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연약지반 4열 강체 무한궤도 주행차량의 선회성능 연구A Study on the Steering Performance of Four-Row Rigid Tracked Vehicle on Extremely Cohesive Soft Soil
- Other Titles
- A Study on the Steering Performance of Four-Row Rigid Tracked Vehicle on Extremely Cohesive Soft Soil
- Issue Date
- 30-12월-2009
- Publisher
- 한국해양연구원 해양시스템안전연구소
- Keywords
- Steering performance; Four-Row Rifid Tracked vehicle; Cohesive soft soil; Terramechanics; Dynamic simulations
- Citation
- 선박해양기술, v.48, no.1, pp 1 - 7
- Pages
- 7
- Journal Title
- 선박해양기술
- Volume
- 48
- Number
- 1
- Start Page
- 1
- End Page
- 7
- Abstract
- This paper concerns about steering performance of four-row tracked vehicle crawling on extremely cohesive soft soil, of which each side is composed of parallel two tracks. The four-row tracked vehicle is assumed as rigid body with 6-dof. The dynamic analysis program of tracked vehicle is developed using Newmark's method and incremental-iterative scheme. A terramechanics model of cohesive soft soil is implemented in form of relationships: normal pressure to sinkage, shear resistance to shear displacement, and dynamic sinkage to shear displacement. In order to investigate steering performance of the four-row tracked vehicle, a series of dynamic simulations are conducted with respect to change of pitches between tracks of left and right side, change of steering ratios, change of velocity ratios and so on.
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