Study and Parametric Analysis of Trafficability, Running Gear, and Stability Considerations for Nearshore, Bottom-Crawling Vehicles.
Abstract
The Surfzone Transition Analytical Methodology (STAM) is a computerized mathematical model that was developed to predict the trafficability and stability performance of bottom-crawling vehicles operating in the nearshore region (from shoreline to 150-ft water depth). STAM input requires detailed mathematical descriptions of (a) the vehicle's design characteristics, (b) its performance requirements, and (c) the specific nearshore environment. From these descriptions, STAM predicts (a) vehicle trafficability performance in terms of vehicle/obstacle interference and vehicle ability to negotiate soft soil, develop drawbar pull, and maintain tractive force while operating on either a fine-grained or a coarse-grained ocean bottom, and (b) vehicle stability performance in terms of vehicle resistance to lateral and to longitudinal overturn, plus vehicle ability to maintain forward motion and to resist side sliding. STAM predicts the performance of only two-track, single-chassis bottom-crawling vehicles because this well-developed chassis/running gear combination was judged most suitable for near-future nearshore operations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1978
- Accession Number
- ADA063733
Entities
People
- Gerald W. Turnage
- William C. Seabergh