Strength of a Horizontal Reservoir Supported Partially by Two Saddles in its Cylindrical Part

概要

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A cylindrical reservoir supported partially by two saddles is of the most universal type of horizontal reservoirs. In this paper, we tried to find a say to support profitably a reservoir of such a type. The relations of stresses and deformations of a reservoir under saddle reaction forces are investigated. The stresses and deformations are found as the solutions of the differential equations for cylindrical shells introduced by the senior author. Moreover, the effects of end plates on the strength of a reservoir are discussed by researching the relation of saddle location to the stresses in the reservoir. The results of our analyses show the following facts ; Using saddles having suitably rounded edges, the reservoir can be supported without making the local stresses so large. In the case of a reservoir supported in its cylinder part, the saddles sink into the reservoir to make the stresses large in the vicinity of them, so locating the saddles under the end plates is more profitable.
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