Wind-Induced Steady Loads on Ships
Abstract
Methods are presented for predicting the lateral and longitudinal steady wind drag forces and yaw moment versus incident wind angle for various ship types. These methods were developed based on experimental model data for 31 ships compiled from six independent tests. Except for hull-dominated ships, which are considered separately, the longitudinal wind drag force is computed using a constant headwind coefficient that has an accuracy of 12%. This coefficient can be modified depending on the ship type and above deck features. Over the remainder of the incident wind directions the coefficient is based on curve fits to the data. The lateral force coefficient is also derived from a curve fitted to the data and is based on a peak value with a 10% deviation; the coefficient is dependent on mean heights and projected areas of the hull and superstructure. Determination of the recommended moment response is based on an inspection and interpolation of existing experimental data. Recommendations from other investigations are also presented for comparison, and a sample problem is included.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1982
- Accession Number
- ADA119984
Entities
People
- P. Palo
- R. Owens
Organizations
- Naval Facilities Engineering Service Center