [Associated Press,8/31/07] Yet, in the face ... overtime to distance himself from the Massachusetts,health care plan ...
... reduction over 6 weeks , , FRIDAY, Aug. 31 (HealthDay News) ... hot flashes of menopause, Mayo Clinic researchers report. , A ... who used dietary flaxseed daily reported a 50 percent reduction ... "Flaxseed worked very well," said Dr. Sandhya Pruthi, director of ...
... vital role in maintaining blood supply, WASHINGTON, Aug. ... difficult season for blood collection, and one that blood,centers ... tight blood,supplies since Memorial Day, there is relief in ... school blood drives. (PHOTO: http://www.newscom.com/cgi-bin/prnh/20070831/DCF008 ) ...
... MINNEAPOLIS, Aug. 31 HEI, Inc. (Nasdaq: ... has entered into an agreement,to sell substantially all ... Smartrac,Technology US, Inc., a wholly-owned subsidiary of Dutch ... sale of substantially all the assets of,the RFID ...
... 31 Landauer, Inc. (NYSE:,LDR) announced today that its ... $0.475 per share for the fourth quarter of,fiscal 2007. ... to shareholders,of record on September 14, 2007. About ... services to determine,occupational and environmental radiation exposure. For more ...
... MYL ) ("Mylan") announced today that it is ... of its outstanding 5.750% Senior Notes due,2010 (CUSIP No. ... 628530AC1) (collectively, the "Notes"). Mylan is making the ... its new global capital structure and in preparation for ...
Cached Medicine News:Health News:DNC: South Carolina Rejecting Romney's Smooth Talk on Health Care 2Health News:Flaxseed May Relieve Hot Flashes 2Health News:Back to School Means Return of School Blood Drives 2Health News:Back to School Means Return of School Blood Drives 3Health News:HEI, Inc. Announces Sale of RFID Division Assets 2Health News:Mylan Commences Tender Offers and Consent Solicitations for Its 5.750% Senior Notes Due 2010 and 6.375% Senior Notes Due 2015 in Connection With Its Proposed Acquisition of Merck's Generic Pharmaceutical Business 2Health News:Mylan Commences Tender Offers and Consent Solicitations for Its 5.750% Senior Notes Due 2010 and 6.375% Senior Notes Due 2015 in Connection With Its Proposed Acquisition of Merck's Generic Pharmaceutical Business 3Health News:Mylan Commences Tender Offers and Consent Solicitations for Its 5.750% Senior Notes Due 2010 and 6.375% Senior Notes Due 2015 in Connection With Its Proposed Acquisition of Merck's Generic Pharmaceutical Business 4
(Date:7/10/2014)... 2014  Decision Resources Group finds that while ... specialists are willing to prescribe Durata,s Dalvance (dalbavancin) ... as OPAT, approximately two-thirds of the respondents reported ... hospital inpatients. However, our findings indicate that nearly ... on OPAT following hospital discharge, and most are ...
(Date:1/15/2014)... MILTON, N.Y. , Jan. 15, 2014 Sono-Tek Corporation ... three months ended November 30, 2013, compared to sales of ... or 20%. Once again, this quarter has also shown growth ... in the first quarter of this fiscal year. Markets that ...
(Date:1/15/2014)... , Jan. 15, 2014 As health officials across the ... select Meijer pharmacies in Michigan will ... eligible patients, enabling Meijer pharmacists to administer tests and, in ... by a physician participating in the study. The ...
Breaking Medicine Technology:Long-Acting Antibiotics Offering Once-Weekly Dosing Will See Favorable Uptake and Use as Outpatient Parenteral Antimicrobial Therapy (OPAT) 2Long-Acting Antibiotics Offering Once-Weekly Dosing Will See Favorable Uptake and Use as Outpatient Parenteral Antimicrobial Therapy (OPAT) 3Sono-Tek Announces Third Quarter Results 2Sono-Tek Announces Third Quarter Results 3Sono-Tek Announces Third Quarter Results 4Meijer Pharmacy Offers Free Flu, Strep Testing as Influenza Cases Rise Across the Midwest 2Meijer Pharmacy Offers Free Flu, Strep Testing as Influenza Cases Rise Across the Midwest 3
Clearview Chlamydia is a rapid, easy-to-use test for the detection of Chlamydia trachomatis from female endocervical swab specimens....
One inch disposable patch electrode uses a specially formulated adhesive solid gel. Reusable lead wire with snap connector provides economic benefits. Ideal for sleep studies where leg movement or EK...
One inch disposable patch electrode uses a specially formulated adhesive solid gel. Reusable lead wire with snap connector provides economic benefits. Ideal for sleep studies where leg movement or EK...
... Made with elastic fabric, these head cap ... need to begin testing. Each Electro-Cap System ... the International 10-20 System. When you place ... are using with your head cap system ...
Medicine Products: