WG1

Society of Naval Architects and Marine Engineers

Ad Hoc Panel #7

Survey to Tanker Owners (WG1)

Last revised: April 15, 1999 (WG Title)

Previous revisions: April 7, 1999 (created)

This is template ONLY !!

New
Objectives
Work Plan, Tasks and Methods
Deliverables
Schedules Meetings
Grounding Model
Collision Model
Additional Information and Related Links

References

WG1 Leader and WG1 Grounding Team Leader:
Dr. Kirsi Tikka
Webb Institute of Naval Architecture
Glenn Cove, Long Island, NY 11542-1398
Phone: 516-671-2356
Fax: 516-674-9838
e-mail: ktikka@webb-institute.edu
WG1 Collision Team Leader:
Dr. Alan Brown
Virginia Tech Department of Aerospace & Ocean Engineering
Blacksburg, VA 24061
Phone: 540-231-4950
Fax: 540-231-9632
e-mail: brown@aoe.vt.edu

New

WG1 web page created. Collision model baseline description posted for comment.

Objectives

Investigate, compare and assess tools for predicting grounding and collision damage (including collision with ice). Emphasize simplified methods, which can be readily applied to the design and rapid analysis of new structural concepts, including applications using probabilistic scenarios. Finite element and other more rigorous methods may be considered and used to validate simplified methods, but are not appropriate for many rapid analyses required in concept design and probabilistic studies. Include comparisons to available data.

The Tools WG will also act as the integrator and test bed for products from the other WGs:

Data from the WG2 will be used by WG1 to assess and validate grounding and collision models and sub-models. WG1 will recommend data types and data format to WG2 necessary to support model validation.
Scenarios from WG3 will be calibrated and used by WG1 in the grounding and collision models. WG1 will recommend scenario inputs required for damage prediction.
Designs developed by WG4 will be assessed by WG1. WG1 and WG4 will work together to identify important design parameters to be included in the damage models.

Work Plan, Tasks and Methods

Material compiled by workgroup members will be posted on the workgroup web pages for comment and question throughout the work of the panel. Two teams will support these efforts: a Webb/MIT team will provide grounding model (pdf format) support; and a Virginia Tech team will provide collision model support: baseline collision model and VT work plan (pdf format). The Ship Structure Committee and SNAME are funding a portion of this effort including grounding and collision computer modeling and additional research necessary to integrate and test the WG products.

Work will follow an iterative process:

Team leaders - post material for other members to review and discuss.
WG members - provide comment, critique, alternative approaches, supporting or conflicting data, etc.
Team leaders - integrate feedback, model, assess, post feedback

Tasks and work plan events include:

Identify available methods for predicting grounding and collision damage.
Identify simplified methods and their range of applicability.
Collect results from previous studies (including finite element and other methods).
Discuss and integrate with other workgroups at the panel meeting during the SNAME Annual Meeting, November 1998.
Compare results obtained using simplified methods with results from studies based on rigorous analytical methods or model testing.
Present the results of Tasks 1, 2 and 3 and interim results of Task 4 in an Informal Panel Workshop SNAME Annual Meeting, October 1999.
Support other panel working groups.
Contribute to the panel paper for the SNAME Annual Meeting 2000.
Complete grounding and collision studies - January 2001.
Provide team papers for 2^nd International Conference on Designs and Methodologies for Collision and Grounding Protection of Ships, Spring 2001.

Additional Information and Related Links

The ...

http://www.sname.org/committees/tech_ops/O44/tanker/wg1.html