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연약지반 4열 무한궤도차량 해석모델 개발Development of Dynamic Analysis Model for a Four-column Tracked Vehicle on Extremely Cohesive Soft Soil
- Other Titles
- Development of Dynamic Analysis Model for a Four-column Tracked Vehicle on Extremely Cohesive Soft Soil
- Issue Date
- 1-7월-2009
- Publisher
- 한국해양연구원 해양시스템안전연구소
- Keywords
- Four-column tracked vehicle; Dynamic analysis; Cohesive soft soil; Sinkage; Shear displacement
- Citation
- 선박해양기술, v.47, no.1, pp 31 - 38
- Pages
- 8
- Journal Title
- 선박해양기술
- Volume
- 47
- Number
- 1
- Start Page
- 31
- End Page
- 38
- Abstract
- This paper concerns about development of dynamic analysis model for a four-column tracked vehicle crawling on extremely cohesive soil, of which each side is composed of parallel two tracks. The four-column tracked vehicle is assumed as rigid body with 6 degree of freedom. Extremely cohesive soft soil is modeled in form of relationships: normal pressure to static sinkage, shear stress to shear displacement, and dynamic sinkage to shear displacement. Equation of motion of vehicle are derived with respect to the body-fixed coordinates. In order to investigate dynamic responses of four-column tracked vehicle, Newmark's method is employed by means of incremental-iterative algorithm. A nonlinear dynamic analysis program is developed in FORTRAN.
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