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This paper focuses on the dynamic responses of a tracked vehicle crawling on extremely cohesive soft soil, each side of which is composed of two parallel tracks. The tracked vehicle consisted of 2 bodies. One body is the tracked vehicle body, which is assumed to be a rigid body with 6 DOFs. The other body is the buoy body. The two bodies are connected by a revolute joint. In order to evaluate the travelling performance of a 7 DOFs vehicle, a dynamic analysis program for the tracked vehicle was developed using Newmark’s method and the incremental-iterative method. The effects of road wheels on the track and soil are not taken into account. A terra-mechanics model of extremely cohesive soft soil is implemented in form of relationships: normal pressure to sinkage, shear resistance to shear displacement, and dynamic sinkage to shear displacement. Pressure-sinkage relationship and shear displacement-stress relationship should represent the non-linear characteristics of extremely soft soil. Especially, since the shear resistance of soft soil is very sensitive to shear displacement, spatial distribution of shear displacement occurring at the contact area of the tracks should be calculated precisely. The proposed program is developed in FORTRAN.
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참고문헌 (18건) : 자료제공( 네이버학술정보 )
| 번호 | 참고문헌 | 국회도서관 소장유무 |
|---|---|---|
| 1 | 김형우, 홍섭, 최종수, 여태경 (2007) 연약지반 무한궤도차량의 다물체 동적거동 해석. 한국해양공학회지 21(1):69-74 | 미소장 |
| 2 | 최종수, 홍섭, 김형우, 이태희 (2004) 직교배열표를 실험계획법에 의한 심해 연약지반용 무한궤도차량의 견인성능에대한 실험적 연구. Ocean and Polar Res 26(2):231-243 | 미소장 |
| 3 | 최종수, 홍섭, 김형우 (2006) 직교배열표 실험계획법에 의한심해저 점착성 연약지반용 무한궤도차량의 선회성능에대한 실험 연구. 한국해양공학회지 20(4):37-42 | 미소장 |
| 4 | Brink AW, Chung JS (1981) Automatic position control of a 300,000-ton ship ocean mining system. In: Offshore Technology Conference, Houston, 1 December 1981 | 미소장 |
| 5 | Chung JS (1996) Deep-ocean Mining: technologies for manganese nodules and crusts. Int J Offshore Polar Eng 6(4):244-254 | 미소장 |
| 6 | Chung JS (1998) An articulated pipe-miner system with thrust control for deep-ocean crust mining. Mar Georesour Geotech 16:253-271 | 미소장 |
| 7 | Shajahan MA, Atmanand MA (2007) Development and tests of underwater mining systems for long term operations using flexible riser concept. In: 7th ISOPE ocean mining symposium, Lisbon, Portugal, 1-6 July 2007 | 미소장 |
| 8 | Glasby GP (2002) Deep seabed mining: past failures and future prospects. Mar Georesour Geotech 20:161-176 | 미소장 |
| 9 | Handschuh R, Grebe H, Panthel J, Schulte E, Wenzlawski B, Schwarz W, Atmanand MA, Jeyamani R, Shajahan M, Deepak C, Ravindran M (2001) Innovative deep ocean mining concept based on flexible riser and selfpropelled mining machines. In: 4th ISOPE ocean mining symposium, Szczecin, Poland, 23-27 September 2001 | 미소장 |
| 10 | Hong S, Kim HW, Choi JS (2002) Transient dynamic analysis of tracked vehicles on extremely soft cohesive soil. In: The 5th ISOPE Pacific/Asia offshore mechanics symposium, Daejeon, Korea, 17-20 November 2002 | 미소장 |
| 11 | Hong S, Choi JS (2001) Experimental study on grouser shape effects on trafficability of extremely soft seabed. In: Proceedings of the 4th Ocean mining symposium, Szczecin, Poland, 23-27 September 2001 | 미소장 |
| 12 | Hong S, Kim K (1999) Proposed technologies for mining deep-seabed polymetallic nodules – Chap 12 research and development of deep seabed mining technologies for polymetallic nodules in Korea. In: International seabed authority’s workshop, Kingston, Jamaica, 3-6 August 1999 | 미소장 |
| 13 | Kim HW, Hong S, Choi JS (2003) Comparative study on tracked vehicle dynamics on soft soil : single-body dynamics vs. multi-body dynamics. In: ISOPE, OMS-2003, Tsukuba, Japan, 15-19 September 2003 | 미소장 |
| 14 | Kim HW, Lee CH, Hong S, Yeu TK, Choi JS (2013) A study on steering characteristics of pilot mining robot (MineRoII)on extremely cohesive soft soil. In: 42nd Underwater mining institute, Rio, Brazil, 21-29 October 2013 | 미소장 |
| 15 | Liu F, Yang N (1999) Proposed technologies for mining deep-seabed polymetallic nodules − Chap 9 environmentally friendly deep seabed mining system. In: International seabed authority’s workshop, Kingston, Jamaica, 3-6August 1999 | 미소장 |
| 16 | Morgan CL, Odunton NA, Jones AT (1999) Synthesis of environmental impacts of deep seabed mining. Mar Georesour Geotech 17:307-356 | 미소장 |
| 17 | Sharma R (2011) Deep-sea mining: economic, technical, technological, and environmental considerations for sustainable development. Mar Technol Soc J 45:28-41 | 미소장 |
| 18 | Valsangkar AB (2003) Deep-sea polymetallic nodule mining:challenges ahead for technologists and environmentalists. Mar Georesour Geotech 21:81-91 | 미소장 |
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