[논문]다물체 동역학 시뮬레이션 기반 4단 배수 타워의 동적 특성 연구

박승운; 한영환; 전호영; 이철희

doi:10.7839/ksfc.2023.20.4.009

다물체 동역학 시뮬레이션 기반 4단 배수 타워의 동적 특성 연구
Study on Dynamic Characteristics of 4-Step Drainage Tower Based on Multi-body Dynamics Simulation 원문보기

드라이브ㆍ컨트롤 = Journal of drive and control, v.20 no.4, 2023년, pp.9 - 16

박승운 (Department of Mechanical Engineering, Inha University) , 한영환 (Junjin Construction & Robot Co. Ltd) , 전호영 (Junjin Construction & Robot Co. Ltd) , 이철희 (Department of Mechanical Engineering, Inha University)

Abstract ▼ AI-Helper

This paper analyzed a drainage tower used to drain water in flooded areas. Multi-body dynamics simulation was used to analyze the dynamic behavior of the drainage tower. Structural analysis, flexible-body dynamic analysis, and rigid body dynamic analysis were done to study the maximum Von-Mises stress of the drainage tower. The results showed that the maximum Von-Mises stress occurs at the turn table, and it decreases when the angle of the boom is increased. Also, the rate of the change of angle affects the maximum stress so that the maximum stress changes more when the angular velocity of the boom increases. Based on the rigid body dynamic analysis and the theoretical analysis results, the centrifugal force from the angular velocity makes the difference in the maximum stress at the turn table because of the difference in their direction. Consequently, it was concluded that the centrifugal force should be considered when designing construction machinerythat can rotate.

주제어

표/그림 (12)

그림 Fig. 1 Drainage tower installed in a vehicle.
그림 Fig. 3 Simulation model of the drainage tower.
그림 Fig. 2 3D model of the drainage tower.
그림 Fig. 4 Result of structural analysis (Von-Mises stress).
$Fig. 5 Result of flexible body dynamic analysis (Von-Mises stress): <TEX>$(a)\;\omega=\frac{\pi}{120}rad/s;\;(b)\;\omega=\frac{\pi}{120}rad/s$</TEX>.$ 그림 Fig. 5 Result of flexible body dynamic analysis (Von-Mises stress): $(a)\;\omega=\frac{\pi}{120}rad/s;\;(b)\;\omega=\frac{\pi}{120}rad/s$.
표 Table 1 Mass information of components of the drainage tower.
그림 Fig. 6 Result of rigid body dynamic analysis about the revolute joint of the turn table: (a) Forces; (b) Moments; (c) Sum of forces and moments.
표 Table 2 Result of the flexible body dynamics simulation.
그림 Fig. 7 Rough mathematical model of the drainage tower.
그림 Fig. 8 Model changes by topology optimization.
그림 Fig. 9 Simulation results of original and optimized models: (a) equivalent stress of the original model; (b) equivalent stress of the optimized model; (c) total deformation of the original model; (d) total deformation of the optimized model.
표 Table 3 Analysis condition of topology optimization.

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