Stress and deformation analysis of rectangular tank with optimal reinforcement arrangement

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Abstract For the problems caused by the bulky rectangular tank and unreasonable layout design of reinforced structure in engineering, the stress and deformation of rectangular tank are analyzed under static pressure condition by ANSYS APDL. In this paper, six factors and five levels orthogonal test scheme is adopted, in which the maximum primary stress S_1max, maximum equivalent stress S_2max and maximum deformation Δ_max of rectangular tank are taken as test indexes, meanwhile, the spacing A, width B and thickness C of side wall reinforcing iron, and the spacing D, width E and thickness F of end wall reinforcing iron are taken as test factors, and the optimal reinforcement arrangement scheme A₄B₅C₅D₂E₅F₂ is obtained by combining with matrix analysis method, and is optimized by ANSYS first-order optimization algorithm. The results show that the weight of the rectangular tank is reduced by 27% after adopting the optimal reinforcement arrangement. Finally, the limit load analysis method is used to verify the test condition of PT=0.1 MPa.

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	ZHANG Shuai
	LI Qingsheng

Keywords： rectangular tank stress and deformation analysis optimal reinforcement arrangement first order optimization limit load analysis method

Received 2021-03-18;

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ZHANG Shuai, LI Qingsheng.Stress and deformation analysis of rectangular tank with optimal reinforcement arrangement[J] Chemcial Industry and Engineering, 2022,V39(3): 117-126

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