CAST-WELDED HEAVY-DUTY MINING DUMP TRUCK FRAMES STRESSED STATE EVALUATION WITH CASTING DEFECTS CONSIDERATION

Algin V.B., Doctor of Technical Science, Professor, Deputy Director in Sciences, the Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

Aleksandrov A.A., Engineer of the Laboratory of Reliability and Metal Intensity of Mining Dump Trucks with Heavy and Super Heavy-Duty STC "Mining Equipment", the Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

The model which takes into account casting defects (blowholes) in calculation of the stressed state of elements of the mining dump truck frame is proposed. Comparative calculations of the stain#stressed state of the frame elements with and without consideration of casting defects are conducted. It is shown that consideration of the porosity by insertion of hollow fragments in the model qualitatively changes the results of the stress analysis. Size variation of hollow fragments influences on changes of the stressed state in a less degree.

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