Strength and Fatigue Calculation of the Rotating Steel Structure of the Bucket Wheel Stacker Reclaimer
By calculating the static strength and fatigue strength of the rotating steel structure of a certain type of bucket-wheel stacker and reclaimer,the richness of the structural strength is evaluated.According to the influence of load on the structure,the structure is divided into four load conditions,which are horizontal heavy load condition,upward no load,downward no load and downward heavy load.According to the working cycle load history of buck-wheel stacker and the design working life of steel structure,the cyclic load spectrum of rotary steel structure was established,and the fatigue strength was calculated according to Miner linear cumulative damage criterion.The results show that the overall stress is low,but the local stress is high.The fatigue calculation result of the rotating steel structure is 0.97,and the fatigue strength richness is also low.The local high stress zone of the structure can be optimized to reduce the local high stress.
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