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- 저자 : Yongkang Shi (검색결과 1 건)
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Thermal balance performance simulation and optimization of full-ground crane cabins
Yongkang Shi,Zhenlei Chen,Haitao He,Fan Shi,Penyong Liu,Yong Wang 대한기계학회 2021 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.35 No.2
To solve the excessive thermal load problem of the crane engine and engine compartment, a combined 1-D and 3-D thermal simulation method is developed to numerically simulate the heat flow field inside and outside the engine compartment, the engine thermal system and the cooling system. Simultaneously, to ensure the accuracy of the numerical calculation boundary and the feasibility of the combined thermal simulation method, the trailer heat balance test is conducted under the rated conditions and the maximum torque conditions. By reasonably sealing the heat dissipation assembly at the front of the nacelle, bottom guards under the engine are added and other improvement measures are taken. It is found that the engine outlet’s coolant temperature is decreased by 15.9 °C under rated conditions when the improved crane is in the 36 °C environment. While the outlet’s coolant temperature is decreased by 20 °C under maximum torque conditions.
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