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논문 기본 정보

자료유형
학술저널
저자정보
박해권 (Seoul National University) 김경욱 (Dept. of Biosystems and Biomaterial Science and Engineering, Seoul National University) 심성보 (Seoul National University) 김재원 (Korea Forest Research Institute) 박문섭 (Korea Forest Research Institute) 송태영 (Korea Forest Research Institute)
저널정보
한국농업기계학회 바이오시스템공학(구 한국농업기계학회지) 바이오시스템공학 제30권 제6호
발행연도
2005.1
수록면
366 - 372 (7page)

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초록· 키워드

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The objective of this study was to evaluate the bump crossing and loading stability of a proto-type mini-forwarder under development. The evaluation was performed by computer simulation using a multi-body dynamic analysis program, Recur- Dyn 5.21. The proto-type was modeled and its properties such as mass, mass center, and mass moment of inertia were determined using 3D CAD modeler, Solid Edge 8.0. The $\%$ errors of masses, mass center, mass moment of inertia, and vertical motion of the model were within less than $10\%$ and the model's behavior agreed relatively well with those of the proto-type when traversing over a rectangular bump. Using the validated model, bump crossing of the proto-type was simulated and the loading limit was determined. It was found that effects of the shapes of bump on the bump crossing performance was insignificant within the practical heights of bumps. Stability of bump crossing increased with loading. However, loading of longer logs than 2.7 m made the crossing unstable because the ends of logs contacted ground when traversing over the bump. The maximum loading capacity of the proto-type was estimated to be 7.8 kN of 2.7 m long logs.

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